| April, 1974 | OKADA TRADING INC. founded at Nakano-ku, Tokyo (Capital: 1 million yen) The import business & sales of cemented carbide drills for PCB produced by CARBIDE PRODUCTS INC. and TOOLON INC. was started. |
|---|---|
| September, 1976 | Sales Agent of UNION TOOL CO. |
| April, 1977 | Head Office relocated to Yoyogi, Shibuya-ku, Tokyo |
| September, 1979 | GOOD-AIR JAPAN LTD. founded. |
| March, 1982 | Head Office relocated to Honmachi, Shibuya-ku, Tokyo |
| April, 1984 | Corporate name changed to OKADA TRADING corp. (Capital was increased to 10 million yen) |
| January, 1986 | Nagano Sales Office in Suwa, Nagano opened |
| August, 1988 | Nagano Sales Office in Chino, Chino-shi, Nagano built / relocated |
| March, 1989 | UBE EUREKS corp. founded with our partner UBE TRADING CO., LTD. (Capital: 40 million yen) |
| August, 1990 | Tateshina factory of UBE EUREKS corp. built |
| June, 1991 | Sales Agent of TEMCO co., ltd. |
| September, 1993 | Integrated GOOD-AIR JAPAN LTD. with OKADA TRADING corp. Corporate name changed to OKADA GAJ corp. (Capital: 20 million yen) |
| June, 1996 | UBE EUREKS corp. changed corporate name to eureks corp. as wholly -owned subsidiary |
| April, 1999 | Sales Agent of INCEN AG (Switzerland) |
| May, 2000 | Head Office relocated to Fuda, Chofu-shi, Tokyo |
| May, 2001 | Capital was increased to 30 million yen |
| November, 2003 | OKADA GAJ (SHANGHAI) corp. founded in China (Capital: US$200,000) |
| June, 2005 | Nagano Sales Office changed its name to Nagano Branch |
| May, 2006 | Sales Agent of Takeuchi Co., Ltd. |
| March, 2007 | Junji OKADA assumed the position of President, Kikue OKADA assumed the position of Chairman |
| June, 2012 | Nagano Branch relocated to Tamagawa, Chino-shi, Nagano OKADA GAJ (Thailand) Co., Ltd. founded in Thailand (Capital: 2 million baht) |
| March, 2014 | Capital was increased to 94.3 million yen |
| (as of April 2015) |