Tomoo Koumura

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Chuo-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polishing pad
- Patent number 7,217,179
- Issue date May 15, 2007
- JSR Corporation
- Fujio Sakurai
- B24 - GRINDING POLISHING
Information Patent Grant
Composition for forming polishing pad, crosslinked body for polishi...
- Patent number 6,645,264
- Issue date Nov 11, 2003
- JSR Corporation
- Kou Hasegawa
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
Polishing pad
- Publication number 20060084365
- Publication date Apr 20, 2006
- JSR Corporation
- Fujio Sakurai
- B24 - GRINDING POLISHING
Information Patent Application
Polishing pad and method of manufacturing semiconductor devices
- Publication number 20050227489
- Publication date Oct 13, 2005
- Gaku Minamihara
- B24 - GRINDING POLISHING
Information Patent Application
Polishing pad and multi-layer polishing pad
- Publication number 20040014413
- Publication date Jan 22, 2004
- JSR Corporation
- Nobuo Kawahashi
- B24 - GRINDING POLISHING
Information Patent Application
Composition for forming polishing pad, crosslinked body for polishi...
- Publication number 20020078632
- Publication date Jun 27, 2002
- JSR Corporation
- Kou Hasegawa
- B24 - GRINDING POLISHING