Tadahide Sawamura

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus and its control system having a single devi...
- Patent number 5,596,395
- Issue date Jan 21, 1997
- Ricoh Company, Ltd.
- Tadahide Sawamura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color adjustment apparatus for color copying machine
- Patent number 5,012,299
- Issue date Apr 30, 1991
- Ricoh Company, Ltd.
- Tadahide Sawamura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and control system therefor
- Patent number 4,872,037
- Issue date Oct 3, 1989
- Ricoh Company, Ltd.
- Nobuo Kasahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 4,766,463
- Issue date Aug 23, 1988
- Ricoh Company, Ltd.
- Masayoshi Watanuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Control system for color copier
- Patent number 4,733,269
- Issue date Mar 22, 1988
- Ricoh Company, Ltd.
- Nobuo Kasahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY