JIS Data Sources

This section will provide documentation for the sources of data for the JIS database.

Primary Sources

The primary source of data on JIS certifications is a monthly magazine published by the Japanese Standards Association, which is commonly called the "JIS Monthly Report". The magazines are available in a number of Japanese libraries, and the National Diet Library (NDL) has digitized the volumes and provides a full-text search facility for library patrons.

The monthly magazines were complemented by the "JIS表示許可工場名簿" ("List of Factories Approved for JIS Certification"), which were published occasionally on a somewhat irregular basis. The list of certified factories is known to have been published in 1962, 1964, 1967, 1968, 1972, and 1982. Printed copies of the published lists are available in some Japanese libraries.

These two sources are significantly different in the level of detail. The Monthly Reports are basically transactions applying to a particular company and product class, such as new certifications, suspensions, or revocations.

In contrast, the list of certified factories shows the cumulative JIS certification status for a company and product class, but only for those companies retaining JIS certification. Once a company's JIS certification has been released or revoked, it will be dropped from the next publication of the list.

We've used the word "cumulative" because an entry in the list typically includes the accumulated effects of multiple prior tests or events. It may show the JIS number and date from the original certification, an upgrade to "Strong" class from a later test, and a new factory address from the most recent change.

We will refer to the lists of certified factories as the JIS Certified List for the particular year. We were able to find scans of parts of the JIS Certified Lists (for a particular product class) on the CWC website.

Supplementary Sources

Additional summaries of JIS certifications from the 1950s are available in "Factory Name List" publications, but with less detail than the later reports. We have summaries for 1955 and 1958 for certain JIS classes.

A summary of JIS certified companies in 1999 was published on the JISC website and is currently available as an archived website. This is by far the most convenient source for us, as the data is already machine-readable and can be readily translated. In addition, the data includes a wide range of product classes.

We have extracted data from the web pages to create the 1999 JIS Summary tables in this document. Please see the 1999 Summary section for the details.

The Japanese Industrial Standards Committee (JISC) offers a Database Search [External Link] website that allows searching for various JIS-related topics, including definitions of the JIS standards as well as currently active certifications.

JQA JIS Sources

In 2005 the JQA assumed responsiblity for JIS testing and publishes certifications on their website. Data on JQA certifications can be found at the JQA JIS My Page [External Link] website.

Unfortunately the JQA data is available only for active certifications. Once a company terminates their contract with JQA, the information on prior certifications remains available only for one year and then is expunged from the website. There are no known printed reports or other hard-copy backups for the JQA certifications, so it appears that once the data is deleted, there is no way to recover the historical information.

OCR Conversions

Our starting point for JIS certification data is typically a scan of a Japanese document. In order for us to work with the data, it must be turned into machine readable text so that it can be translated, and this requires the use of Japanese OCR software. Fortunately there are a number of websites offering free Japanese OCR conversions.

As with any OCR conversion process, there will typically be a number of errors due to unrecognizable characters. In some cases we were able to fix errors by editing the scan with a graphics editor and rescanning certain areas, a time-consuming process that with sufficient patience may yield good results.

If any of the remaining errors are annoying for our Japanese readers, feel free to send us an email showing the incorrect text and the correct form (in UTF8 please).😜

Annotations for Sources

The events table of our JIS database includes a "notes" field which will typically include the earliest source of the data, along with any relevant comments. The notes field uses abbreviations "MR" for Monthly Report, "AMR" for Aggregated Monthly Reports, "FNL" for Factory Name List, "CL" for Certified List, and "SR" for Summary Report.

For example, a test first reported in the 1962 Certified List will be tagged "1962 CL".

When possible, the event data source in a database report will be a formatted as a link into the relevant web page showing details for the source. When the original source was an issue of the Monthly Report, the source will be identified by year, month, and page number.

Errata

It would be nice if we could assume that the official JIS publications were error-free — after all, it is a quality assurance organization! But it turns out that a number of errors have been found in the JIS publications, including examples of incorrect dates, misspelled company names, and even incorrect JIS numbers.

Originally we had planned to make a list of the errors, but it became obvious that there are too many errors to enumerate, and that presenting a long list of errors would not be especially helpful. Instead, known errors have been be reported in red in the comments below each section of a publication.

Whenever possible the errors have been corrected before being added to the JIS database.

Library Sources

The Japanese National Diet Library (NDL) holds copies of most of the JIS publications and offers full-text search facilities for accessing the publications. In this section we'll provide information on searching for JIS information at the NDL.

Searching the Monthly Reports

The NDL has digitized the JIS Monthly Reports and the publications can be searched over the internet by anyone with an NDL library pass. The search facility presents a structured search form with fields for keywords, title, publisher, date range, and other attributes.

The basic search strategy for JIS certification data is to fill in the "Title" field and then use the "Keyword" field for either the JIS class or company name. In the reports the JIS classes have white space between the prefix and the numerical part, so class "B4604" should be entered as "B 4604", or possibly just as "4604".

As with any digitized data, there may be OCR errors that will occasionally prevent the search from matching certain fields. Thus it may be helpful to use the JIS number or company address as a keyword if the class and company name don't yield a match. It also may help to search using only part of the company name or address, especially the parts with simpler kanji that are less likely to have been mangled by the OCR.

It turns out that the full title of the Monthly Reports changed over the years, and the table below has the name to use for different time periods. For simplicity though we've found that "標準化" seems to work for all time periods.

Missing Data

Currently we're missing information from the Monthly Reports for a number of certifications that are known (or suspected) from later reports. We've done a preliminary search for these certifications and in many cases have been able to narrow down the probable location to a single issue.

If any of our Japanese readers have an NDL pass and feel like trying some searches, the table below will give you a good starting point.

If you find any of these certifications, please download a scan of the page as a .jpg file and email it to us!

JIS Monthly Reports

One of the primary sources for JIS information is the monthly magazine published by the Japanese Standards Association, which we will refer to as the Monthly Report. (The actual title changed over the years, as noted in the previous section.) The Monthly Reports provided timely updates for new certifications as well as suspensions, revocations, or other changes to the certification status of individual companies.

In this section we'll look at some examples of JIS data from the Monthly Reports. The examples span a period from the early 1950s to the 1990s, and the reader will notice a gradual improvement in the level of detail over the first two decades of this span.

Available Scans from Monthly Reports

Since all of the data in this section comes from the published Monthly Reports, we'll begin with a listing of the pages of the reports currently available to us. The year and month are the publication date for the report, and the cells show the page numbers where relevant certification data was found.

Monthly Report 1952-01: JIS Certifications for Classes B4604 and B4605

Early JIS testing used different classes for adjustable wrenches based on the jaw offset angle, with class B4604 for 15 degrees and B4605 for 23 degrees.

Fig. 5. MR 1952-01 JIS Certifications in Classes B4604 and B4605.

The scan in Fig. 5 shows the first five JIS certifications in classes B4604 and B4605, as published on page 31 of the January, 1952 issue of the "JIS Monthly Magazine".

Note that the heading only shows katakana for "Wrenches", and that the assigned JIS numbers and date for the tests are not reported.

The table below shows an approximate conversion of the above scan into Japanese text, with the JIS numbers and date filled in from later reports.

Comments on 1952-01 JIS Records for B4604 and B4605

• Since the JIS classes are not reported, these tests are an unknown mix of B4604 (15 degree offset) and B4605 (23 degree offset). From later production we know that all of the companies made 23 degree wrenches except for Sanjō Kikai (JIS 655), so it's likely that only Sanjō Kikai was in class B4604.
• On January 30, 1954 class B4605 was folded into class B4604, so all of these JIS registrations are later reported in class B4604.
• The address for Nippon Riki (JIS 658) failed the OCR conversion and has been reconstructed by hand.

Monthly Report 1952-01: JIS Certifications for Classes B4623-B4625

Fig. 6. MR 1952-01 JIS Certifications in Classes B4623-B4625.

The scan in Fig. 6 shows a group of JIS certifications in classes B4623 to B4625, as published on page 31 of the January, 1952 Monthly Report.

Note that the heading only shows katakana for "Penchi", meaning cutting pliers, and that the assigned JIS numbers, classes, and date for the tests are not reported.

This table appears right above the table for class B4604 on page 31 of the monthly report, and it turns out that the date is the same (Showa 26.6.28) as that for the B4604 certifications.

