Keizo Hirai

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Hitachi-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
CMP abrasive, liquid additive for CMP abrasive and method for polis...
- Patent number 7,163,644
- Issue date Jan 16, 2007
- Hitachi Chemical Company, Ltd.
- Toshihiko Akahori
- B24 - GRINDING POLISHING
Information Patent Grant
CMP abrasive, liquid additive for CMP abrasive and method for polis...
- Patent number 6,783,434
- Issue date Aug 31, 2004
- Hitachi Chemical Company, Ltd.
- Toshihiko Akahori
- B24 - GRINDING POLISHING
Information Patent Grant
Thermoresistance adhesive and semiconductor device using the same
- Patent number 6,372,859
- Issue date Apr 16, 2002
- Hitachi Chemical Company, Ltd.
- Touichi Sakata
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Electric circuit device having circuit conductors using an electroc...
- Patent number 6,042,933
- Issue date Mar 28, 2000
- Hitachi Chemical Company, Ltd.
- Keizo Hirai
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Electroconductive paste
- Patent number 5,840,432
- Issue date Nov 24, 1998
- Hitachi Chemical Company, Ltd.
- Keizo Hirai
- B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

Information Patent Application
CMP abrasive, liquid additive for CMP abrasive and method for polis...
- Publication number 20060197054
- Publication date Sep 7, 2006
- Hitachi Chemical Co., Ltd.
- Toshihiko Akahori
- B24 - GRINDING POLISHING
Information Patent Application
CMP abrasive, liquid additive for CMP abrasive and method for polis...
- Publication number 20060186372
- Publication date Aug 24, 2006
- Hitachi Chemical Co., Ltd.
- Toshihiko Akahori
- B24 - GRINDING POLISHING
Information Patent Application
CMP abrasive, liquid additive for CMP abrasive and method for polis...
- Publication number 20050269295
- Publication date Dec 8, 2005
- Hitachi Chemical Company Ltd.
- Toshihiko Akahori
- B24 - GRINDING POLISHING
Information Patent Application
CMP abrasive, liquid additive for CMP abrasive and method for polis...
- Publication number 20050118820
- Publication date Jun 2, 2005
- Hitachi Chemical Company Ltd.
- Toshihiko Akahori
- B24 - GRINDING POLISHING
Information Patent Application
CMP abrasive, liquid additive for CMP abrasive and method for polis...
- Publication number 20040147206
- Publication date Jul 29, 2004
- Hitachi Chemical Company Ltd.
- Toshihiko Akahori
- B24 - GRINDING POLISHING