Patents by Inventor Tien-Hung Shen

Tien-Hung Shen 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 reducing core losses of grain-oriented silicon steel using liquid jet scribing
    Patent number: 4737203
    Abstract: A method is provided for improving core loss of grain-oriented silicon steel by scribing the steel after cold rolling in a direction substantially transverse to the rolling direction by directing a pressurized liquid jet onto the steel surface to form selected spaced-apart scribe lines. The jet may contain solid particles which increase the scribing efficiency.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: April 12, 1988
    Assignee: Allegheny Ludlum Corporation
    Inventors: Tien-Hung Shen, James A. Salsgiver
  • Method for reducing core losses of grain-oriented silicon steel using liquid jet scribing
    Patent number: 4680062
    Abstract: A method is provided for improving core loss of grain-oriented silicon steel by scribing the steel after cold rolling in a direction substantially transverse to the rolling direction by directing a pressurized liquid jet onto the steel surface to form selected spaced-apart scribe lines. The jet may contain solid particles which increase the scribing efficiency.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: July 14, 1987
    Assignee: Allegheny Ludlum Corporation
    Inventors: Tien-Hung Shen, James A. Salsgiver