Takaaki Yamagata

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hydrogenated amorphous silicon photoconductive layer
- Patent number 4,397,933
- Issue date Aug 9, 1983
- Canon Kabushiki Kaisha
- Masao Sugata
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Focus detecting device with photo-sensor array
- Patent number 4,329,577
- Issue date May 11, 1982
- Canon Kabushiki Kaisha
- Noriyuki Asano
- G02 - OPTICS
Information Patent Grant
Range detecting method and apparatus
- Patent number 4,189,232
- Issue date Feb 19, 1980
- Canon Kabushiki Kaisha
- Noriyuki Asano
- G02 - OPTICS
Information Patent Grant
Range detecting method and apparatus
- Patent number 4,178,098
- Issue date Dec 11, 1979
- Canon Kabushiki Kaisha
- Noriyuki Asano
- G02 - OPTICS