Patents by Inventor Sie-Hyeong Kim

Sie-Hyeong Kim 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).

  • Method for producing sintered metal and a rotary compressor flange produced by use of the method
    Patent number: 6733723
    Abstract: A method to produce a sintered metal with an improved abrasion resistance and durability, and a rotary compressor flange produced by use of the method. The sintered metal is produced by kneading metal powder, pressure molding the kneaded powder, and sintering the molded powder. The sintered metal is further produced by subzero treating the sintered metal powder for a predetermined time and tempering the resulting sintered metal powder under a predetermined compression residual stress.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: May 11, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Jun Choi, Sie-Hyeong Kim, Sung-Gyun Lim
  • Method for producing sintered metal and a rotary compressor flange produced by use of the method
    Publication number: 20030138341
    Abstract: A method to produce a sintered metal with an improved abrasion resistance and durability, and a rotary compressor flange produced by use of the method. The sintered metal is produced by kneading metal powder, pressure molding the kneaded powder, and sintering the molded powder. The sintered metal is further produced by subzero treating the sintered metal powder for a predetermined time and tempering the resulting sintered metal powder under a predetermined compression residual stress.
    Type: Application
    Filed: June 4, 2002
    Publication date: July 24, 2003
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Dong-Jun Choi, Sie-Hyeong Kim, Sung-Gyun Lim