Patents by Inventor TOSHIKIYO KAWAMURA

TOSHIKIYO KAWAMURA 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).

  • COIL, AND STATOR, ROTOR, AND MOTOR EQUIPPED WITH SAME, AND MANUFACTURING METHOD FOR COIL
    Publication number: 20220320932
    Abstract: A coil is configured with stacked n turns (where n is an integer of 2 or more) of spirally wound conductive wire having a rectangular cross-section. A k-th turn (where k is an integer and 1?k?n) of the coil has at least a straight portion and a corner portion extending from an end part of the straight portion. On an outer peripheral surface of the corner portion, there are formed at least a first bent portion bent toward an inner peripheral side and a second bent portion bent toward the outer peripheral side, and curvature C1 of the first bent portion is different from curvature C2 of second bent portion.
    Type: Application
    Filed: May 21, 2020
    Publication date: October 6, 2022
    Inventors: HIROKI SAKAGUCHI, YOSHIHARU NAKAMURA, SHOICHI KOYAMA, TOSHIKIYO KAWAMURA, KIYOMI KAWAMURA, HIDEYUKI TANIGUCHI, AKIHIKO WATANABE