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Masakazu Kudoh
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Yamagata-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Method for manufacturing quartz glass ingot
Patent number
7,305,852
Issue date
Dec 11, 2007
Tosoh Quartz Corporation
Yoshihiko Gotoh
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information
Patent Grant
Highly durable silica glass, process and apparatus for producing sa...
Patent number
7,064,094
Issue date
Jun 20, 2006
Tosoh Corporation
Yoshinori Harada
C03 - GLASS MINERAL OR SLAG WOOL
Patents Applications
last 30 patents
Information
Patent Application
Highly durable silica glass, process and apparatus for producing sa...
Publication number
20040116269
Publication date
Jun 17, 2004
TOSOH CORPORATION
Yoshinori Harada
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Higly durable silica glass, process and apparatus for producing sam...
Publication number
20030040423
Publication date
Feb 27, 2003
TOSOH CORPORATION
Yoshinori Harada
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Method for manufacturing quartz glass ingot and a manufacturing app...
Publication number
20020002843
Publication date
Jan 10, 2002
Yoshihiko Gotoh
C03 - GLASS MINERAL OR SLAG WOOL