Patents by Inventor Wen-Sheng Chang

Wen-Sheng Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20090298679
    Abstract: Photo energy transformation catalysts and methods for fabricating the same are provided. The method includes mixing a solution containing a positive valence element of Group IB, a solution containing a positive valence element of Group IIIA, and a solution containing a negative valence element of Group VIA to obtain a composition and forming a film from the composition by liquid phase deposition, wherein the film contains compounds including the elements of Group IB, Group IIIA, and Group VIA.
    Type: Application
    Filed: October 10, 2008
    Publication date: December 3, 2009
    Inventors: Jau-Chyn HUANG, Wen-Sheng CHANG, Ming-Shan JENG, Pei-Chun CHEN, Tai-Chou LEE, Ching-Chen WU
  • Publication number: 20080152836
    Abstract: A method and apparatus of growing a thin film are provided. The method comprises at least (a) providing a number of substrates; (b) cleaning the substrates; and (c) placing the substrates into a reaction liquid; (d) vibrating the reaction liquid by ultrasonic waves such that a thin film is grown on the substrates evenly.
    Type: Application
    Filed: November 29, 2007
    Publication date: June 26, 2008
    Inventors: Jau-Chyn Huang, Kong-Wei Cheng, Wen-Sheng Chang, Tai-Chou Lee, Ching-Chen Wu
  • Patent number: 6313230
    Abstract: A process for hydrogenation of conjugated diene polymers comprises hydrogenating said polymer in the presence of hydrogen and a hydrogenation catalyst composition comprising: (a) at least one titanium compound represented by the following formula (a): wherein R1 and R2, which may be the same or different, represent a halogen atom, an alkyl group, an aryl group, an arakyl group, a cycloalkyl group, an aryloxy group, an alkoxy group or a carbonyl group, and Cp* represents a cyclopentadienyl group or a derivative having the formula of C5R5, and R5, which may be the same or different, represents a hydrogen atom, an alkyl group an aralkyl group and an aryl group; and (b) at least one silyl hydride.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: November 6, 2001
    Assignees: Industrial Technology Research Institute, Chi Mei Corporation
    Inventors: Jing-Cherng Tsai, Wen-Sheng Chang, Yu-Shan Chao, Chih-Nan Chu, Chen-Pao Huang, Hung-Yang Hsiao
  • Patent number: 6010975
    Abstract: A catalyst composition for the preparation of 3-pentenoic ester from butadiene. The catalyst composition includes a palladium complex; and a bidentate phosphine with the following formula: .sub.1 R.sub.2 P--(CH.sub.2)n--PR.sub.3 R.sub.4, wherein n is a integer from 1 to 6; and a bulky benzoic carboxylic acid.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: January 4, 2000
    Assignee: Industrial Technology Research Institute
    Inventors: Jing-Cherng Tsai, Wen-Sheng Chang, Chen-Pang Liu, Jui-Hsien Huang, Bor-Ping Wang