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Kohgakusha Engineering Co., Ltd.
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Sappora, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical axis displacement sensor with cylindrical lens means
Patent number
4,897,536
Issue date
Jan 30, 1990
Okada Inc.
Takashi Miyoshi
G01 - MEASURING TESTING
Information
Patent Grant
Optical axis displacement sensor
Patent number
4,828,390
Issue date
May 9, 1989
Okada Inc.
Takashi Miyoshi
G01 - MEASURING TESTING
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