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Sigeru Morita
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Tokyo, JP
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last 30 patents
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Patent Grant
A method of manufacturing semiconductor elements-isolating silicon...
Patent number
4,746,625
Issue date
May 24, 1988
Kabushiki Kaisha Toshiba
Sigeru Morita
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Method of increasing the thickness of a field oxide
Patent number
4,721,687
Issue date
Jan 26, 1988
Kabushiki Kaisha Toshiba
Masakazu Kakumu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing nonvolatile semiconductor memory device by...
Patent number
4,642,881
Issue date
Feb 17, 1987
Kabushiki Kaisha Toshiba
Naohiro Matsukawa
H01 - BASIC ELECTRIC ELEMENTS