Kenichiro Shiozawa

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polishing cloth
- Patent number 5,510,175
- Issue date Apr 23, 1996
- Chiyoda Co., Ltd.
- Kenichiro Shiozawa
- B24 - GRINDING POLISHING
Information Patent Grant
Polishing pad for semiconductor wafers
- Patent number 4,954,141
- Issue date Sep 4, 1990
- Showa Denko Kabushiki Kaisha
- Masahiro Takiyama
- B24 - GRINDING POLISHING