Tohru Segawa

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Koriyama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Production process of synthetic quartz glass
- Patent number 7,841,211
- Issue date Nov 30, 2010
- Shin-Etsu Quartz Products Co., Ltd.
- Tatsuhiro Sato
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Quartz glass jig for processing apparatus using plasma
- Patent number 6,869,898
- Issue date Mar 22, 2005
- Heraeus Quarzglas GmbH & Co. KG
- Kyoichi Inaki
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Plasma resistant quartz glass jig
- Patent number 6,680,455
- Issue date Jan 20, 2004
- Heraeus Quarzglas GmbH & Co. KG
- Kyoichi Inaki
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of producing cristobalite containing silica glass
- Patent number 5,876,473
- Issue date Mar 2, 1999
- Kyoichi Inaki
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
Method for producing synthetic quartz glass and synthetic quartz gl...
- Publication number 20060059948
- Publication date Mar 23, 2006
- Tatsuhiro Sato
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Silica glass jig for semiconductor industry and method for producin...
- Publication number 20040050102
- Publication date Mar 18, 2004
- Tohru Segawa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Quartz glass jig for processing apparatus using plasma
- Publication number 20030190483
- Publication date Oct 9, 2003
- Kyoichi Inaki
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Silica glass jig for semiconductor industry and method for producin...
- Publication number 20020078886
- Publication date Jun 27, 2002
- Tohru Segawa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Plasma resistant quartz glass jig
- Publication number 20020046992
- Publication date Apr 25, 2002
- Kyoichi Inaki
- C03 - GLASS MINERAL OR SLAG WOOL