Takuya Yotsui

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cleaning method, method for producing silicon single crystal, and c...
- Patent number 11,426,775
- Issue date Aug 30, 2022
- Sumco Corporation
- Koichi Maegawa
- B08 - CLEANING
Information Patent Grant
Crystal holding mechanism of single crystal pulling device and meth...
- Patent number 9,593,433
- Issue date Mar 14, 2017
- Sumco Corporation
- Ayumi Suda
- C30 - CRYSTAL GROWTH
Information Patent Grant
Single crystal pulling apparatus
- Patent number 9,145,620
- Issue date Sep 29, 2015
- Sumco Corporation
- Shuichi Inami
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
CLEANING METHOD, METHOD FOR PRODUCING SILICON SINGLE CRYSTAL, AND C...
- Publication number 20200346258
- Publication date Nov 5, 2020
- SUMCO CORPORATION
- Koichi MAEGAWA
- B08 - CLEANING
Information Patent Application
CRYSTAL HOLDING MECHANISM OF SINGLE CRYSTAL PULLING DEVICE AND METH...
- Publication number 20130319318
- Publication date Dec 5, 2013
- SUMCO CORPORATION
- Ayumi Suda
- C30 - CRYSTAL GROWTH
Information Patent Application
SINGLE-CRYSTAL GROWTH APPARATUS AND RAW-MATERIAL SUPPLY METHOD
- Publication number 20110036860
- Publication date Feb 17, 2011
- SUMCO CORPORATION
- Toshiyuki Fujiwara
- C30 - CRYSTAL GROWTH
Information Patent Application
Single crystal pulling apparatus
- Publication number 20090249998
- Publication date Oct 8, 2009
- Shuichi Inami
- C30 - CRYSTAL GROWTH