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Tsutomu Amai
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Tokyo, JP
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last 30 patents
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Patent Grant
Method for manufacturing a semiconductor device including pre-oxida...
Patent number
5,731,247
Issue date
Mar 24, 1998
Kabushiki Kaisha Toshiba
Yoshihiro Ueno
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing semiconductor substrate dielectric isolatin...
Patent number
5,213,993
Issue date
May 25, 1993
Kabushiki Kaisha Tobisha
Masanobu Ogino
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Silicon wafer with defined interstitial oxygen concentration
Patent number
5,096,839
Issue date
Mar 17, 1992
Kabushiki Kaisha Toshiba
Tsutomu Amai
C30 - CRYSTAL GROWTH