Ken Yoshizawa

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Niigata, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing silicon wafer and silicon wafer
- Patent number 7,361,219
- Issue date Apr 22, 2008
- Shin-Etsu Handotai Co., Ltd.
- Ken Yoshizawa
- C30 - CRYSTAL GROWTH
Information Patent Grant
High-frequency induction heater and method of producing semiconduct...
- Patent number 5,792,258
- Issue date Aug 11, 1998
- Shin-Etsu Handotai Co., Ltd.
- Masanori Kimura
- C30 - CRYSTAL GROWTH

Patents Applicationslast 30 patents

Information Patent Application
Method for producincg silicon wafer and silicon wafer
- Publication number 20060174820
- Publication date Aug 10, 2006
- Shin-Etsu Handotai Co., Ltd.
- Ken Yoshizawa
- C30 - CRYSTAL GROWTH