Hiroyoshi Matsumoto

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Patents Grantslast 30 patents

Information Patent Grant
Fixing device and image forming apparatus provided with fixing device
- Patent number 7,406,287
- Issue date Jul 29, 2008
- Ricoh Printing Systems, Ltd.
- Hiroyoshi Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with transfer bias inverting function
- Patent number 6,829,449
- Issue date Dec 7, 2004
- Hitachi Printing Solutions, Ltd.
- Hiroyoshi Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electro-photographic developing unit
- Patent number 6,813,462
- Issue date Nov 2, 2004
- Hitachi Printing Solutions, Ltd.
- Teruaki Mitsuya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic apparatus
- Patent number 5,923,933
- Issue date Jul 13, 1999
- Hitachi Koki Co., Ltd.
- Masayasu Anzai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS PROVIDED WITH FIXING DEVICE
- Publication number 20070196145
- Publication date Aug 23, 2007
- Hiroyoshi MATSUMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20040052541
- Publication date Mar 18, 2004
- HITACHI PRINTING SOLUTIONS, LTD.
- Hiroyoshi Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developing unit and electro-photographic apparatus
- Publication number 20030143001
- Publication date Jul 31, 2003
- HITACHI PRINTING SOLUTIONS, LTD.
- Teruaki Mitsuya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Electrostatic recording method and electrostatic recording apparatus
- Publication number 20010010768
- Publication date Aug 2, 2001
- Yuji Furuya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY