Akira Nakashima

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing silicon wafer
- Patent number 7,902,039
- Issue date Mar 8, 2011
- Sumco Corporation
- Shinichi Tomita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for manufacturing silicon wafer
- Patent number 7,781,313
- Issue date Aug 24, 2010
- Sumco Corporation
- Shinichi Tomita
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Method for manufacturing silicon wafer
- Publication number 20090325385
- Publication date Dec 31, 2009
- SUMCO CORPORATION
- Shinichi Tomita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR MANUFACTURING SILICON WAFER
- Publication number 20080132032
- Publication date Jun 5, 2008
- Shinichi Tomita
- H01 - BASIC ELECTRIC ELEMENTS