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Yasushiro Nishioka
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Tokyo, JP
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last 30 patents
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Patent Grant
Process for producing a semiconductor device
Patent number
5,079,191
Issue date
Jan 7, 1992
Hitachi, Ltd.
Hiroshi Shinriki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor capacitor device with dual dielectric
Patent number
4,937,650
Issue date
Jun 26, 1990
Hitachi, Ltd.
Hiroshi Shinriki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory device
Patent number
4,809,052
Issue date
Feb 28, 1989
Hitachi, Ltd.
Yasushiro Nishioka
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor device
Patent number
4,636,833
Issue date
Jan 13, 1987
Hitachi, Ltd.
Yasushiro Nishioka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Three-dimensional semiconductor device with thin film monocrystalli...
Patent number
4,570,175
Issue date
Feb 11, 1986
Hitachi, Ltd.
Masanobu Miyao
H01 - BASIC ELECTRIC ELEMENTS