Tomoyuki Shirai

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Shiga, JP

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Patents Grantslast 30 patents

Information Patent Grant
Quartz glass body having improved resistance against plasma corrosi...
- Patent number RE41249
- Issue date Apr 20, 2010
- Heraeus Quarzglas GmbH & Co. KG
- Tatsuhiro Sato
- 428 - Stock material or miscellaneous articles
Information Patent Grant
Quartz glass body having improved resistance against plasma corrosi...
- Patent number 6,887,576
- Issue date May 3, 2005
- Herseus Quarzglas GmbH & Co. KG
- Tatsuhiro Sato
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
Quartz glass body having improved resistance against plasma corrosi...
- Publication number 20020076559
- Publication date Jun 20, 2002
- Tatsuhiro Sato
- C03 - GLASS MINERAL OR SLAG WOOL