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Yukiharu Akiyama
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Fukuyama-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Semiconductor memory device and manufacturing method thereof
Patent number
7,256,085
Issue date
Aug 14, 2007
Sharp Kabushiki Kaisha
Kazuhiro Hata
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for manufacturing semiconductor memory device
Patent number
6,066,531
Issue date
May 23, 2000
Sharp Kabushiki Kaisha
Yukiharu Akiyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for manufacturing a semiconductor device having a triple-wel...
Patent number
5,943,595
Issue date
Aug 24, 1999
Sharp Kabushiki Kaisha
Yukiharu Akiyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for forming field oxide film
Patent number
5,880,008
Issue date
Mar 9, 1999
Sharp Kabushiki Kaisha
Yukiharu Akiyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electrically erasable PROM (E.sup.2 PROM) with thin film peripheral...
Patent number
5,493,139
Issue date
Feb 20, 1996
Sharp Kabushiki Kaisha
Yukiharu Akiyama
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Semiconductor memory device and manufacturing method thereof
Publication number
20050199946
Publication date
Sep 15, 2005
Sharp Kabushiki Kaisha
Kazuhiro Hata
H01 - BASIC ELECTRIC ELEMENTS