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Eiji Ishikawa
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Okazaki-city, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method for etching and apparatus for etching
Patent number
7,642,194
Issue date
Jan 5, 2010
Denso Corporation
Yuji Kato
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device having three-dimensional construction and meth...
Patent number
7,541,257
Issue date
Jun 2, 2009
Denso Corporation
Eiji Ishikawa
B81 - MICRO-STRUCTURAL TECHNOLOGY
Information
Patent Grant
Method for manufacturing a semiconductor device having a trench and...
Patent number
6,797,588
Issue date
Sep 28, 2004
Denso, Corporation
Eiji Ishikawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of forming a trench with a rounded bottom in a semiconductor...
Patent number
6,521,538
Issue date
Feb 18, 2003
Denso Corporation
Hajime Soga
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Integrated gate bipolar transistor and method of manufacturing the...
Patent number
6,482,701
Issue date
Nov 19, 2002
Denso Corporation
Eiji Ishikawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Dry etching method for semiconductor substrate
Patent number
6,090,718
Issue date
Jul 18, 2000
Denso Corporation
Hajime Soga
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Semiconductor device having three-dimensional construction and meth...
Publication number
20070066052
Publication date
Mar 22, 2007
DENSO CORPORATION
Eiji Ishikawa
B81 - MICRO-STRUCTURAL TECHNOLOGY
Information
Patent Application
Method for etching and apparatus for etching
Publication number
20070048954
Publication date
Mar 1, 2007
DENSO CORPORATION
Yuji Kato
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor device and method for manufacturing semiconductor device
Publication number
20020140026
Publication date
Oct 3, 2002
Eiji Ishikawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method for manufacturing semiconductor device and insulated gate ty...
Publication number
20010023960
Publication date
Sep 27, 2001
Hajime Soga
H01 - BASIC ELECTRIC ELEMENTS