Hiroaki Takehara

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Shiga-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for production of crosslinked polyvinyl acetal resin, and cr...
- Patent number 8,420,298
- Issue date Apr 16, 2013
- Sekisui Chemical Co., Ltd.
- Yuki Hirose
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Toner resin composition and toner
- Patent number 6,489,074
- Issue date Dec 3, 2002
- Sekisui Chemical Co., Ltd.
- Hiroaki Takehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner resin composition and toner
- Patent number 6,190,816
- Issue date Feb 20, 2001
- Sekisui Chemical Co., Ltd.
- Hiroaki Takehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner resin composition and toner prepared therefrom
- Patent number 6,106,988
- Issue date Aug 22, 2000
- Sekisui Chemical Co., Ltd.
- Toshiharu Furukawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PRODUCTION OF CROSSLINKED POLYVINYL ACETAL RESIN, AND CR...
- Publication number 20100112480
- Publication date May 6, 2010
- Yuki Hirose
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...