Patents by Inventor Keun-Mo Kim

Keun-Mo 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).

  • Patent number: 5938838
    Abstract: A head drum is coated with double films, each having different characteristics, by forming a first diamond-like hard carbon film of high degree of hardness and then forming a second diamond-like hard carbon film of a lower degree of hardness thereon. The degree of hardness of the second film is lower than that of the first film. The double coating is performed by means of a synthesizing apparatus which comprises a reactor consisting of a power supply electrode, a workpiece support and and an annular ground electrode spaced from the stacked head drums by a predetermined distance.
    Type: Grant
    Filed: March 19, 1997
    Date of Patent: August 17, 1999
    Assignee: Korea Institute of Science and Technology
    Inventors: Kwang-Ryeol Lee, Kwang-Yong Eun, Keun-Mo Kim
  • Patent number: 5768046
    Abstract: A head drum is coated with double films, each having different characteristics, by forming a first diamond-like hard carbon film of high degree of hardness and then forming a second diamond-like hard carbon film of a lower degree of hardness thereon. The degree of hardness of the second film is lower than that of the first film. The double coating is performed by means of a synthesizing apparatus which comprises a reactor consisting of a power supply electrode, a workpiece support and an annular ground electrode spaced from the stacked head drums by a predetermined distance.
    Type: Grant
    Filed: March 19, 1997
    Date of Patent: June 16, 1998
    Assignee: Korea Institute of Science and Technology
    Inventors: Kwang-Ryeol Lee, Kwang-Yong Eun, Keun-Mo Kim
  • Patent number: 5695565
    Abstract: A head drum is coated with double films, each having different characteristics, by forming a first diamond-like hard carbon film of high degree of hardness and then forming a second diamond-like hard carbon film of a lower degree of hardness thereon. The degree of hardness of the second film is lower than that of the first film. The double coating is performed by means of a synthesizing apparatus which comprises a reactor consisting of a power supply electrode, a workpiece support and an annular ground electrode spaced from the stacked head drums by a predetermined distance.
    Type: Grant
    Filed: July 17, 1995
    Date of Patent: December 9, 1997
    Assignee: Korea Institute of Science and Technology
    Inventors: Kwang-Ryeol Lee, Kwang-Yong Eun, Keun-Mo Kim