The table below shows an approximate conversion of the above scan into Japanese text, with headers added for convenience. Of the seven companies listed in the scan, five were also listed in the 1955 FNL for classes B4623-B4625, and we have used the JIS numbers, test date, and classes from the 1955 report.

For the other two companies, we have assumed that the JIS numbers (649 and 650) are in sequence and that the test date is the same.

Monthly Report 1952-05: JIS Certifications for Classes B4623-B4625

Fig. 7. MR 1952-05 JIS Certifications in Class B4623-B4625.

The scan in Fig. 7 shows four JIS certifications in classes B4623 to B4625, as published on page 158 of the May, 1952 Monthly Report (JIS Vol. 5 No. 5).

Note that the heading only shows katakana for "Penchi", meaning cutting pliers, and that the assigned JIS numbers, classes, and date for the tests are not reported.

The table below shows an approximate conversion of the above scan into Japanese text, with the JIS numbers and date filled in (or estimated) from later reports. Please see the comments below the table for a description of how the missing data was reconstructed.

Comments on 1952-05 JIS Certifications for Classes B4623-B4625

• Of the four companies in this table, only the fourth (Maruto Hasegawa) appears in the 1955 Factory Name List for Classes B4623-25, where it is reported with JIS 1018 for class B4623. The date for JIS 1018 is reported as Showa 26.10.31 in later reports.
• Usually all certifications occur on the same date, so the known date for JIS 1018 has been used for the other three companies.
• The date Showa 26.10.31 corresponds to October 31, 1951. (Add 1925 to convert Showa dates.)
• Early JIS reports usually list the companies in order of certificate number, so we have assigned sequential numbers to the first three companies.
• Class B4623 is the most common type for cutting pliers, so we have assumed this class for the first three companies.

Monthly Report 1952-09: Certifications for Classes B4604 and B4606

Fig. 8. 1952-09 JIS Certifications for Classes B4604 and B4606.

The scan in Fig. 8 shows a list of six companies with new JIS certifications for classes B4604 and B4606, as published on page 286 of the September, 1952 issue of the JIS monthly Report.

The scan was downloaded from the CWC website and comes with some useful annotations in red, providing the date and noting that one company had an earlier certification as well.

Fig. 9. Cover of September, 1952 JIS Monthly Report.

The scan in Fig. 9 shows the cover of the September, 1952 issue of the JIS Monthly Report, the original source of the JIS certification data shown above.

The table of names and addresses above shows the challenges of working with early published JIS data — there are no certificate numbers or dates in the original publication! The notations in red were added by the CWC site to provide the known context.

In addition, even the type of product (JIS class) is not stated, except for the caption identifying the table as just "renchi" (wrenches)! As it turns out, the registrations are for a mix of adjustable and pipe wrenches.

Obviously we will need more context to make this information useful, so we will begin with an OCR conversion and then try to supply the missing data.

We ran the above scan through a Japanese OCR conversion and (after much hand editing) have placed the output in the table below, with headers added for convenience.

Since there is no "Notes" field in the original document, we have added this field based on the discovered information, and have included the appropriate JIS class(es) B4604 (adjustable wrenches) or B4606 (pipe wrenches).

The comments below the table will explain how the JIS certificate numbers were filled in.

