Yoshimasa Sawada

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Ushiku-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Roller for electrphotography and production method thereof, and ele...
- Patent number 10,558,149
- Issue date Feb 11, 2020
- Canon Kabushiki Kaisha
- Hirobumi Takahashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Roller for electrophotography and production method thereof, and el...
- Patent number 9,983,516
- Issue date May 29, 2018
- Canon Kabushiki Kaisha
- Hirobumi Takahashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging member including coated and uncoated metal oxide particles
- Patent number 7,366,448
- Issue date Apr 29, 2008
- Canon Kabushiki Kaisha
- Tomohito Taniguchi
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
ROLLER FOR ELECTROPHOTOGRAPHY AND PRODUCTION METHOD THEREOF, AND EL...
- Publication number 20180239279
- Publication date Aug 23, 2018
- Canon Kabushiki Kaisha
- Hirobumi Takahashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ROLLER FOR ELECTROPHOTOGRAPHY AND PRODUCTION METHOD THEREOF, AND EL...
- Publication number 20160223952
- Publication date Aug 4, 2016
- Canon Kabushiki Kaisha
- Hirobumi Takahashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Charging member, process cartridge, and electrophotographic apparatus
- Publication number 20060029428
- Publication date Feb 9, 2006
- Canon Kabushiki Kaisha
- Tomohito Taniguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY