Hiroshi Yamada

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Ichikawa, JA

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Patents Grantslast 30 patents

Information Patent Grant
Enlarger-printer
- Patent number 4,043,661
- Issue date Aug 23, 1977
- Ricoh Co., Ltd.
- Hiroshi Yamada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Reader-printer apparatus with multiple supply rolls and charging de...
- Patent number 3,992,089
- Issue date Nov 16, 1976
- Ricoh Co., Ltd.
- Hiroshi Hirose
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Apparatus for preparing electrophotographic microfilm
- Patent number 3,964,828
- Issue date Jun 22, 1976
- Ricoh Co., Ltd.
- Hiroshi Yamada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Automatic cartridge tape draw-out device
- Patent number 3,951,357
- Issue date Apr 20, 1976
- Ricoh Co., Ltd.
- Hiroshi Yamada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY