Koutarou Yamada

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Hitachinaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus and image forming method
- Patent number 8,532,545
- Issue date Sep 10, 2013
- Ricoh Company, Limited
- Tomonari Hokkyoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including counter-rotating developing rolle...
- Patent number 8,406,660
- Issue date Mar 26, 2013
- Ricoh Company, Ltd.
- Tomonari Hokkyoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic apparatus having a printing density controller...
- Patent number 6,377,766
- Issue date Apr 23, 2002
- Hitachi Koki Co., Ltd.
- Hiroshi Ueno
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing unit for electro-photographic apparatus
- Patent number 5,579,091
- Issue date Nov 26, 1996
- Hitachi Koki Co., Ltd.
- Koutarou Yamada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
- Publication number 20110123233
- Publication date May 26, 2011
- Tomonari HOKKYOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND CONTROLLING METHOD
- Publication number 20100209127
- Publication date Aug 19, 2010
- Tomonari HOKKYOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY