Pi-Chen Cheng

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Kaohsiung, TW

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Patents Grantslast 30 patents

Information Patent Grant
Base generator
- Patent number 9,617,223
- Issue date Apr 11, 2017
- Eternal Materials Co., Ltd.
- Pi-Chen Cheng
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyimide precursor composition and preparation method and use thereof
- Patent number 9,334,369
- Issue date May 10, 2016
- Eternal Chemical Co., Ltd.
- Pi-Chen Cheng
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Precursor composition for polyimide and use thereof
- Patent number 8,735,534
- Issue date May 27, 2014
- Eternal Chemical Co., Ltd.
- Chung-Jen Wu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
BASE GENERATOR
- Publication number 20130172569
- Publication date Jul 4, 2013
- Eternal Chemical Co., Ltd.
- Pi-Jen Cheng
- C07 - ORGANIC CHEMISTRY
Information Patent Application
POLYIMIDE PRECURSOR COMPOSITION AND PREPARATION METHOD AND USE THEREOF
- Publication number 20130172494
- Publication date Jul 4, 2013
- Eternal Chemical Co., Ltd.
- Pi-Jen Cheng
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PHOTOSENSITIVE RESIN COMPOSITION AND ITS APPLICATION
- Publication number 20110212402
- Publication date Sep 1, 2011
- Meng-Yen Chou
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PRECURSOR COMPOSITION FOR POLYIMIDE AND USE THEREOF
- Publication number 20100168265
- Publication date Jul 1, 2010
- Eternal Chemical Co., Ltd.
- CHUNG-JEN WU
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
ELECTRONIC RECOVERY SYSTEM AND METHOD
- Publication number 20070127052
- Publication date Jun 7, 2007
- MEDIATEK INC.
- Pi-Yuan Cheng
- G06 - COMPUTING CALCULATING COUNTING