Aiichiro Koyama

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Hokkaido, JP

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Patents Grantslast 30 patents

Information Patent Grant
Device for measuring light incident on an image forming optical system
- Patent number 4,178,084
- Issue date Dec 11, 1979
- Canon Kabushiki Kaisha
- Kazuya Matsumoto
- G02 - OPTICS
Information Patent Grant
Device for measuring light incident on an image forming optical system
- Patent number 4,103,153
- Issue date Jul 25, 1978
- Canon Kabushiki Kaisha
- Kazuya Matsumoto
- G02 - OPTICS