Patents by Inventor Tatsuji ISHIBASHI

Tatsuji ISHIBASHI 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: 8816209
    Abstract: A submersible motor electric wire includes a conductor including a copper wire and an enamel coating formed on the periphery of the copper wire, and an insulating sheath layer formed outside the conductor. The insulating sheath layer includes a silane graft polymer as a main constituent. The silane graft polymer is formed by a graft-polymerization that an unsaturated silane compound and an organic peroxide are added to polyethylene, and is cross-linked contacting with water in the presence of a siloxane condensation catalyst. Alternatively, the insulating sheath layer includes a composition including polyethylene as a main constituent, and the composition is cross-linked by being irradiated with an ionizing radiation.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: August 26, 2014
    Assignee: Hitachi Metals, Ltd.
    Inventors: Shuhei Yasuda, Kiyoshi Watanabe, Hisao Furuichi, Takanori Yamazaki, Tatsuji Ishibashi
  • Publication number: 20090283297
    Abstract: A submersible motor electric wire includes a conductor including a copper wire and an enamel coating formed on the periphery of the copper wire, and an insulating sheath layer formed outside the conductor. The insulating sheath layer includes a silane graft polymer as a main constituent. The silane graft polymer is formed by a graft-polymerization that an unsaturated silane compound and an organic peroxide are added to polyethylene, and is cross-linked contacting with water in the presence of a siloxane condensation catalyst. Alternatively, the insulating sheath layer includes a composition including polyethylene as a main constituent, and the composition is cross-linked by being irradiated with an ionizing radiation.
    Type: Application
    Filed: May 18, 2009
    Publication date: November 19, 2009
    Applicant: Hitachi Cable, Ltd.
    Inventors: Shuhei YASUDA, Kiyoshi WATANABE, Hisao FURUICHI, Takanori YAMAZAKI, Tatsuji ISHIBASHI