Patents by Inventor Shang Shu Kim

Shang Shu 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).

  • High tensile nonmagnetic stainless steel wire for overhead electric conductor, low loss overhead electric conductor using the wire, and method of manufacturing the wire and overhead electric conductor
    Patent number: 7604860
    Abstract: Provided are the high tensile nonmagnetic stainless steel wire for an low loss overhead electric conductor, the low loss overhead electric conductor using the high tensile nonmagnetic stainless steel wire as its core, and a manufacturing method of them respectively. The high tensile nonmagnetic stainless steel wire reduces a core loss and eddy current loss and minimizes effective electric resistance of the conductor by using the nonmagnetic stainless steel wire, that is a non-magnetic material, rather than a high carbon steel wire, that is a strong magnetic material. In addition, an overall power transmission loss is minimized by strengthening the tensile strength of and reducing a sectional area of the steel wire, making an aluminium-welded layer thicker, and increasing the sectional area of an aluminium conductor.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: October 20, 2009
    Assignees: Korea Sangsa Co., Ltd., Korea Electro Technology Research Institute
    Inventors: Byung Geol Kim, Shang Shu Kim, Byung Chul Woo, Hee Woong Lee, Ju Hwan Park, Yong Keun Jeong, Min Bum Lee, Sun Hwan Ahn