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Chiba, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Powder storage container and image forming apparatus in which a gri...
Patent number
9,116,468
Issue date
Aug 25, 2015
Ricoh Company, Ltd.
Seiji Terazawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic image forming apparatus and process cartridge
Patent number
8,064,795
Issue date
Nov 22, 2011
Ricoh Company, Ltd.
Keisuke Shimoyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoconductor having charge blocking and moire...
Patent number
7,871,747
Issue date
Jan 18, 2011
Ricoh Company, Ltd.
Keisuke Shimoyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image bearing member and image forming method using thereof, and im...
Patent number
7,862,969
Issue date
Jan 4, 2011
Ricoh Company, Ltd.
Yasuo Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming method, and image forming apparatus and process cartr...
Patent number
7,662,533
Issue date
Feb 16, 2010
Ricoh Company Limited
Kohichi Ohshima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Process cartridge, image forming apparatus, and image forming process
Patent number
7,550,238
Issue date
Jun 23, 2009
Ricoh Company, Ltd.
Kohichi Ohshima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and process cartridge
Patent number
7,517,625
Issue date
Apr 14, 2009
Ricoh Company, Ltd.
Yasuo Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
POWDER STORAGE CONTAINER AND IMAGE FORMING APPARATUS
Publication number
20140029973
Publication date
Jan 30, 2014
Seiji Terazawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING APPARATUS, IMAGE...
Publication number
20110111335
Publication date
May 12, 2011
Keisuke Shimoyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE
Publication number
20100260515
Publication date
Oct 14, 2010
Keisuke Shimoyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE BEARING MEMBER AND IMAGE FORMING METHOD USING THEREOF, AND IM...
Publication number
20070212625
Publication date
Sep 13, 2007
Yasuo Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Electrophotographic image forming apparatus and process cartridge
Publication number
20070059039
Publication date
Mar 15, 2007
Keisuke Shimoyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Electrophotographic photoconductor, image forming apparatus, image...
Publication number
20070059619
Publication date
Mar 15, 2007
Keisuke Shimoyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming method, and image forming apparatus and process cartr...
Publication number
20060093955
Publication date
May 4, 2006
Kohichi Ohshima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming process, image forming apparatus, and process cartridge
Publication number
20060068308
Publication date
Mar 30, 2006
Kohichi Ohshima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus and process cartridge
Publication number
20060051689
Publication date
Mar 9, 2006
Yasuo Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming method, image forming apparatus and process cartridge...
Publication number
20060014096
Publication date
Jan 19, 2006
Kohichi Ohshima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming method, and image forming apparatus and process cartr...
Publication number
20050287465
Publication date
Dec 29, 2005
Kohichi Ohshima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Process cartridge, image forming apparatus, and image forming process
Publication number
20050238987
Publication date
Oct 27, 2005
Kohichi Ohshima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY