Shigeto Ohta

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Tokyo, JP

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Patents Grantslast 30 patents

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 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
Electrophotographic light-sensitive disazo compounds having dipheny...
- Patent number 4,359,513
- Issue date Nov 16, 1982
- Copyer Co., Ltd.
- Kazuharu Katagiri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Disazo electrophotographic light-sensitive media
- Patent number 4,359,515
- Issue date Nov 16, 1982
- Copyer Co., Ltd.
- Kazuharu Katagiri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic media with benzoxazole group containing dis-azo...
- Patent number 4,356,243
- Issue date Oct 26, 1982
- Copyer Co., Ltd.
- Shozo Ishikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatic recording material and method for the production thereof
- Patent number 4,268,595
- Issue date May 19, 1981
- Copyer Co., Ltd.
- Kazuharu Katagiri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY