Yoshio Hirayama

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Tokyo-To, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of modifying the surface of plastic substrate
- Patent number 6,913,685
- Issue date Jul 5, 2005
- Unip Corporation Co., Ltd.
- Masao Kawaguchi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method of finishing glass substrate
- Patent number 6,461,445
- Issue date Oct 8, 2002
- Unip Corporation Co., Ltd.
- Yoshio Hirayama
- B08 - CLEANING
Information Patent Grant
Aluminum and aluminum alloy radiator for semiconductor device and p...
- Patent number 5,892,278
- Issue date Apr 6, 1999
- Dai Nippon Printingco., Ltd.
- Hideo Horita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Process of producing magnetic recording media
- Patent number 4,548,682
- Issue date Oct 22, 1985
- Nippon Light Metal Company Limited
- Koichi Yoshida
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Aluminum substrate for magnetic recording media
- Patent number 4,540,449
- Issue date Sep 10, 1985
- Nippon Light Metal Company Limited
- Koichi Yoshida
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process of producing aluminum substrate for magnetic recording media
- Patent number 4,507,179
- Issue date Mar 26, 1985
- Nippon Light Metal Company Limited
- Koichi Yoshida
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR

Patents Applicationslast 30 patents

Information Patent Application
Method of modifying the surface of plastic substrate
- Publication number 20030230826
- Publication date Dec 18, 2003
- Unip Corporation Co., Ltd.
- Masao Kawaguchi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...