Jen-Feng Cheng

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Taichung City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Polishing method and polishing system
- Patent number 9,393,665
- Issue date Jul 19, 2016
- IV Technologies Co., Ltd.
- Yu-Piao Wang
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
POLISHING METHOD AND POLISHING SYSTEM
- Publication number 20120244785
- Publication date Sep 27, 2012
- POWERCHIP TECHNOLOGY CORPORATION
- Yu-Piao Wang
- B24 - GRINDING POLISHING