Ki-Yeon Chu

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Gyeonggi-do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Polishing head and polishing carrier apparatus having the same
- Patent number 9,999,957
- Issue date Jun 19, 2018
- Samsung Electronics Co., Ltd.
- Yun-Seok Choi
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
POLISHING HEAD AND POLISHING CARRIER APPARATUS HAVING THE SAME
- Publication number 20160236318
- Publication date Aug 18, 2016
- Samsung Electronics Co., Ltd.
- Yun-Seok CHOI
- B24 - GRINDING POLISHING
Information Patent Application
Wet cleaning apparatus including a cover for removing impurities th...
- Publication number 20050279389
- Publication date Dec 22, 2005
- Yong-Myung Jun
- B08 - CLEANING