| 1940 | Mr. Takeo Kuramoto established Kyoritsu
Electronic Research Institute and started
to manufacture electric materials. |
| 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 | DC milliamp Clamp Meter "KEW2500" sales started |
| 2012 | Consent N-Etester "KEW4500" recieved the award on
"Electrical Construction Equipment and Materials Fair 2012"
produced by Japan Electrical Construction Association. |
| 2013 | Earth Tester "KEW4500" was developed and won
the technological Innovation prize of Shikoku Industry & Technology Promotion Center. |
| 2015 | Kew(Thailand)Ltd. , the 2nd factory was completed. |
| 2015 | The 75th anniversary of the founding of Kyoritsu. |
| 2015 | Kyoritsu Instruments Asia Pte Ltd. was established in Singapore. |
| 2016 | Ior Logger "KEW5050" recieved the award on
"Electrical Construction Equipment and Materials Fair 2016"
produced by Japan Electrical Construction Association. |
