Kohei KATAYAMA

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Wakayama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Toner for electrophotography
- Patent number 10,345,728
- Issue date Jul 9, 2019
- Kao Corporation
- Hideaki Kondo
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Electrophotography toner
- Patent number 10,061,217
- Issue date Aug 28, 2018
- Kao Corporation
- Shogo Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for producing positively chargeable toner
- Patent number 9,470,991
- Issue date Oct 18, 2016
- Kao Corporation
- Kohei Katayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner
- Patent number 8,221,949
- Issue date Jul 17, 2012
- Kao Corporation
- Hisakazu Tajima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
TONER FOR ELECTROPHOTOGRAPHY
- Publication number 20180348656
- Publication date Dec 6, 2018
- KAO CORPORATION
- Hideaki KONDO
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
ELECTROPHOTOGRAPHY TONER
- Publication number 20170363981
- Publication date Dec 21, 2017
- KAO CORPORATION
- Shogo WATANABE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
METHOD FOR PRODUCING POSITIVELY CHARGEABLE TONER
- Publication number 20150111143
- Publication date Apr 23, 2015
- KAO CORPORATION
- Kohei KATAYAMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER
- Publication number 20100136469
- Publication date Jun 3, 2010
- KAO CORPORATION
- Hisakazu TAJIMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY