Hiroichi Shinohara

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Variable focus lens for image reproduction
- Patent number 4,919,524
- Issue date Apr 24, 1990
- Ricoh Company, Ltd.
- Hiroichi Shinohara
- G02 - OPTICS
Information Patent Grant
Gaussian lens
- Patent number 4,671,627
- Issue date Jun 9, 1987
- Ricoh Company, Ltd.
- Hiroichi Shinohara
- G02 - OPTICS
Information Patent Grant
Wide angle copying lens with high aperture efficiency
- Patent number 4,490,019
- Issue date Dec 25, 1984
- Ricoh Company, Ltd.
- Hiroichi Shinohara
- G02 - OPTICS
Information Patent Grant
Tessor type lens systems for facsimile
- Patent number 4,415,241
- Issue date Nov 15, 1983
- Ricoh Co., Ltd.
- Hiroichi Shinohara
- G02 - OPTICS
Information Patent Grant
Reproduction lens having a six group six element composition a larg...
- Patent number 4,345,823
- Issue date Aug 24, 1982
- Kabushiki Kaisha Ricoh
- Hiroichi Shinohara
- G02 - OPTICS