Patents by Inventor Tsuyoshi Kobayakawa

Tsuyoshi Kobayakawa 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).

  • Armature of electric motor and electric motor
    Patent number: 8946965
    Abstract: An armature of an electric motor includes a core and a winding. The core has a plurality of slots and a plurality of teeth formed between the slots. The winding is composed of a plurality of wires. The winding has a plurality of coil parts and connecting portions. The coil parts are inserted into the slots and wound around and across the teeth. The connecting portions connect the coil parts together. The winding has a twisted shape in the connecting portions.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: February 3, 2015
    Assignee: Komatsu Ltd.
    Inventors: Teiichirou Chiba, Tsuyoshi Kobayakawa, Daisuke Yoshida
  • ARMATURE OF ELECTRIC MOTOR AND ELECTRIC MOTOR
    Publication number: 20110210641
    Abstract: An armature of an electric motor includes a core and a winding. The core has a plurality of slots and a plurality of teeth formed between the slots. The winding is composed of a plurality of wires. The winding has a plurality of coil parts and connecting portions. The coil parts are inserted into the slots and wound around and across the teeth. The connecting portions connect the coil parts together. The winding has a twisted shape in the connecting portions.
    Type: Application
    Filed: December 21, 2009
    Publication date: September 1, 2011
    Applicant: KOMATSU LTD.
    Inventors: Teiichirou Chiba, Tsuyoshi Kobayakawa, Daisuke Yoshida