Patents by Inventor Han Dae Cho

Han Dae Cho 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).

  • Compound testing machine for testing various mechanical properties used for optical connector
    Patent number: 5983702
    Abstract: A compound testing machine for testing mechanical properties used for an optical connector does not additionally have each testing machine for each of mechanical properties (such as a tensile force including both a straight pull and a side pull, a flex, a twist and an impact) in testing a mechanical property between optical connectors and other mechanical property between optical fibers of the optical connectors, and includes only one testing machine for simultaneously testing various mechanical properties in order to enhance a test machine's efficiency.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: November 16, 1999
    Assignees: Electronics and Telecommunications Research Institute, Korea Telecom
    Inventors: Seung Ho Ahn, Sang Ho Park, Oh Gone Chun, Myung Yung Jeong, Tae Goo Choy, Han Dae Cho