Kazuyoshi Oka

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Maebashi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of making carrier for use in electrophotographic developers
- Patent number 4,751,164
- Issue date Jun 14, 1988
- Kanto Denka Kogyo Co., Ltd.
- Mitsuhiro Katayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier for use in electrophotographic developers
- Patent number 4,732,835
- Issue date Mar 22, 1988
- Kanto Denka Kogyo Co., Ltd.
- Mitsuhiro Katayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier for use in electrophotographic developers
- Patent number 4,663,262
- Issue date May 5, 1987
- Kanto Denka Kogyo Co., Ltd.
- Kazuyoshi Oka
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Two-component resin system of acrylic and diene polymers for coatin...
- Patent number 4,503,136
- Issue date Mar 5, 1985
- Kanto Denka Kogyo Co., Ltd.
- Kenkichi Hara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Resin-coated carrier for use in two-component electrophotographic d...
- Patent number 4,486,502
- Issue date Dec 4, 1984
- Kanto Denka Kogyo Co. Ltd.
- Kenkichi Hara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY