Akiko Oikawa

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Nakaminato, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electrophotographic toner, production method thereof and electropho...
- Patent number 6,569,588
- Issue date May 27, 2003
- Hitachi, Ltd.
- Akiko Oikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus and process for an electrophotographic process
- Patent number 5,708,939
- Issue date Jan 13, 1998
- Hitachi Ltd.
- Akiko Oikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Controller for roller fixing unit for color electrophotographic app...
- Patent number 5,504,567
- Issue date Apr 2, 1996
- Hitachi, Ltd.
- Toshiya Satoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic image fixing device avoiding offset in the imag...
- Patent number 5,481,349
- Issue date Jan 2, 1996
- Hitachi, Ltd.
- Toshiya Satoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Electrophotographic toner, production method thereof and electropho...
- Publication number 20020110747
- Publication date Aug 15, 2002
- Akiko Oikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY