Patents by Inventor Chiu-Chih Hsieh

Chiu-Chih Hsieh 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).

  • Polishing composition
    Patent number: 6037260
    Abstract: The present invention provides a polishing composition which comprises 100 weight part of water; 0.5 to 20 weight part of boehmite, a hydroxide of aluminum, pseudoboehmite or mixtures thereof; 1 to 50 weight part of aluminum oxide (Al.sub.2 O.sub.3); and 1 to 20 weight part of an acidic solution. The polishing composition of the present invention is a thixotropic fluid and displays satisfactory suspension properties. Therefore, it is very suitable for use as a polishing slurry.
    Type: Grant
    Filed: May 12, 1998
    Date of Patent: March 14, 2000
    Assignees: Industrial Technology Research Institute, Chang Chun Petrochemical Corporation, China Steel Corporation, Union Petrochemical Corporation, A-Green Corporation, China Petrochemical Development Corporation, Wah Hing Industrial Corporation, Eternal Chemical Corporation, Chinese Petroleum Corporation
    Inventors: Ming-Shyong Tsai, Li-Mei Chen, Yue-Chin Yeh, Chiu-Chih Hsieh, Ying-Tsung Chen