Shozo Ishikawa

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Electrophotographic photosensitive member
- Patent number 4,931,371
- Issue date Jun 5, 1990
- Canon Kabushiki Kaisha
- Masakazu Matsumoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Function separated photosensitive member having a diphenylamine der...
- Patent number 4,830,944
- Issue date May 16, 1989
- Canon Kabushiki Kaisha
- Shoji Umehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member containing a disazo pigment
- Patent number 4,788,119
- Issue date Nov 29, 1988
- Canon Kabushiki Kaisha
- Masataka Yamashita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member containing disazo compound
- Patent number 4,760,003
- Issue date Jul 26, 1988
- Canon Kabushiki Kaisha
- Masakazu Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photosensitive member for electrophotography
- Patent number 4,743,523
- Issue date May 10, 1988
- Canon Kabushiki Kaisha
- Masataka Yamashita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Trisazo photsensitive member for electrophotography
- Patent number 4,735,882
- Issue date Apr 5, 1988
- Canon Kabushiki Kaisha
- Masataka Yamashita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member comprising disazo pigment
- Patent number 4,702,982
- Issue date Oct 27, 1987
- Canon Kabushiki Kaisha
- Masakazu Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photosensitive member for electrophotography comprising azo pigments
- Patent number 4,666,810
- Issue date May 19, 1987
- Canon Kabushiki Kaisha
- Shoji Umehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member contains disazo photocond...
- Patent number 4,610,943
- Issue date Sep 9, 1986
- Canon Kabushiki Kaisha
- Takao Takiguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member
- Patent number 4,554,231
- Issue date Nov 19, 1985
- Canon Kabushiki Kaisha
- Shozo Ishikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Disazo electrophotographic photosensitive member
- Patent number 4,551,404
- Issue date Nov 5, 1985
- Canon Kabushiki Kaisha
- Masaaki Hiro
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member
- Patent number 4,535,043
- Issue date Aug 13, 1985
- Canon Kabushiki Kaisha
- Shozo Ishikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Recording medium and process employing a photosensitive organic film
- Patent number 4,501,808
- Issue date Feb 26, 1985
- Canon Kabushiki Kaisha
- Kiyoshi Sakai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member with oxadiazole containin...
- Patent number 4,500,619
- Issue date Feb 19, 1985
- Copyer Kabushiki Kaisha
- Shozo Ishikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member comprising disazo compound
- Patent number 4,495,264
- Issue date Jan 22, 1985
- Canon Kabushiki Kaisha
- Hideyuki Takahashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member containing a halogen subs...
- Patent number 4,487,824
- Issue date Dec 11, 1984
- Canon Kabushiki Kaisha
- Kazuharu Katagiri
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Laminate type electrophotographic light-sensitive material
- Patent number 4,485,159
- Issue date Nov 27, 1984
- Copyer Co., Ltd., Canon Inc.
- Katsunori Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic disazo photosensitive member
- Patent number 4,471,040
- Issue date Sep 11, 1984
- Canon Kabushiki Kaisha
- Kazuharu Katagiri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member having a photosensitive l...
- Patent number 4,456,671
- Issue date Jun 26, 1984
- Canon Kabushiki Kaisha
- Minoru Mabuchi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Electrophotographic photosensitive member with pyrazoline charge tr...
- Patent number 4,454,211
- Issue date Jun 12, 1984
- Canon Kabushiki Kaisha
- Yoshio Takasu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member having a hydrazone contai...
- Patent number 4,446,217
- Issue date May 1, 1984
- Canon Kabushiki Kaisha
- Yoshio Takasu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Electrophotographic photosensitive member with disazo or trisazo co...
- Patent number 4,427,753
- Issue date Jan 24, 1984
- Canon Kabushiki Kaisha
- Naoto Fujimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic member having layer containing methylidenyl hyd...
- Patent number 4,423,129
- Issue date Dec 27, 1983
- Canon Kabushiki Kaisha
- Yoshio Takasu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic member with hydrazone or ketazine compounds
- Patent number 4,420,548
- Issue date Dec 13, 1983
- Canon Kabushiki Kaisha
- Kiyoshi Sakai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Electrophotographic light-sensitive media having a dis-azo compound
- Patent number 4,419,428
- Issue date Dec 6, 1983
- Copyer Co., Ltd.
- Kazuharu Katagiri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Disazo photoconductive material and electrophotographic photosensit...
- Patent number 4,418,133
- Issue date Nov 29, 1983
- Canon Kabushiki Kaisha
- Kazuharu Katagiri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Multilayer electrophotographic photosensitive member comprises disa...
- Patent number 4,413,045
- Issue date Nov 1, 1983
- Canon Kabushiki Kaisha
- Shozo Ishikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Disazo electrophotographic photosensitive member
- Patent number 4,399,206
- Issue date Aug 16, 1983
- Canon Kabushiki Kaisha
- Kazuharu Katagiri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member with hydrazone compound
- Patent number 4,399,207
- Issue date Aug 16, 1983
- Canon Kabushiki Kaisha
- Kiyoshi Sakai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member
- Patent number 4,399,208
- Issue date Aug 16, 1983
- Canon Kabushiki Kaisha
- Yoshio Takasu
- C07 - ORGANIC CHEMISTRY

Shozo Ishikawa

Person

Patents Grantslast 30 patents

Electrophotographic photosensitive member

Function separated photosensitive member having a diphenylamine der...

Electrophotographic photosensitive member containing a disazo pigment

Electrophotographic photosensitive member containing disazo compound

Photosensitive member for electrophotography

Trisazo photsensitive member for electrophotography

Electrophotographic photosensitive member comprising disazo pigment

Photosensitive member for electrophotography comprising azo pigments

Electrophotographic photosensitive member contains disazo photocond...

Electrophotographic photosensitive member

Disazo electrophotographic photosensitive member

Electrophotographic photosensitive member

Recording medium and process employing a photosensitive organic film

Electrophotographic photosensitive member with oxadiazole containin...

Electrophotographic photosensitive member comprising disazo compound

Electrophotographic photosensitive member containing a halogen subs...

Laminate type electrophotographic light-sensitive material

Electrophotographic disazo photosensitive member

Electrophotographic photosensitive member having a photosensitive l...

Electrophotographic photosensitive member with pyrazoline charge tr...

Electrophotographic photosensitive member having a hydrazone contai...

Electrophotographic photosensitive member with disazo or trisazo co...

Electrophotographic member having layer containing methylidenyl hyd...

Electrophotographic member with hydrazone or ketazine compounds

Electrophotographic light-sensitive media having a dis-azo compound

Disazo photoconductive material and electrophotographic photosensit...

Multilayer electrophotographic photosensitive member comprises disa...

Disazo electrophotographic photosensitive member

Electrophotographic photosensitive member with hydrazone compound

Electrophotographic photosensitive member