Hiroyuki Yoshikawa

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Numazu-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Carrier for developer for developing electrostatic latent image, im...
- Patent number 7,179,577
- Issue date Feb 20, 2007
- Ricoh Company, Ltd.
- Hiroaki Matsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier for developer for developing electrostatic latent image, im...
- Patent number 7,166,404
- Issue date Jan 23, 2007
- Ricoh Company, Ltd.
- Hiroaki Matsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Two-component developer, image forming apparatus, and image forming...
- Patent number 6,790,575
- Issue date Sep 14, 2004
- Ricoh Company, Ltd.
- Fumihiro Sasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Carrier for developer for developing electrostatic latent image, im...
- Publication number 20060073405
- Publication date Apr 6, 2006
- Hiroaki Matsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Method and apparatus for producing toner for electrophotography
- Publication number 20060039234
- Publication date Feb 23, 2006
- Junya Koeda
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method and apparatus for producing toner for electrophotography
- Publication number 20040097623
- Publication date May 20, 2004
- Junya Koeda
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Two-component developer, image forming apparatus, and image forming...
- Publication number 20030073021
- Publication date Apr 17, 2003
- Fumihiro Sasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Carrier for developer for developing electrostatic latent image, im...
- Publication number 20020177060
- Publication date Nov 28, 2002
- Hiroaki Matsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY