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Hirobumi Takahashi
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Ushiku-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Charging roller
Patent number
7,283,771
Issue date
Oct 16, 2007
Canon Kasei Kabushiki Kaisha
Hirobumi Takahashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Charging roller featuring specified ratio of storage elastic modulu...
Patent number
7,209,683
Issue date
Apr 24, 2007
Canon Kasei Kabushiki Kaisha
Hiroshi Abe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Conductive roller, and process cartridge and electrophotographic ap...
Patent number
7,171,142
Issue date
Jan 30, 2007
Canon Kasei Kabushiki Kaisha
Tomoya Kawakami
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Charging roller, process cartridge and electrophotographic apparatus
Patent number
7,171,141
Issue date
Jan 30, 2007
Canon Kasei Kabushiki Kaisha
Hiroshi Abe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Charging roller including a conductive cover layer being formed of...
Patent number
6,771,920
Issue date
Aug 3, 2004
Canon Kasei Kabushiki Kaisha
Hiroshi Abe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
Charging roller, process cartridge, and electrophotographic apparatus
Publication number
20060204280
Publication date
Sep 14, 2006
Canon Kasei Kabushiki Kaisha
Hiroshi Abe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Conductive roller, and process cartridge and electrophotographic ap...
Publication number
20060165439
Publication date
Jul 27, 2006
Canon Kasei Kabushiki Kaisha
Tomoya Kawakami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Charging roller
Publication number
20060062597
Publication date
Mar 23, 2006
Canon Kasei Kabushiki Kaisha
Hirobumi Takahashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Charging roller, process cartridge and electrophotographic apparatus
Publication number
20040197115
Publication date
Oct 7, 2004
Canon Kasei Kabushiki Kaisha
Hiroshi Abe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Charging roller, process cartridge and electrophotographic apparatus
Publication number
20030161664
Publication date
Aug 28, 2003
Canon Kasei Kabushiki Kaisha
Hiroshi Abe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY