Yoshiaki Ouchi

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Patents Grantslast 30 patents

Information Patent Grant
Dynamic Random Access Type Semiconductor Device
- Patent number 5,506,804
- Issue date Apr 9, 1996
- Hitachi, Ltd.
- Kazumasa Yanagisawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Testing method for a semiconductor memory device
- Patent number 5,276,648
- Issue date Jan 4, 1994
- Hitachi, Ltd.
- Kazumasa Yanagisawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Bi-CMOS semiconductor memory device, including improved layout stru...
- Patent number 5,150,325
- Issue date Sep 22, 1992
- Hitachi, Ltd.
- Kazumasa Yanagisawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device
- Patent number 4,562,555
- Issue date Dec 31, 1985
- Hitachi, Ltd.
- Yoshiaki Ouchi
- G11 - INFORMATION STORAGE