Yao-Ching Tsai

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Taipei, TW

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for preparing caprolactam
- Patent number 9,902,700
- Issue date Feb 27, 2018
- China Petrochemical Development Corporation
- Yung-Shun Kung
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method and system for preparing caprolactam
- Patent number 9,518,024
- Issue date Dec 13, 2016
- China Petrochemical Development Corporation
- Yung-Shun Kung
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for continuously preparing carboxylic acid ester
- Patent number 9,012,679
- Issue date Apr 21, 2015
- China Petrochemical Development Corporation
- Jih-Dar Hwang
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Surface treatment method and device thereof
- Patent number 8,470,159
- Issue date Jun 25, 2013
- NATIONAL TAIWAN UNIVERSITY
- Yao Yang Tsai
- B24 - GRINDING POLISHING
Information Patent Grant
Automatic cold/hot distilled water fountain
- Patent number 5,290,402
- Issue date Mar 1, 1994
- Yao K. Tsai
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND SYSTEM FOR PREPARING CAPROLACTAM
- Publication number 20170121289
- Publication date May 4, 2017
- China Petrochemical Development Corporation
- Yung-Shun Kung
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD AND SYSTEM FOR PREPARING CAPROLACTAM
- Publication number 20160237038
- Publication date Aug 18, 2016
- China Petrochemical Development Corporation
- Yung-Shun Kung
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD FOR CONTINUOUSLY PREPARING CARBOXYLIC ACID ESTER
- Publication number 20130303796
- Publication date Nov 14, 2013
- China Petrochemical Development Corporation, Taipei (Taiwan)
- Jih-Dar Hwang
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Machining Fluid
- Publication number 20100133238
- Publication date Jun 3, 2010
- National Taiwan University
- Yao Yang Tsai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Surface treatment method and device thereof
- Publication number 20080000584
- Publication date Jan 3, 2008
- Yao Yang Tsai
- B24 - GRINDING POLISHING