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Yoshiyuki Kawana
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Kanagawa, JP
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Patents Grants
last 30 patents
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Patent Grant
Method for doping impurities, and for producing a semiconductor dev...
Patent number
7,435,668
Issue date
Oct 14, 2008
Sony Corporation
Akio Machida
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Semiconductor device having oxygen doped polycrystalline passivatio...
Patent number
4,176,372
Issue date
Nov 27, 1979
Sony Corporation
Takeshi Matsushita
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
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Patent Application
Method for doping impurities, methods for producing semiconductor d...
Publication number
20050181566
Publication date
Aug 18, 2005
SONY CORPORATION
Akio Machida
H01 - BASIC ELECTRIC ELEMENTS