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Hirohisa Usuami
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Fuchu, JP
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last 30 patents
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Patent Grant
Process for fabricating a semiconductor integrated circuit device h...
Patent number
5,661,061
Issue date
Aug 26, 1997
Hitachi, Ltd.
Hirohisa Usuami
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Apparatus for plasma processing
Patent number
4,985,109
Issue date
Jan 15, 1991
Hitachi, Ltd.
Toru Otsubo
H01 - BASIC ELECTRIC ELEMENTS