History
| 1940 | Mr. Takeo Kuramoto established Kyoritsu Electronic Research Institute and started to manufacture electric materials. |  |
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| 1950 | Incorporated and named Kyoritsu Electrical Instruments Works, Ltd. | |
| 1957 | The Headquarters and Factory were moved to the present site, Meguro-ku, Tokyo. |  |
| 1965 | Succeeded in development of clamp type alternating current-voltage-resistance meter and started it's manufacture and sale |  |
| 1970 | Ehime Factory at Uwa-machi Higashiuwa-gun of Ehime Prefecture was completed. |  |
| 1979 | Uwajima Factory at Mima-cho, Uwa-gun of Ehime Prefecture was completed. |  |
| 1984 | Mr. Masamichi Kuramoto took the post of President and Director succeeding Mr. Takeo Kuramoto. | |
| 1985 | Osaka Office was established. | |
| 1987 | Kew(Thailand)Ltd. was established with investment of 100% capital by Kyoritsu, and the Factory at Navavakorn Industrial Estate,Klonganung, Pathumthani, Thailand was completed in December. |  |
| 1989 | The construction of the building for the Headquarters was completed. |  |
| 1993 | Ehime Factory was awarded certificate of approval to ISO 9001 Quality Standards. | |
| 1995 | Sendai Office was established.(Integrated to Tokyo sales office) | |
| 1996 | Kew(Thailand)Ltd. was awarded certificate of approval to ISO 9002. | |
| 1999 | Uwajima Factory was awarded certificate of approval to ISO 9001 Quality Standards. | |
| 2001 | "Kewmate 2000", a digital multi meter with AC/DC open clamp sensor, was awarded the prize of Ministry of International Trade and Industry(MITI) in the Electrical Construction Equipment and Materials Fair 2001. |  |
| 2003 | Kewtech Corporation Ltd. was established. |  |
| 2003 | Shanghai Rep. Office was established. | |
| 2007 | Nagoya Office was established. | |
| 2008 | Kew Europe Office was established in Italy. |  |
| 2008 | KYORITSU SHANGHAI TRADING COMPANY LIMITED was established. |  |
| 2008 | Uwajima factory is closed down and it unifies to the Ehime factory. | |
| 2012 |
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| 2013 | Earth Tester "KEW4500" was developed and won the technological Innovation prize of Shikoku Industry & Technology Promotion Center. |
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| 2015 |
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| 2016 | Ior Logger "KEW5050" recieved the award on "Electrical Construction Equipment and Materials Fair 2016" produced by Japan Electrical Construction Association. |  |
| 2017 | Insulation Testers "KEW3441BT" recieved the award on "Electrical Construction Equipment and Materials Fair 2017" produced by Japan Electrical Construction Association. |  |
| 2018 | Electrical outlet Testers "KEW4505" recieved the award on "Electrical Construction Equipment and Materials Fair 2018" produced by Japan Electrical Construction Association. |  |
| 2019 | Opened Shikoku Office (sales office) in Ehime Prefecture |  |
| Portable Appliance Tester "KEW6206" recieved the award on "Electrical Construction Equipment and Materials Fair 2019" produced by Japan Electrical Construction Association. | ||
| 2020 |
The 80th anniversary of the founding of Kyoritsu. 【80th anniversary special website】 |
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| 2022 | Multi Function Installation Tester "KEW6514BT" recieved the award on "Electrical Construction Equipment and Materials Fair 2022" produced by Japan Electrical Construction Association. |  KEW 8601 KEW 6514BT |
| 2023 | Opened Kyushu Office (sales office) in Fukuoka Prefecture |  |
| Multi Function Installation Tester "KEW6041BT" recieved the award on "Electrical Construction Equipment and Materials Fair 2023" produced by Japan Electrical Construction Association. | ||
| 2024 | Intelligent Socket Tester "KEW4555BT" recieved the award on "Electrical Construction Equipment and Materials Fair 2024" produced by Japan Electrical Construction Association. |  KEW 4555BT KEW 8345 |
