Patents by Inventor Takenori Tada

Takenori Tada 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).

  • Superconduction bearing
    Patent number: 5313130
    Abstract: A superconduction bearing is provided in which the load capacity and rigidity of a rotary member are improved, run-out of the rotary member is prevented to support the rotary member in a stable, non-contacting manner, and manufacturing cost is reduced. The superconduction bearing includes a rotary member and a disk formed on the rotary member. The disk has permanent magnets provided thereon. The permanent magnets are magnetized to have opposite poles on top and bottom sides thereof. A permanent magnet section is thus formed by the disk and the permanent magnets. Superconductors are concentrically provided for rotatably supporting the rotary member. The permanent magnet section and the superconductor section are positioned opposite to each other. The width and thickness of the permanent magnets are set to 5 to 10 times the distance between the permanent magnet section and the superconductor section.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: May 17, 1994
    Assignees: Kabushiki Kaisha Shikoku Sogo Kenkyusho, Shikoku Denryoku Kabushiki Kaisha, Mitsubishi Denki Kabushiki Kaisha, Seiko Epson Corporation
    Inventors: Motoaki Shibayama, Takenori Tada, Terutsugu Oyama, Fumihiko Ishikawa, Hiromasa Higasa