Comments on 1952-09 JIS Certifications for Classes B4604 and B4606

• The date (the same for all companies) was filled in based on the added notation (in red) on the scan, and agrees (plus or minus a day) with later records.
• The date Showa 27.5.13 corresponds to May 13, 1952. (Add 1925 to convert Showa dates.)
• The first company is Nittan Kōki (日鍛工器), and a quick check of the 1955 Factory Name List report shows that it received JIS number 1447 for class B4604 on May 13, 1952. The address here is for Takasu, an early factory.
• The second company is An'naka Kōgu (安中工具) with a factory at Shijo in Osaka, and would presumably get JIS 1448 in sequential order. It also appears in the 1955 Factory Name List with a factory at 475 Shijo-cho and with the expected number 1448 in class B4604.
• The third company is the Naka Nihon Electric Company (日本電工業) with a Daiko factory in Nagoya, Aichi prefecture. The 1955 Factory Name List lists JIS number 1449 for the Shin Mitsubishi Electric Company with a Daiko factory in Nagoya, so we can be reasonably sure that this is the same factory with a change of the company name. This company makes pipe wrenches, class B4606.
• The fourth company is Matsusaka Iron Works (松阪鉄工所) with an address at 200 Daigakukakibana in Matsusaka City, Mie prefecture. The 1955 Factory Name List lists Matsusaka Iron Works with JIS 3064 for pipe wrenches, known from later reports have a 1954 date. If the JIS numbers are being listed sequentially, this would assign 1450 to Matsusaka, and since the company made pipe wrenches in 1954, we are assuming that it made pipe wrenches in 1952.
• The fifth company is Daidō Kōki (大同工機) with an address at 4-33 Daikai-cho in Osaka, which would get JIS 1451 in sequential order. When we check the 1955 Factory Name List there is no Daidō company, but there is a Shin Sanda Kōgyō with an address at 4-32 Daikai-cho, which received JIS 2722 for class B4606 on November 16, 1953. We think it's likely that Daidō Kōki changed its name to Shin Sanda Kōgyō, and may have discontinued making adjustable wrenches in favor of pipe wrenches.
• The sixth company is Toho Kōki (東邦工機) with an address at 114 Shinke-cho in Osaka. The 1962 Certified List notes that Toho Kōki received JIS 1452 for class B4606 on May 12, 1952, with an address at 114 Shinke-cho, but with a different description of the city section that probably indicates a civic reorganization. (The annotation in red in the scan is for an earlier JIS 657 registration by Toho Kōki in class B4604.)
• Since all but two of the JIS numbers have been verified and fall into sequential order, we think it's highly likely that the other two are sequential as well.

Monthly Report 1953-02: Certifications for Class B4630

Fig. 10. 1953-02 JIS Certifications for Class B4630.

The composite scan in Fig. 10 shows a list of seven companies with new JIS certifications for class B4630, as published on page 76 of the February, 1953 (Vol. 6 No. 2) Monthly Report. (The scan has been edited to show just the table of interest under the page heading.)

As was the case with the previous scan, there are no certificate numbers or dates, but the CWC site has added a caption indicating the certification date as November 10, 1952.

These are well known companies (and certifications) so we could simply look up the JIS numbers.

We tried to get clean OCR conversions for the addresses, in order to capture the place names as presented in 1952, but there were many errors. We're attempting to fix them by hand.

Monthly Report 1953-09: Certifications for Akashi and Yamaco in Class B4605

Fig. 11. 1953-09 JIS Certifications for Akashi and Yamaco.

The scan in Fig. 11 shows the JIS certifications for Akashi and Yamaco in class B4605, as published on page 429 of the September, 1953 Monthly Report.

The B4605 class for these certifications was used in early JIS testing and indicates an adjustable wrench with a 23° jaw angle.

No test date or JIS numbers are provided, but Akashi was later published with JIS 2354, and Yamaco is known to have received 2356. Why aren't they sequential? Maybe there was an intervening company with a wrench in class B4604.

On January 30, 1954 all adjustable wrench tests were folded into class B4604 with notes to indicate the jaw angle, and Yamaco's certification would have been converted to B4604.

Monthly Report 1954-03: Certifications for Class B4614

Fig. 12. 1954-03 JIS Certifications for Class B4614.

The scan in Fig. 12 shows a group of four JIS certifications in class B4614, as published on page 141 of the March, 1954 Monthly Report.

The table below shows an approximate conversion of the scan to Japanese text. The JIS number and date have been filled in from later reports.

Monthly Report 1954-03: Certifications for Class B4631

Fig. 13. 1954-03 JIS Certifications for Class B4631.

The scan in Fig. 13 shows a group of three JIS certifications in class B4631, as published on page 141 of the March, 1954 Monthly Report.

The table below shows an approximate conversion of the scan to Japanese text. The JIS number and date have been filled in from later reports.

Monthly Report 1955-09: JIS 4248 for Maeda in Class B4636

Fig. 14. 1955-09 JIS Certifications for Maeda.

The composite scan in Fig. 14 shows a set of three separate JIS certifications for Maeda, as published on the CWC website.

The first record is for JIS 4248 in class B4636 (socket wrenches) and is dated 30.9.6 (September 6, 1955). [Editor's note: get the date and page number of the original source.]

