Patents by Inventor Keiji Munezuka

Keiji Munezuka 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: 8247695
    Abstract: A high frequency (HF) leakage current return wire-contained motor drive cable configured in a manner that one or multiple drive dielectric core wires and one or multiple HF leakage current return wires are arranged adjacent to and in close contact. Concurrently, the drive dielectric core wires and the HF leakage current return wires are arranged substantially parallel to the longitudinal direction and are stranded; and a sheath is provided without a shield being provided outside of the strand wires.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: August 21, 2012
    Assignees: Oki Electric Cable Co,. Ltd., Fanuc Ltd.
    Inventors: Masanobu Nakamura, Keiji Munezuka
  • Publication number: 20100097023
    Abstract: Provided is a high frequency (HF) leakage current return wire-contained motor drive cable configured in a manner that one or multiple drive dielectric core wires (2) and one or multiple HF leakage current return wires (5) are arranged adjacent to and in close contact in neighborhoods thereof to thereby reduce inductances of the HF leakage current return wires (5). Concurrently, the drive dielectric core wires (2) and the HF leakage current return wires (5) are arranged substantially parallel to the longitudinal direction and are stranded; and a sheath (8) is provided without a shield being provided outside of the strand wires.
    Type: Application
    Filed: October 2, 2007
    Publication date: April 22, 2010
    Inventors: Masanobu Nakamura, Keiji Munezuka