Patents by Inventor Yasukazu Hoshino

Yasukazu Hoshino 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).

  • Magnetic plastic rotor disk manufacturing apparatus
    Patent number: 5427514
    Abstract: A magnetic plastic rotor disk manufacturing apparatus, includes an injection device for injecting a magnetic plastic material containing a synthetic resin matrix and a magnetic powder; a mold for molding the magnetic plastic material injected thereinto from the injection device, and a device for generating a magnetic field and magnetizing the magnetic powder in a direction along a diameter of the magnetic plastic rotor disks. The mold includes a three-plate type mold constructed of two retainer plates and a single runner stripper plate. One of the retainer plates is formed with a plurality of pin gates corresponding to the cavities so as to supply the magnetic plastic material through the pin gates into the cavities.
    Type: Grant
    Filed: February 24, 1994
    Date of Patent: June 27, 1995
    Assignee: Yazaki Corporation
    Inventors: Kinya Horibe, Masazumi Kawai, Yasukazu Hoshino, Koichiro Tsuji, Kiyofumi Uchida
  • Magnetic plastic rotor disk manufacturing apparatus
    Patent number: 4904175
    Abstract: A magnetic plastic rotor disk manufacturing apparatus according to the present invention is capable of manufacturing a plurality of magnetic plastic rotor disks having equal desired surface magnetic flux density distribution characteristics in a single molding cycle.
    Type: Grant
    Filed: April 25, 1989
    Date of Patent: February 27, 1990
    Assignee: Yazaki Corporation
    Inventors: Kinya Horibe, Masazumi Kawai, Yasukazu Hoshino, Koichiro Tsuji, Kiyofumi Uchida