Masatoshi Yamada

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Okaya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Automatic focusing device
- Patent number 5,121,153
- Issue date Jun 9, 1992
- 501 Chinon Kabushiki Kaisha
- Masatoshi Yamada
- G02 - OPTICS
Information Patent Grant
Automatic focusing device used for a camera
- Patent number 5,121,154
- Issue date Jun 9, 1992
- Chinon Kabushiki Kaisha
- Masatoshi Yamada
- G02 - OPTICS
Information Patent Grant
Device for automatically changing magnification of camera zoom lens
- Patent number 5,089,841
- Issue date Feb 18, 1992
- Chinon Kabushiki Kaisha
- Masatoshi Yamada
- G02 - OPTICS
Information Patent Grant
Camera data storage apparatus with power cut off protection
- Patent number 5,079,585
- Issue date Jan 7, 1992
- Chinon Kabyshiki Kaisha
- Masatoshi Yamada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Camera zoom lens automatic magnification apparatus
- Patent number 4,878,080
- Issue date Oct 31, 1989
- Chinon Kabushiki Kaisha
- Takamichi Takehana
- G02 - OPTICS