The table below shows the OCR conversion for the first record. (The other certifications are shown in the Aggregated Monthly Reports.)

Monthly Report 1958-10: JIS 6159 for Asahi in Class B4630

Fig. 15. 1958-10 JIS Certification 6159 for Asahi.

The composite scan in Fig. 15 shows JIS certification 6159 for Asahi in class 4630, as published on page 5 of the October, 1958 Monthly Report. (The scan has been edited to show just the certification of interest.)

The block of white text at the top translates as "JIS display permission factory permission status".

This document doesn't give the exact date for the certification, but instead the two lines at the right give the date range as Showa 33.8.15 to 33.9.15 (August 15, 1958 to September 15, 1958), presumably the dates covered by this monthly report. The exact date was listed as August 27, 1958 in the 1962 Certified List.

The company name and address are readable but too small for an OCR conversion, but we recognize it as Asahi Kinzoku Kōgyō at the Fuse factory in Osaka prefecture.

Monthly Report 1963-12: JIS 9589 for Sugimoto Tankō in Class B4630

Fig. 16. 1963-12 JIS Certification 9589 for Sugimoto Tankō in Class B4630.

The composite scan in Fig. 16 shows JIS certification 9589 for Sugimoto Tankō in class B4630, as published on page 89 of the December, 1963 Monthly Report. (The scan was edited to show just the certification of interest.)

The table below shows the scan converted to Japanese text.

Comments on 1963-09 JIS 9589 Record

• The original document provides a date range from Showa 38.9.3 to 38.10.10, but the exact date of September 17, 1963 is known from a later report. (Add 1925 to convert Showa dates.)

Monthly Report 1964-04: JIS 9785 for Itō Kōgu in Class B4631

Fig. 17. 1964-04 Report of JIS Certification 9785 for Itō Kōgu in Class B4631.

The composite scan in Fig. 17 shows JIS certification 9785 for Itō Kōgu in class B4631, as published on page 93 of the JIS Monthly Report for April, 1964. (The original scan has been edited to show just the B46xx certifications.)

As a bonus we get two certifications for Hokuyo Sangyo, JIS 9786 in class B4604 and JIS 9787 in class B4614.

The table below shows an approximate conversion of the scan to Japanese text.

Comments on 1964-04 Monthly Report for JIS 9785

• The original document provides a date range from Showa 38.12.17 to 39.1.27, but the exact date of 38.12.16 for JIS 9785 is known from a later report. (Add 1925 to convert Showa dates.)

Monthly Report 1965-10: JIS 565060 for Ouchi in Class B4630

Fig. 18. 1965-10 JIS Certification 565060 for Ouchi Tankō in Class B4630.

The composite scan in Fig. 18 shows JIS certification 565060 for Ouchi Tankō in class B4630, as published on pages 80 and 81 of the October, 1965 Monthly Report. (The heading from the previous page was combined with the certification of interest.)

The heading shows a date range from May 10, 1965 to August 14, 1965, with the actual publication date some months later.

The table below shows the scan converted to Japanese text.

Comments on 1965-10 JIS 565060 Record

• The original document provides a date range from Showa 40.5.10 to 40.8.14, or May 10, 1965 to August 14, 1965. (Add 1925 to convert Showa dates.)

Monthly Report 1971-02: Certifications for Maruto Hasegawa in Classes B4623 and B4631

Fig. 19A. 1971-02 Monthly Report for Maruto in Classes B4623 and B4631.

The composite scan in Fig. 19A shows JIS certifications 1018 in class B4623 and 370202 in class B4631, as published on page 31 of the February, 1971 Monthly Report.

The scan has been edited to show just the certifications of interest, and the test date of 45.11.12 is represented by the quotes in the third column.

These certifications for Maruto Hasegawa have already been entered into our Aggregated Monthly Reports table, but we wanted to show the original scan here, since it is of special interest. Do you notice anything different in this report?

The column at the right has the product notes for the tests, with both "Strong" and "Normal" grade for class B4623! This is the earliest Monthly Report we've found that provides a column for the product notes.

By 1955 the product notes had become an essential requirement for any class with suffixes, yet it wasn't until more than 15 years later that the Monthly Report finally began reporting the field!

