Tetsuya Oka

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Takasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing silicon substrate and silicon substrate
- Patent number 9,390,905
- Issue date Jul 12, 2016
- Shin-Etsu Handotai Co., Ltd.
- Tetsuya Oka
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Method for manufacturing silicon single crystal wafer and electroni...
- Patent number 9,252,025
- Issue date Feb 2, 2016
- Shin-Etsu Handotai Co., Ltd.
- Tetsuya Oka
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR MANUFACTURING SILICON SINGLE CRYSTAL WAFER AND ELECTRONI...
- Publication number 20150001680
- Publication date Jan 1, 2015
- Shin-Etsu Handotai Co., Ltd.
- Tetsuya Oka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR MANUFACTURING SILICON SUBSTRATE AND SILICON SUBSTRATE
- Publication number 20130316139
- Publication date Nov 28, 2013
- Shin-Etsu Handotai Co., Ltd.
- Tetsuya Oka
- C30 - CRYSTAL GROWTH
Information Patent Application
METHOD FOR HEAT-TREATING WAFER, METHOD FOR PRODUCING SILICON WAFER,...
- Publication number 20130098888
- Publication date Apr 25, 2013
- Shin-Etsu Handotai Co., Ltd.
- Koji Ebara
- C30 - CRYSTAL GROWTH
Information Patent Application
METHOD FOR PRODUCING SILICON WAFER AND SILICON WAFER
- Publication number 20130093060
- Publication date Apr 18, 2013
- Shin-Etsu Handotai Co., Ltd.
- Tetsuya Oka
- C30 - CRYSTAL GROWTH
Information Patent Application
SILICON SINGLE CRYSTAL WAFER, METHOD FOR PRODUCING SILICON SINGLE C...
- Publication number 20110001219
- Publication date Jan 6, 2011
- Shin-Etsu Handotai Co., Ltd.
- Koji Ebara
- C30 - CRYSTAL GROWTH