Shizuo Igawa

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing silicon single crystal wafer and silicon s...
- Patent number 11,959,191
- Issue date Apr 16, 2024
- Shin-Etsu Handotai Co., Ltd.
- Wei Feng Qu
- C30 - CRYSTAL GROWTH
Information Patent Grant
Carbon-doped silicon single crystal wafer and method for manufactur...
- Patent number 11,761,118
- Issue date Sep 19, 2023
- Shin-Etsu Handotai Co., Ltd.
- Weifeng Qu
- C30 - CRYSTAL GROWTH

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR MANUFACTURING SILICON SINGLE-CRYSTAL SUBSTRATE AND SILIC...
- Publication number 20230212782
- Publication date Jul 6, 2023
- Shin-Etsu Handotai Co., Ltd.
- Weifeng QU
- C30 - CRYSTAL GROWTH
Information Patent Application
CARBON-DOPED SILICON SINGLE CRYSTAL WAFER AND METHOD FOR MANUFACTUR...
- Publication number 20220259767
- Publication date Aug 18, 2022
- Shin-Etsu Handotai Co., Ltd.
- Weifeng QU
- C30 - CRYSTAL GROWTH
Information Patent Application
METHOD FOR MANUFACTURING SILICON SINGLE CRYSTAL WAFER AND SILICON S...
- Publication number 20220195620
- Publication date Jun 23, 2022
- Shin-Etsu Handotai Co., Ltd.
- Wei Feng QU
- 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