Patents by Inventor Shotaro Kawamura

Shotaro 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).

  • Publication number: 20230074828
    Abstract: A magnetostrictive member is formed of a crystal of an iron-based alloy having magnetostrictive characteristics and is a plate-like body having a long-side direction and a short-side direction. At least one of a front face and a back face of the plate-like body has a plurality of grooves extending in the long-side direction.
    Type: Application
    Filed: November 4, 2020
    Publication date: March 9, 2023
    Inventors: Kazuhiko Okubo, Shotaro Kawamura, Kiyoshi Izumi
  • Patent number: 5339059
    Abstract: An electromagnetic switch is provided which comprises a movable switching contact movably supported by a movable switching contact assembly arranged on a support plate, a fixed switching contact, a magnetic coil assembly operable to urge the movable switching contact into contact with the fixed switching contact, and a retainer for retaining the fixed switching contact apart from the movable switching contact at a preselected interval. The retainer includes a switching contact mounting portion, a supporting portion secured to the support plate, and first and second connecting portions connecting the switching contact mounting portion and the supporting portion to form a polygonal frame structure which is so constructed as to be deformed under preselected forces applied thereto to adjust the positional relation between the movable and fixed switching contacts.
    Type: Grant
    Filed: August 5, 1993
    Date of Patent: August 16, 1994
    Assignees: Anden Co., Ltd., Nippondenso Co., Ltd.
    Inventors: Shotaro Kawamura, Hiroshi Yamada