Akihiko Kawahara

Person

Nara, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Non-magnetic single component developing device
- Patent number 7,206,539
- Issue date Apr 17, 2007
- Sharp Kabushiki Kaisha
- Akihiko Kawahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Coating fluid for electric charge generating layer, organic electro...
- Patent number 6,472,114
- Issue date Oct 29, 2002
- Sharp Kabushiki Kaisha
- Tatsuhiro Morita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoreceptor, process for production thereof,...
- Patent number 6,136,484
- Issue date Oct 24, 2000
- Sharp Kabushiki Kaisha
- Satoshi Katayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoreceptor, process for production thereof,...
- Patent number 6,136,485
- Issue date Oct 24, 2000
- Sharp Kabushiki Kaisha
- Kazuya Ishida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoreceptor
- Patent number 6,090,514
- Issue date Jul 18, 2000
- Mita Industrial Co., Ltd.
- Mikio Kakui
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoreceptor, process for producing the same,...
- Patent number 6,054,237
- Issue date Apr 25, 2000
- Sharp Kabushiki Kaisha
- Kazuya Ishida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photosenstive material for electrophotography
- Patent number 5,821,021
- Issue date Oct 13, 1998
- Mita Industrial Co., Ltd.
- Akihiko Kawahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photosensitive material for electrophotography
- Patent number 5,656,407
- Issue date Aug 12, 1997
- Mita Industrial Co., Ltd.
- Akihiko Kawahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member having a photosensitive l...
- Patent number 5,336,576
- Issue date Aug 9, 1994
- Mita Industrial Co., Ltd.
- Eiichi Miyamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic member having an azo compound with diphenoquinone
- Patent number 5,288,576
- Issue date Feb 22, 1994
- Mita Industrial Co., Ltd.
- Eiichi Miyamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Bisazo compounds which contain a diphenoquinone tetraazo component...
- Patent number 5,274,084
- Issue date Dec 28, 1993
- Mita Industrial Co., Ltd.
- Eiichi Miyamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive element comprising a surface pro...
- Patent number 5,260,157
- Issue date Nov 9, 1993
- Mita Industrial Co., Ltd.
- Yasufumi Mizuta
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Non-magnetic single component developing device
- Publication number 20050220499
- Publication date Oct 6, 2005
- Sharp Kabushiki Kaisha
- Akihiko Kawahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Electrophotographic photoreceptor and electrophotographic apparatus...
- Publication number 20030073014
- Publication date Apr 17, 2003
- Sayaka Fujita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Coating fluid for electric charge generating layer, organic electro...
- Publication number 20020051921
- Publication date May 2, 2002
- Tatsuhiro Morita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Akihiko Kawahara

Person

Patents Grantslast 30 patents

Non-magnetic single component developing device

Coating fluid for electric charge generating layer, organic electro...

Electrophotographic photoreceptor, process for production thereof,...

Electrophotographic photoreceptor, process for production thereof,...

Electrophotographic photoreceptor

Electrophotographic photoreceptor, process for producing the same,...

Photosenstive material for electrophotography

Photosensitive material for electrophotography

Electrophotographic photosensitive member having a photosensitive l...

Electrophotographic member having an azo compound with diphenoquinone

Bisazo compounds which contain a diphenoquinone tetraazo component...

Electrophotographic photosensitive element comprising a surface pro...

Patents Applicationslast 30 patents

Non-magnetic single component developing device

Electrophotographic photoreceptor and electrophotographic apparatus...

Coating fluid for electric charge generating layer, organic electro...