Patents by Inventor Saburo Kazama

Saburo Kazama 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).

  • Rotary head apparatus with motor magnet and yoke surrounding motor stator coil
    Patent number: 4875110
    Abstract: A rotary head apparatus includes magnetic heads on its outer peripheral portion and rotatably supported in a hollow space defined by fixed hollow upper and lower cylindrical drums, a brushless motor stator coil attached to one or the other of the fixed drums, and a brushless motor magnet and yoke, or a first and a second magnets, arranged on the rotary head apparatus on both sides of the stator coil with a gap therebetween.
    Type: Grant
    Filed: October 8, 1986
    Date of Patent: October 17, 1989
    Assignee: Hitachi Ltd.
    Inventors: Saburo Kazama, Akira Tamura
  • Apparatus for separating non-magnetic materials of different densities
    Patent number: 4113608
    Abstract: An apparatus for separating non-magnetic materials of different densities, which apparatus includes a material separating portion, in which a magnetic fluid is retained in a magnetic field having a gradient in a vertical direction. In this apparatus, a single conveyor is jointly used for the supply, and charging of materials to be separated, into the material separating portion, and the transporting of floating materials of a low density through the magnetic fluid and their recovery outside.
    Type: Grant
    Filed: September 3, 1976
    Date of Patent: September 12, 1978
    Assignee: Agency of Industrial Science and Technology
    Inventors: Saburo Kazama, Hideo Abe, Isao Satoh, Takashi Ikeguchi, Shunsuke Nogita, Masayoshi Kubota, Kiyoshi Muramori