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Kiyoshi Nagai
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Kodaira, JP
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last 30 patents
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Patent Grant
Method for manufacturing semiconductor integrated circuit device ha...
Patent number
5,444,012
Issue date
Aug 22, 1995
Hitachi, Ltd.
Keiichi Yoshizumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory device having redundancy memory cells for repl...
Patent number
5,373,471
Issue date
Dec 13, 1994
Hitachi, Ltd.
Makoto Saeki
G11 - INFORMATION STORAGE
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Patent Grant
Process for fabricating semiconductor integrated circuit devices
Patent number
5,055,420
Issue date
Oct 8, 1991
Hitachi, Ltd.
Shuji Ikeda
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Fabricating semiconductor devices to prevent alloy spiking
Patent number
4,734,383
Issue date
Mar 29, 1988
Hitachi, Ltd.
Shuji Ikeda
H01 - BASIC ELECTRIC ELEMENTS