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Masaro Tamatsuka
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Gunma, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Anodic-oxidation equipment, anodic-oxidation method, and method for...
Patent number
11,248,306
Issue date
Feb 15, 2022
Shin-Etsu Handotai Co., Ltd.
Tsuyoshi Ohtsuki
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Method for preparing nitrogen-doped annealed wafer and nitrogen-dop...
Patent number
7,326,658
Issue date
Feb 5, 2008
Shin-Etsu Handotai Co., Ltd.
Makoto Iida
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of producing annealed wafer and annealed wafer
Patent number
7,189,293
Issue date
Mar 13, 2007
Shin-Etsu Handotai Co., Ltd.
Norihiro Kobayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of producing annealed wafer and annealed wafer
Patent number
7,153,785
Issue date
Dec 26, 2006
Shin-Etsu Handotai Co., Ltd.
Norihiro Kobayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of producing silicon wafer and silicon wafer
Patent number
7,147,711
Issue date
Dec 12, 2006
Shin-Etsu Handotai Co., Ltd.
Masaro Tamatsuka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for heat treatment of silicon wafers and silicon wafer
Patent number
7,011,717
Issue date
Mar 14, 2006
Shin-Etsu Handotai Co., Ltd.
Norihiro Kobayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for manufacturing silicon wafer
Patent number
6,878,645
Issue date
Apr 12, 2005
Shin-Etsu Handotai Co., Ltd.
Norihiro Kobayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Annealed wafer manufacturing method and annealed wafer
Patent number
6,841,450
Issue date
Jan 11, 2005
Shin-Etsu Handotai Co., Ltd.
Norihiro Kobayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for heat treatment of silicon wafers and silicon wafer
Patent number
6,809,015
Issue date
Oct 26, 2004
Shin-Etsu Handotai Co., Ltd.
Norihiro Kobayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for manufacturing single-crystal-silicon wafers
Patent number
6,805,743
Issue date
Oct 19, 2004
Shin-Etsu Handotai Co., Ltd.
Norihiro Kobayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Silicon single crystal wafer and manufacturing process therefor
Patent number
6,802,899
Issue date
Oct 12, 2004
Shin-Etsu Handotai Co., Ltd.
Masaro Tamatsuka
C30 - CRYSTAL GROWTH
Information
Patent Grant
Method of producing a bonded wafer and the bonded wafer
Patent number
6,680,260
Issue date
Jan 20, 2004
Shin-Etsu Handotai Co., Ltd.
Shoji Akiyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Production method for annealed wafer
Patent number
6,670,261
Issue date
Dec 30, 2003
Shin-Etsu Handotai Co., Ltd.
Shoji Akiyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Silicon wafer for epitaxial wafer, epitaxial wafer, and method of m...
Patent number
6,626,994
Issue date
Sep 30, 2003
Shin-Etsu Handotai Co., Ltd.
Akihiro Kimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Silicon wafer
Patent number
6,599,603
Issue date
Jul 29, 2003
Shin-Etsu Handotai Co., Ltd.
Masahiro Kato
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for thermally annealing silicon wafer and silicon wafer
Patent number
6,573,159
Issue date
Jun 3, 2003
Shin-Etsu Handotai Co., Ltd.
Norihiro Kobayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of producing a bonded wafer and the bonded wafer
Patent number
6,492,682
Issue date
Dec 10, 2002
Shin-Etsu Handotal Co., Ltd.
Shoji Akiyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Silicon single crystal wafer, epitaxial silicon wafer, and methods...
Patent number
6,478,883
Issue date
Nov 12, 2002
Shin-Etsu Handotai Co., Ltd.
Masaro Tamatsuka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for producing silicon single crystal wafer and silicon singl...
Patent number
6,413,310
Issue date
Jul 2, 2002
Shin-Etsu Handotai Co., Ltd.
Masaro Tamatsuka
C30 - CRYSTAL GROWTH
Information
Patent Grant
Silicon single crystal wafer and method for producing silicon singl...
Patent number
6,299,982
Issue date
Oct 9, 2001
Shin-Etsu Handotai Co., Ltd.
Masaro Tamatsuka
C30 - CRYSTAL GROWTH
Information
Patent Grant
Method for producing silicon single crystal wafer for particle moni...
Patent number
6,291,874
Issue date
Sep 18, 2001
Shin-Etsu Handotai Co., Ltd.
Masaro Tamatsuka
C30 - CRYSTAL GROWTH
Information
Patent Grant
Silicon single crystal wafer having few defects wherein nitrogen is...
Patent number
6,261,361
Issue date
Jul 17, 2001
Shin-Etsu Handotai Co., Ltd.
Makoto Iida
C30 - CRYSTAL GROWTH
Information
Patent Grant
Method for producing SOI substrate and SOI substrate
Patent number
6,224,668
Issue date
May 1, 2001
Shin-Etsu Handotai Co., Ltd.
Masaro Tamatsuka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for producing low defect silicon single crystal doped with n...
Patent number
6,197,109
Issue date
Mar 6, 2001
Shin-Etsu Handotai Co., Ltd.
Makoto Iida
C30 - CRYSTAL GROWTH
Information
Patent Grant
Method for producing silicon single crystal wafer and silicon singl...
Patent number
6,191,009
Issue date
Feb 20, 2001
Shin-Etsu Handotai Co., Ltd.
Masaro Tamatsuka
C30 - CRYSTAL GROWTH
Information
Patent Grant
Method for producing an epitaxial silicon single crystal wafer and...
Patent number
6,162,708
Issue date
Dec 19, 2000
Shin-Etsu Handotai Co., Ltd.
Masaro Tamatsuka
C30 - CRYSTAL GROWTH
Information
Patent Grant
Method for producing a silicon single crystal wafer and a silicon s...
Patent number
6,139,625
Issue date
Oct 31, 2000
Shin-Etsu Handotai Co., Ltd.
Masaro Tamatsuka
C30 - CRYSTAL GROWTH
Information
Patent Grant
Silicon single crystal wafer having few defects wherein nitrogen is...
Patent number
6,077,343
Issue date
Jun 20, 2000
Shin-Etsu Handotai Co., Ltd.
Makoto Iida
C30 - CRYSTAL GROWTH
Information
Patent Grant
Determining carbon concentration in silicon single crystal by FT-IR
Patent number
5,444,246
Issue date
Aug 22, 1995
Shin-Etsu Handotai Co., Ltd.
Yutaka Kitagawara
G01 - MEASURING TESTING
Information
Patent Grant
Method and apparatus for determination of interstitial oxygen conce...
Patent number
5,386,118
Issue date
Jan 31, 1995
Shin-Etsu Handotai Co., Ltd.
Yutaka Kitagawara
C30 - CRYSTAL GROWTH
Patents Applications
last 30 patents
Information
Patent Application
ANODIC-OXIDATION EQUIPMENT, ANODIC-OXIDATION METHOD, AND METHOD FOR...
Publication number
20210238762
Publication date
Aug 5, 2021
Shin-Etsu Handotai Co., Ltd.
Tsuyoshi OHTSUKI
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
Method for heat treatment of silicon wafers and silicon wafer
Publication number
20050025691
Publication date
Feb 3, 2005
Shin-Etsu Handotai Co., Ltd.
Norihiro Kobayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Production method for anneal wafer and anneal wafer
Publication number
20040231759
Publication date
Nov 25, 2004
Norihiro Kobayashi
C30 - CRYSTAL GROWTH
Information
Patent Application
Production method for anneal wafer and anneal wafer
Publication number
20040192071
Publication date
Sep 30, 2004
Norihiro Kobayashi
C30 - CRYSTAL GROWTH
Information
Patent Application
Method for manufacturing silicon wafer
Publication number
20040023518
Publication date
Feb 5, 2004
Norihiro Kobayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method of producing silicon wafer and silicon wafer
Publication number
20040003769
Publication date
Jan 8, 2004
Masaro Tamatsuka
C30 - CRYSTAL GROWTH
Information
Patent Application
Silicon boat with protective film, method of manufacture thereof, a...
Publication number
20030196588
Publication date
Oct 23, 2003
Norihiro Kobayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method for manufacturing single-crystal-silicon wafers
Publication number
20030164139
Publication date
Sep 4, 2003
Norihiro Kobayashi
C30 - CRYSTAL GROWTH
Information
Patent Application
Method for preparing nitrogen-doped annealed wafer and nitrogen-dop...
Publication number
20030157814
Publication date
Aug 21, 2003
Makoto Iida
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method for heat treatment of silicon wafers and silicon wafer
Publication number
20030104709
Publication date
Jun 5, 2003
SHIN-ETSU HANDOTAI CO., LTD.
Norihiro Kobayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method of producing a bonded wafer and the bonded wafer
Publication number
20030020096
Publication date
Jan 30, 2003
SHIN-ETSU HANDOTAI CO., LTD.
Shoji Akiyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method of producing anneal wafer and anneal wafer
Publication number
20020173173
Publication date
Nov 21, 2002
Norihiro Kobayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Production method for annealed wafer
Publication number
20020160591
Publication date
Oct 31, 2002
Shoji Akiyama
H01 - BASIC ELECTRIC ELEMENTS