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Takeshi Fujita
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Akita-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Quartz glass crucible
Patent number
12,116,692
Issue date
Oct 15, 2024
Sumco Corporation
Takeshi Fujita
C30 - CRYSTAL GROWTH
Information
Patent Grant
Apparatus and method for manufacturing silica glass crucible
Patent number
12,091,346
Issue date
Sep 17, 2024
Sumco Corporation
Takeshi Fujita
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method and apparatus for measuring transmittance of quartz crucible
Patent number
11,703,452
Issue date
Jul 18, 2023
Sumco Corporation
Yasunobu Shimizu
G01 - MEASURING TESTING
Information
Patent Grant
Silica glass crucible and method for producing monocrystalline sili...
Patent number
10,266,961
Issue date
Apr 23, 2019
Sumco Corporation
Toshiaki Sudo
C30 - CRYSTAL GROWTH
Information
Patent Grant
Composite crucible, method of manufacturing the same, and method of...
Patent number
9,133,063
Issue date
Sep 15, 2015
Sumco Corporation
Toshiaki Sudo
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method of manufacturing fused silica crucible
Patent number
8,887,374
Issue date
Nov 18, 2014
Japan Super Quartz Corporation
Takeshi Fujita
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Apparatus and method for manufacturing vitreous silica crucible
Patent number
8,739,573
Issue date
Jun 3, 2014
Japan Super Quartz Corporation
Toshiaki Sudo
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Apparatus for manufacturing vitreous silica crucible
Patent number
8,281,620
Issue date
Oct 9, 2012
Japan Super Quartz Corporation
Toshiaki Sudo
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Method and apparatus for manufacturing vitreous silica crucible
Patent number
8,196,429
Issue date
Jun 12, 2012
Japan Super Quartz Corporation
Takeshi Fujita
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Arc discharge apparatus, apparatus and method for manufacturing vit...
Patent number
8,172,942
Issue date
May 8, 2012
Japan Super Quartz Corporation
Masanori Fukui
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Crucible lift device and method for taking-out crucible
Patent number
8,141,389
Issue date
Mar 27, 2012
Japan Super Quartz Corporation
Takeshi Fujita
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of producing vitreous silica crucible
Patent number
8,047,020
Issue date
Nov 1, 2011
Japan Super Quartz Corporation
Takeshi Fujita
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of manufacturing carbon electrode
Patent number
7,966,715
Issue date
Jun 28, 2011
Japan Super Quartz Corporation
Takeshi Fujita
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
Information
Patent Application
QUARTZ GLASS CRUCIBLE
Publication number
20220090290
Publication date
Mar 24, 2022
SUMCO CORPORATION
Takeshi FUJITA
C30 - CRYSTAL GROWTH
Information
Patent Application
APPARATUS AND METHOD FOR MANUFACTURING SILICA GLASS CRUCIBLE
Publication number
20220009815
Publication date
Jan 13, 2022
SUMCO CORPORATION
Takeshi FUJITA
C30 - CRYSTAL GROWTH
Information
Patent Application
METHOD AND APPARATUS FOR MEASURING TRANSMITTANCE OF QUARTZ CRUCIBLE
Publication number
20210181106
Publication date
Jun 17, 2021
SUMCO CORPORATION
Yasunobu SHIMIZU
G01 - MEASURING TESTING
Information
Patent Application
METHOD OF MANUFACTURING COMPOSITE CRUCIBLE AND METHOD OF MANUFACTUR...
Publication number
20150337456
Publication date
Nov 26, 2015
SUMCO CORPORATION
Toshiaki SUDO
C30 - CRYSTAL GROWTH
Information
Patent Application
SILICA GLASS CRUCIBLE AND METHOD FOR PRODUCING MONOCRYSTALLINE SILI...
Publication number
20140352606
Publication date
Dec 4, 2014
Toshiaki Sudo
C30 - CRYSTAL GROWTH
Information
Patent Application
APPARATUS FOR MANUFACTURING VITREOUS SILICA CRUCIBLE
Publication number
20120318021
Publication date
Dec 20, 2012
JAPAN SUPER QUARTZ CORPORATION
Toshiaki Sudo
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
APPARATUS FOR MANUFACTURING VITREOUS SILICA CRUCIBLE
Publication number
20120272682
Publication date
Nov 1, 2012
JAPAN SUPER QUARTZ CORPORATION
Toshiaki SUDO
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
APPARATUS FOR MANUFACTURING VITREOUS SILICA CRUCIBLE
Publication number
20120272687
Publication date
Nov 1, 2012
JAPAN SUPER QUARTZ CORPORATION
Toshiaki Sudo
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
COMPOSITE CRUCIBLE, METHOD OF MANUFACTURING THE SAME, AND METHOD OF...
Publication number
20120160155
Publication date
Jun 28, 2012
JAPAN SUPER QUARTZ CORPORATION
Toshiaki Sudo
C30 - CRYSTAL GROWTH
Information
Patent Application
APPARATUS FOR MANUFACTURING VITREOUS SILICA CRUCIBLE
Publication number
20120141622
Publication date
Jun 7, 2012
JAPAN SUPER QUARTZ CORPORATION
Toshiaki Sudo
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
APPARATUS AND METHOD FOR MANUFACTURING VITREOUS SILICA CRUCIBLE
Publication number
20120131954
Publication date
May 31, 2012
JAPAN SUPER QUARTZ CORPORATION
Toshiaki Sudo
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
METHOD OF MANUFACTURING CARBON ELECTRODE AND METHOD OF MANUFACTURIN...
Publication number
20110214454
Publication date
Sep 8, 2011
JAPAN SUPER QUARTZ CORPORATION
Takeshi FUJITA
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
METHOD AND APPARATUS FOR MANUFACTURING VITREOUS SILICA CRUCIBLE
Publication number
20100229599
Publication date
Sep 16, 2010
JAPAN SUPER QUARTZ CORPORATION
Takeshi Fujita
C30 - CRYSTAL GROWTH
Information
Patent Application
METHOD OF PRODUCING VITREOUS SILICA CRUCIBLE
Publication number
20100162760
Publication date
Jul 1, 2010
JAPAN SUPER QUARTZ CORPORATION
Takeshi Fujita
C30 - CRYSTAL GROWTH
Information
Patent Application
Arc melting high-purity carbon electrode and application thereof
Publication number
20100095880
Publication date
Apr 22, 2010
JAPAN SUPER QUARTZ CORPORATION
Masanori FUKUI
C30 - CRYSTAL GROWTH
Information
Patent Application
ARC DISCHARGE APPARATUS, APPARATUS AND METHOD FOR MANUFACTURING VIT...
Publication number
20100095881
Publication date
Apr 22, 2010
JAPAN SUPER QUARTZ CORPORATION
Masanori FUKUI
C30 - CRYSTAL GROWTH
Information
Patent Application
METHOD OF MANUFACTURING CARBON ELECTRODE AND METHOD OF MANUFACTURIN...
Publication number
20100077611
Publication date
Apr 1, 2010
JAPAN SUPER QUARTZ CORPORATION
Takeshi FUJITA
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
CRUCIBLE LIFT DEVICE AND METHOD FOR TAKING-OUT CRUCIBLE
Publication number
20090279996
Publication date
Nov 12, 2009
JAPAN SUPER QUARTZ CORPORATION
Takeshi FUJITA
C03 - GLASS MINERAL OR SLAG WOOL