Patents by Inventor Teruo KANEKAWA

Teruo KANEKAWA 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).

  • Water-tree resistance evaluation method, insulation design method, and rotary electric machine
    Patent number: 10175289
    Abstract: A water-tree resistance evaluation material including: a material selection selecting a candidate insulation material; a test carrying out a water tree test on a test piece having electrode holes formed on a first surface; and a candidate insulation material evaluation evaluating characteristics of the candidate insulation material, including progress and speed of a water tree. The test includes: a system and condition setting for setting a test system; a voltage application for grounding a ground-side electrode that is immersed in the ground-side aqueous solution, while applying an AC voltage to an application-side electrode that is immersed in the application-side aqueous solution; a measurement step; and a period determination for determining whether a test period has exceeded a predetermined period.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: January 8, 2019
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Toshihiro Tsuda, Tetsuo Yoshimitsu, Yuichi Tsuboi, Yoshihiro Ishikawa, Teruo Kanekawa
  • WATER-TREE RESISTANCE EVALUATION METHOD, INSULATION DESIGN METHOD, AND ROTARY ELECTRIC MACHINE
    Publication number: 20160223605
    Abstract: A water-tree resistance evaluation material including: a material selection selecting a candidate insulation material; a test carrying out a water tree test on a test piece having electrode holes formed on a first surface; and a candidate insulation material evaluation evaluating characteristics of the candidate insulation material, including progress and speed of a water tree. The test includes: a system and condition setting for setting a test system; a voltage application for grounding a ground-side electrode that is immersed in the ground-side aqueous solution, while applying an AC voltage to an application-side electrode that is immersed in the application-side aqueous solution; a measurement step; and a period determination for determining whether a test period has exceeded a predetermined period.
    Type: Application
    Filed: September 20, 2013
    Publication date: August 4, 2016
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Toshihiro TSUDA, Tetsuo YOSHIMITSU, Yuichi TSUBOI, Yoshihiro ISHIKAWA, Teruo KANEKAWA