Shigeki Sawa

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Developing device for an image forming apparatus
- Patent number 5,502,552
- Issue date Mar 26, 1996
- Ricoh Company, Ltd.
- Naoki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device with microfields formed on developer carrier
- Patent number 5,424,814
- Issue date Jun 13, 1995
- Ricoh Company, Ltd.
- Koji Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY