Patents by Inventor Hisaya Takayasu

Hisaya Takayasu 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).

  • Metal fitting integration type stress-relief cone and a cable sealing end using the same
    Patent number: 8383944
    Abstract: A metal fitting integration type stress-relief cone is provided with a stress-relief cone which includes a cylindrical rubber-like elastic body on an outer circumference of a cable core and a metal fitting which surrounds the cable core and is integral with a low-voltage side of the stress-relief cone. The stress-relief cone is provided with a cylindrical semi-conducting body part at the low-voltage side and has a bell-mouthed electric-field stress-control part in an end of a high-voltage side, an insulating body part on the high-voltage side with a low-voltage side end concentric with the semi-conducting body part and a cylindrical insulation protective layer which is arranged continuously at the end of the low-voltage side of the insulating body part and is integral with the outer circumference of the semi-conducting body part.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: February 26, 2013
    Assignee: SWCC Showa Cable Systems Co., Ltd.
    Inventors: Hisaya Takayasu, Nobuyuki Sema
  • METAL FITTING INTEGRATION TYPE STRESS-RELIEF CONE AND A CABLE SEALING END USING THE SAME
    Publication number: 20110114358
    Abstract: A metal fitting integration type stress-relief cone is provided with a stress-relief cone which includes a cylindrical rubber-like elastic body on an outer circumference of a cable core and a metal fitting which surrounds the cable core and is integral with a low-voltage side of the stress-relief cone.
    Type: Application
    Filed: September 22, 2008
    Publication date: May 19, 2011
    Applicant: SWCC SHOWA CABLE SYSTEMS CO., LTD.
    Inventors: Hisaya Takayasu, Nobuyuki Sema