Patents by Inventor Iksu Chong

Iksu Chong 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).

  • Oxide superconductor
    Patent number: 6482775
    Abstract: An oxide superconductor consisting of an oxide which comprises, as constituent metal elements, bismuth, lead, strontium, calcium and copper having a molar ratio of lead to bismuth of at least 0.2:1, and having an internal structure in which domains having a relatively high concentration of lead and no long-period structure are contained in domains having a relatively low concentration of lead and a long-period structure. This oxide superconductor has a storing pinning function and a high critical current density Jc even at a high temperature and a high magnetic field, can be produced by industrial methods, and is easily processed to form wires.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: November 19, 2002
    Assignees: Sumitomo Electric Industries, Ltd.
    Inventors: Mikio Takano, Zenji Hiroi, Yoshichika Bando, Takahito Terashima, Kohji Kishio, Junichi Shimoyama, Koichi Kitazawa, Jun Takada, Iksu Chong
  • OXIDE SUPERCONDUCTOR
    Publication number: 20020121630
    Abstract: An oxide superconductor consisting of an oxide which comprises, as constituent metal elements, bismuth, lead, strontium, calcium and copper having a molar ratio of lead to bismuth of at least 0.2:1, and having an internal structure in which domains having a relatively high concentration of lead and no long-period structure are contained in domains having a relatively low concentration of lead and a long-period structure. This oxide superconductor has a storing pinning function and a high critical current density Jc even at a high temperature and a high magnetic field, can be produced by industrial methods, and is easily processed to form wires.
    Type: Application
    Filed: July 28, 1999
    Publication date: September 5, 2002
    Inventors: MIKIO TAKANO, ZENJI HIROI, YOSHICHIKA BANDO, TAKAHITO TERASHIMA, KOHJI KISHIO, JUNICHI SHIMOYAMA, KOICHI KITAZAWA, JUN TAKADA, IKSU CHONG