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last 30 patents
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Patent Grant
Silicon wafer and method for heat-treating silicon wafer
Patent number
8,999,864
Issue date
Apr 7, 2015
Global Wafers Japan Co., Ltd.
Takeshi Senda
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Method of manufacturing single crystal silicon wafer from ingot gro...
Patent number
8,476,149
Issue date
Jul 2, 2013
Global Wafers Japan Co., Ltd.
Hiromichi Isogai
C30 - CRYSTAL GROWTH
Information
Patent Grant
Method for heat treating a silicon wafer
Patent number
8,399,341
Issue date
Mar 19, 2013
Covalent Materials Corporation
Takeshi Senda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of heat treating silicon wafer
Patent number
8,252,700
Issue date
Aug 28, 2012
Covalent Materials Corporation
Takeshi Senda
C30 - CRYSTAL GROWTH
Information
Patent Grant
Manufacturing method for silicon wafer
Patent number
7,977,219
Issue date
Jul 12, 2011
Covalent Materials Corporation
Hiromichi Isogai
C30 - CRYSTAL GROWTH
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR HEAT TREATING A SILICON WAFER
Publication number
20120184091
Publication date
Jul 19, 2012
Covalent Materials Corporation
Takeshi Senda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SILICON WAFER AND METHOD FOR HEAT-TREATING SILICON WAFER
Publication number
20120139088
Publication date
Jun 7, 2012
Covalent Materials Corporation
Takeshi Senda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method of heat treating silicon wafer
Publication number
20100197146
Publication date
Aug 5, 2010
COVALENT MATERIALS CORPORATION
Takeshi Senda
C30 - CRYSTAL GROWTH
Information
Patent Application
MANUFACTURING METHOD FOR SILICON WAFER
Publication number
20100055884
Publication date
Mar 4, 2010
COVALENT MATERIALS CORPORATION
Hiromichi Isogai
C30 - CRYSTAL GROWTH
Information
Patent Application
SILICON WAFER, METHOD FOR MANUFACTURING THE SAME AND METHOD FOR HEA...
Publication number
20100038757
Publication date
Feb 18, 2010
COVALENT MATERIALS CORPORATION
Hiromichi Isogai
C30 - CRYSTAL GROWTH
Information
Patent Application
METHOD OF MANUFACTURING SEMICONDUCTOR SUBSTRATE
Publication number
20090004825
Publication date
Jan 1, 2009
Covalent Materials Corporation
Takeshi Senda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR SUBSTRATE AND MANUFACTURING METHOD THEREOF
Publication number
20080164572
Publication date
Jul 10, 2008
Covalent Materials Corporation
Eiji Toyoda
H01 - BASIC ELECTRIC ELEMENTS