Monthly Report 1973-02: JIS 372165 for Kita Nihon in Class B4630

Fig. 19. 1973-02 JIS Certification 372165 for Kita Nihon in Class B4630.

The composite scan in Fig. 19 shows JIS certification 372165 for Kita Nihon in class B4630, as published on page 28 of the February, 1973 Monthly Report. (The scan has been edited to show just the certification of interest.)

This certification turned out to be important in tracing an otherwise obscure business succession, as JIS 372165 was transferred when Shin Nihon Tankō acquired Kita Nihon, and later was transferred to Asahi Kinzoku.

We want to draw the reader's attention to the fact that this monthly report has included the exact date of the test, as well as the product notes, which indicate "maru" (round) style single and double ended in "N" and "H" grade, as well as "spear type".

This is one of the earliest monthly reports we've found that provides the product notes, which are often essential to understand the scope of the certification.

Comments on 1973-02 JIS 372165 Record

• The Showa era date in the table is for October 13, 1972. (Add 1925 to convert Showa dates.)
• The product notes include "maru" shape single and double ended, normal grade and strong grade, and a spear point shape.

Monthly Report 1975-01: JIS 374091 for Aigo Kōgyō in Class B4604

Fig. 20. 1975-01 JIS Certification 374091 for Aigo Kōgyō in Class B4604.

The scan in Fig. 20 shows JIS certification 374091 for Aigo Kōgyō in class B4604, as published on page 19 of the January, 1975 Monthly Report.

The table below shows an approximate conversion of the scan to Japanese text.

Comments on 1975-01 JIS 374091 Record

• The Showa era date in the table is for October 4, 1974. (Add 1925 to convert Showa dates.)
• The address is for the Shinbo (新保) factory.
• The comments note fully forged, 23 degree angle, and strong grade.

Monthly Report 1982-02: JIS 2356 Class B4604 Revoke for Yamaco

The next two scans show a revocation and restoration for JIS 2356 on the same day, for a change in the factory from Rokumanji to Kano.

Fig. 21. 1982-02 JIS 2356 Class B4604 Revoke for Yamaco.

The composite scan in Fig. 21 shows a revocation of JIS 2356 in class B4604 for Yamaco, as published on page 32 of the February, 1982 Monthly Report. (The scan was edited to show only the cancellation of interest.)

The table below has an approximate conversion of the scan into Japanese text.

Comments on 1982-02 JIS 2356 Class B4604 Revoke Record

• The Showa era dates in the table are for October 26, 1981 and June 20, 1953. (Add 1925 to convert Showa dates.)
• The Showa 28.6.20 date gives us the correct original date for JIS 2356.
• The Showa 56.10.26 date is a revocation for a factory move, and JIS 2356 was reinstated on this same date at the new factory.

Monthly Report 1981-10: JIS 2356 Class B4604 Restore for Yamaco

This next figure is a continuation of the previous figures and shows the corresponding restoration event.

Fig. 22. 1981 JIS 2356 Class B4604 Restore for Yamaco.

The scan in Fig. 22 shows the restoration of JIS 2356 in class B4604 for Yamaco, as shown on the CWC website.

This report was originally published in the "Standardization Journal" for February, 1982. [Editor's note: get the page number of the original source.]

The table below has an approximate conversion of the scan into Japanese text.

Comments on 1981-10 JIS 2356 Class B4604 Restore Record

• The Showa era date in the table is for October 26, 1981. (Add 1925 to convert Showa dates.)
• The factory address is now for Kano (加納).
• After the restoration, JIS 2356 now has a note for "strong grade".

Monthly Report 1982-04: JIS 1978 Release by Osaka Tankō

Fig. 23. 1982-04 JIS 1978 Release for Osaka Tankō.

The scan in Fig. 23 shows the record releasing JIS 1978 for Osaka Tankō in class B4630, as published on page 42 of the April, 1982 Monthly Report.

The table below has an approximate conversion of the scan into Japanese text.

Comments on 1982-04 JIS 1978 Release Record

• The caption says "Factories with revoked licenses (due to license refusal and expiration)".
• The two Showa era dates are for November 30, 1981 and November 10, 1952. (Add 1925 to convert Showa dates.)
• The notes state round type single and double ended in normal and strong grade, and spear point double-ended.
• Although this record notes certification for "strong grade" (強力), none of the JIS summaries document strong grade for Osaka Tankō.

