Ken SUNAKAWA

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Annaka-shi, JP

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Patents Grantslast 30 patents

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
Information Patent Grant
Method for heat-treating silicon single crystal wafer
- Patent number 11,408,092
- Issue date Aug 9, 2022
- Shin-Etsu Handotai Co., Ltd.
- Wei Feng 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 HEAT-TREATING SILICON SINGLE CRYSTAL WAFER
- Publication number 20210062366
- Publication date Mar 4, 2021
- Shin-Etsu Handotai Co., Ltd.
- Wei Feng QU
- C30 - CRYSTAL GROWTH