Akihiko Tamura

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Vancouver, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of effecting nitrogen doping in Czochralski grown silicon cr...
- Patent number 6,059,875
- Issue date May 9, 2000
- SEH America, Inc.
- Scott M. Kirkland
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method for improving mechanical strength of the neck section of czo...
- Patent number 5,865,887
- Issue date Feb 2, 1999
- SEH America, Inc.
- Witawat Wijaranakula
- C30 - CRYSTAL GROWTH
Information Patent Grant
Apparatus for improving mechanical strength of the neck section of...
- Patent number 5,827,367
- Issue date Oct 27, 1998
- SEH America
- Witawat Wijaranakula
- C30 - CRYSTAL GROWTH