Monthly Report 1984-07: JIS 1448 Release by An'naka Kōgu

Fig. 24. 1984-07 JIS Release for An'naka Kōgu Class B4604.

The scan in Fig. 24 shows the JIS record releasing (or revoking) JIS 1448 for class B4604, as published on page 63 of the July, 1984 Monthly Report.

The table below shows an approximate conversion of the scan to Japanese text.

Comments on 1984-07 JIS 1448 Release Record

• The two Showa era dates are for March 5, 1984 and May 13, 1952. (Add 1925 to convert Showa dates.)
• The fourth column shows the company name "安中工具" or "An'naka Kōgu", and the fifth column gives the address as "大阪東大阪市四条町 18-14" or 18-14 Shijocho, Higashi-Osaka City, Osaka.
• The last column has a series of footnotes, with "monki renchi" as the heading. The first line notes fully forged 23 degree angle in strong grade, and the second line notes fully forged 23 degree normal grade. The bottom line notes that the lower jaw is forged for the 23 degree angle.

Monthly Report 1984-08: JIS Revoke for Toho Kōki Factory Move

This next record is one of the most interesting examples of JIS transactions at work, as it simultaneously revokes all of Toho Kōki current registrations due to an impending move to a new factory. In the process it also provides a snapshot of the current state, which includes some information we didn't have before.

Fig. 25. 1984-08 JIS Revoke for Toho Kōki Factory Move.

The scan in Fig. 25 shows the JIS record revoking all of Toho Kōki's registrations due to a factory move.

The transactions are dated on April 11, 1984 and were published on page 55 of the 1984-08 Monthly Report.

The table below shows an approximate conversion of the scan into Japanese text.

The form is relatively simple and the fourth column shows the Toho Kōki name 東邦工機 on all lines, along with the current address.

Apart from the comments noted below, most of the form is without controversy, and the data has been entered into the JIS database as a "Revoke" transaction for each JIS number and class, on the stated date of April 11, 1984.

Comments on 1984-04 JIS Revoke Record

• The first interesting observation is that JIS 657 is listed as covering both classes B4604 (adjustable wrenches) and B4606 (pipe wrenches). Originally these two classes had separate numbers, with 657 for class B4604 issued on June 28, 1951 and 1452 for class B4606 issued on May 13, 1952. None of the JIS summary reports that we've seen thus far (2024) have shown these two classes joined under 657, so this part is news already.

  Having the two classes joined onto 657 implies that there should have been an intervening JIS record to explain the change, and then a record to revoke the 1452 class B4606 registration. We haven't found these records yet, and the JIS 1452 registration was still in effect in the 1964 Certified List.

• And as one additional observation, previously we didn't have documentation for the JIS 566035 and 566036 registrations, but now we at least know they happened on June 18, 1966.

Monthly Report 1985-09: Restore JIS 657 After Toho Kōki Factory Move

This next record is a follow-up to the previous example, as Toho Kōki's registrations for classes B4604 and B4606 are restored after completing the factory move.

Fig. 26. 1985 Restore JIS 657 for Toho Kōki B4604/B4606 After Factory Move.

The scan in Fig. 26 shows the JIS record restoring Toho Kōki's JIS 657 registration for classes B4604 and B4606.

This transaction was dated June 13, 1985 and was published on page 44 of the 1985-09 JIS Monthly Report.

The table below shows an approximate conversion of the scan into Japanese text. This data has been entered into the JIS database as a "Restore" transaction on June 13, 1985.

As a side note, JIS 566035 was restored on October 16, 1985, but due to data limitations we didn't learn about it until the 1999 summary.

Comments on 1985-09 Restore JIS 657 Record

• The Showa date 60.6.13 is for June 13, 1985. (Add 1925 to convert Showa dates.)
• The address is for the new factory in Yamatokoriyama.
• Note that both classes are now offered only in "Strong" (強力) grade. Before the factory move both Strong and Normal grades were produced.

Monthly Report 1985-10: Cancellation for Maeda JIS 4248

Fig. 27. 1985-10 Cancellation for Maeda JIS 4248.

