Shoji Kuroishi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image density adjustment method and apparatus
- Patent number 4,256,401
- Issue date Mar 17, 1981
- Ricoh Company, Ltd.
- Itaru Fujimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic copying apparatus
- Patent number 4,176,942
- Issue date Dec 4, 1979
- Ricoh Company, Ltd.
- Susumu Tatsumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY