Koji KAWAHARA

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cooling device and image forming apparatus incorporating same
- Patent number 9,170,561
- Issue date Oct 27, 2015
- Ricoh Company, Ltd.
- Hiroaki Miyagawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and cooling device for developer mixing con...
- Patent number 8,886,079
- Issue date Nov 11, 2014
- Ricoh Company, Ltd.
- Koji Kawahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a control device which is rotatably...
- Patent number 7,822,359
- Issue date Oct 26, 2010
- Ricoh Company, Ltd.
- Koji Kawahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
COOLING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20140212164
- Publication date Jul 31, 2014
- RICOH COMPANY, LTD.
- Hiroaki MIYAGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20130272743
- Publication date Oct 17, 2013
- Koji KAWAHARA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20080056761
- Publication date Mar 6, 2008
- Koji KAWAHARA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY