Kayo Makita

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Numazu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Multi-color electrophotographic image formation method
- Patent number 5,344,732
- Issue date Sep 6, 1994
- Ricoh Company, Ltd.
- Shunichi Chiba
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dry type toner for electrophotography
- Patent number 5,061,588
- Issue date Oct 29, 1991
- Ricoh Company, Ltd.
- Hiroyuki Fushimi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dry type developer for electrophotography
- Patent number 4,980,258
- Issue date Dec 25, 1990
- Ricoh Company, Ltd.
- Mitsuo Aoki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magenta color toner for developing latent electrostatic images in c...
- Patent number 4,933,250
- Issue date Jun 12, 1990
- Ricoh Company Ltd.
- Nobuhiro Nakayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY