Sakuji Watanabe

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Yono, JA

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Patents Grantslast 30 patents

Information Patent Grant
Flashlight information signal generating device for a camera
- Patent number 4,089,013
- Issue date May 9, 1978
- Nippon Kogaku K.K.
- Hiroshi Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Metering device for cameras
- Patent number 4,045,142
- Issue date Aug 30, 1977
- Nippon Kogaku K.K.
- Sakuji Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Automatic polarization analyzer device
- Patent number 3,992,104
- Issue date Nov 16, 1976
- Nippon Kogaku K.K.
- Sakuji Watanabe
- G01 - MEASURING TESTING
Information Patent Grant
Automatic polarization analyzing device
- Patent number 3,988,067
- Issue date Oct 26, 1976
- Nippon Kogaku K.K.
- Tadaaki Yamamoto
- G01 - MEASURING TESTING