Kazuhisa Yanagisawa

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Mitaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ferroelectric memory
- Patent number 5,060,191
- Issue date Oct 22, 1991
- Olympus Optical Co., Ltd.
- Tatsuo Nagasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Electrophotographic process and photosensitive screen for use in su...
- Patent number 4,438,186
- Issue date Mar 20, 1984
- Olympus Optical Company Limited
- Eiichi Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic apparatus
- Patent number 4,135,811
- Issue date Jan 23, 1979
- Olympus Optical Company Limited
- Masaji Nishikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY