Kayoko Nagai

Follow

Person

Numazu, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Liquid developer for electrostatic electrophotography
- Patent number 5,759,733
- Issue date Jun 2, 1998
- Ricoh Company, Ltd.
- Kazuo Tsubuko
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer for electrophotography
- Patent number 4,855,207
- Issue date Aug 8, 1989
- Ricoh Company, Ltd.
- Kazuo Tsubuko
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Non-aqueous type resin dispersion and electrophotographic developer...
- Patent number 4,764,447
- Issue date Aug 16, 1988
- Ricoh Co., Ltd.
- Kazuo Tsubuko
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Liquid developer for electrophotography
- Patent number 4,690,881
- Issue date Sep 1, 1987
- Ricoh Co., Ltd.
- Kayoko Nagai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY