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Ryuji Kondo
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Kodaira, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor device having aligned semiconductor regions and a plu...
Patent number
5,519,244
Issue date
May 21, 1996
Hitachi, Ltd.
Yuji Yatsuda
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor device and method for manufacturing the same
Patent number
5,348,898
Issue date
Sep 20, 1994
Hitachi, Ltd.
Yuji Yatsuda
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for manufacturing a semiconductor device
Patent number
5,252,505
Issue date
Oct 12, 1993
Hitachi, Ltd.
Yuji Yatsuda
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for manufacturing field effect transistors
Patent number
5,114,870
Issue date
May 19, 1992
Hitachi, Ltd.
Yuji Yatsuda
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of forming well regions for field effect transistors utilizi...
Patent number
4,851,364
Issue date
Jul 25, 1989
Hitachi, Ltd.
Yuji Yatsuda
G11 - INFORMATION STORAGE
Information
Patent Grant
Nonvolatile semiconductor memory
Patent number
4,654,828
Issue date
Mar 31, 1987
Hitachi, Ltd.
Takaaki Hagiwara
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of manufacturing field-effect transistors utilizing self-ali...
Patent number
4,586,238
Issue date
May 6, 1986
Hitachi, Ltd.
Yuji Yatsuda
G11 - INFORMATION STORAGE
Information
Patent Grant
Defect-remediable semiconductor integrated circuit memory and spare...
Patent number
4,514,830
Issue date
Apr 30, 1985
Hitachi, Ltd.
Takaaki Hagiwara
G11 - INFORMATION STORAGE
Information
Patent Grant
Nonvolatile MNOS semiconductor memory
Patent number
4,460,980
Issue date
Jul 17, 1984
Hitachi, Ltd.
Takaaki Hagiwara
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for producing a nonvolatile memory device
Patent number
4,264,376
Issue date
Apr 28, 1981
Hitachi, Ltd.
Yuji Yatsuda
G11 - INFORMATION STORAGE