The scan in Fig. 27 shows the record for the cancellation of Maeda's JIS 4248 registration for class B4636 at the Fukae factory, as published on page 83 of the JIS Monthly Report for October of 1985.

The table below shows an approximate conversion of the scan into Japanese text. Note that three classes (B4636, B4637, and B4639) are listed under "Type and Grade", but only one class B4636 is shown under "Details". At the time of the cancellation, JIS 4248 covered the three classes, but only B4636 was being canceled. Maeda had received JIS 584030 for class B4636 at the new Tondabayashi factory on June 15, 1984 and no longer needed to produce sockets at Fukae.

This data has been entered into the JIS database as a "Revoke" transaction for class B4636 on June 17, 1985.

Comments on 1985-10 Cancellation of JIS 4248 Record

• The Showa date 60.6.17 is for June 17, 1985. (Add 1925 to convert Showa dates.)
• The address is for the factory at Fukae.

Monthly Report 1992-03: Transfer of JIS 379123 to Dia Seiko

This next record is an unusual case of a transfer of an earlier JIS registration to the successor company a number of years after a reorganization. In 1984 Inoue Seisakusho was having financial problems and was reorganized into Dia Seikō, and eight years later the new company was able to transfer an earlier JIS certification.

Fig. 28. 1992-03 Transfer of JIS 379123 to Dia Seiko.

The scan in Fig. 28 shows the JIS record transferring the registration of JIS 379123 to Dia Seiko, as published on the CWC website. [Editor's note: get the date and page number of the original source.]

The table below shows an approximate transcription of the scan into Japanese text.

Comments on 1992-03 Transfer of JIS 379123 Record

• This record includes two dates, Heisei 4.3.17 for March 17, 1992 and Showa 54.10.2 for October 2, 1979. (Add 1988 to convert Heisei dates, 1925 for Showa dates.)
• The original JIS registration applied to the three classes B4630, B4632, and B4651. Although this record doesn't explicitly state the class, the 1999 SR shows JIS 379123 for Dia Seiko in all three classes.
• Should the transferred JIS registration have the original date or the transfer date? The 1999 SR shows JIS 379123 for Dia Seiko with the original date, effectively treating the business succession as simply a change of company name.

Monthly Report 1994-11: Cancellation of Certifications for Socket Wrenches

Fig. 29. 1994-11 Cancellation of JIS 5900 and Others.

The scan in Fig. 29 shows the JIS records of the cancellation of JIS 5900 and other other certifications for socket wrenches, as published on pages 74 and 77 of the November, 1994 JIS Monthly Report. (The scan also shows cancellations for several other products besides socket wrenches.)

These cancellations are believed to be administrative changes to consolidate multiple JIS certifications into a single certificate number.

The table below shows an approximate transcription of the scan into Japanese text. (The non-socket wrench products have been omitted.)

Comments on 1994-11 Cancellations

• The Heisei era date 6.7.4 is for July 4, 1994. (Add 1988 to convert Heisei dates.)

Aggregated Monthly Reports

In order to save time and space, we have aggregated a number of monthly reports into the table below, with notes to indicate the source and action. Data sourced from this table will be tagged with "AMR" in the JIS database.

The entries are ordered by publication date and class.

Comments on Aggregated Monthly Reports

• Dates are shown as Showa or Heisei (H prefix) era. (Add 1925 to convert Showa dates, 1988 to convert Heisei dates.)
• The exact date for JIS 6055 (Yamashita) is not known, but has been estimated at 33.7.15.
• JIS 370127 on page 91 of the 1970-11 report is believed to be incorrect and has been corrected to 370217.
• The street number in the 1973-04 scan for JIS 372259 is incorrect and should be 1240.
• JIS 9185 (Maeda) on page 81 of the 1981-11 report is believed to be incorrect and has been corrected to 9181.
• The original certification date for JIS 365200 in the 1984-05 cancellation should be 40.12.2.
• The 1991-11 cancellation of JIS 365198 may be an error. The 1999 Summary shows that Top Kōgyō's JIS registrations for classes B4623, B4625, B4631, and B4635 are all consolidated into JIS 365198, so it doesn't make sense that it would have been canceled. Instead, we think that JIS 383105 would have been canceled as part of the consolidations.