Kazuya Ookubo

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Silicon wafer manufacturing method eliminating final mirror-polishi...
- Patent number 5,744,401
- Issue date Apr 28, 1998
- Toshiba Ceramics Co., Ltd.
- Hiroshi Shirai
- H01 - BASIC ELECTRIC ELEMENTS