| Oct. 1977 Start operation as trial manufacture for institutes.
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| June 1978 Foundation of KOGAKUGIKEN Corp. |
| July 1985 Completion of Head Office and Facility in Atsugi |
| June 1994 Contact with NTT for sales of "EO probe" |
| Aug. 1997 Participation in a project of New Energy Development Organization (NEDO) "Measurement and processing technologies of Photon" |
| Aug. 1997 Participation in a project of Japan Science and Technology Corporation project |
| Sept. 2000 Expansion of Head Office and Facility |
| April 2001 Establishment of 2nd Facility in Hase, Atsugi-shi |
| Nov. 2001 The 18th KANAGAWA High-Tec. Grand-Prix award |
| March 2002 ISO9001 2000 registered |