Patents by Inventor Yoshio Asahino

Yoshio Asahino 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).

  • Parabolic antenna dish
    Patent number: 4916459
    Abstract: A parabolic antenna dish has a circumferential reinforcement flange portion defined by a ridge line which is devoid of air holes and a mesh plate portion integrally connected to the inner periphery of the reinforcement flange portion, the mesh plate portion having as many air holes as possible formed in a region which is not smaller than 80% in terms of the radius of the radiowave reflecting surface.
    Type: Grant
    Filed: March 16, 1987
    Date of Patent: April 10, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Kurosawa, Izumi Ochiai, Yoshio Asahino, Yoichi Wakabayashi
  • Method of forming spherical shells
    Patent number: 4748837
    Abstract: A process for manufacturing a spherical shell from a blank utilizing dies, comprising the steps of forming and clamping a flange portion of the blank by pressing with the dies and applying fluid pressure to an elastic diaphragm or flat metal sheet to cause the diaphragm or sheet to bulge the blank so as to form a curved shell surface.
    Type: Grant
    Filed: December 10, 1986
    Date of Patent: June 7, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Kurosawa, Izumi Ochiai, Yoshio Asahino
  • Rotor for electric motor
    Patent number: 4746827
    Abstract: A rotor for an electric motor including an iron core having collar portions at both end portions thereof, and a magnet placed on the outer periphery of said iron core. The magnet is held at both end portions thereof between the collar portions.
    Type: Grant
    Filed: February 17, 1987
    Date of Patent: May 24, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Izumi Ochiai, Hideo Hashida, Yoshio Asahino, Nobuhiko Yokota