Patents by Inventor Satoru Aihara

Satoru Aihara 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).

  • Superconducting bearing unit and operating method thereof
    Patent number: 5341059
    Abstract: A superconducting bearing unit compring a permanent magnet mounted to a rotating shaft and a superconducting body mounted on the inner periphery of a housing surrounding the shaft, the superconducting member being adapted to be cooled with the rotating shaft moved upwards until it attains a superconducting condition, so that the rotating shaft is supported in use in a balanced condition between the weight of the rotating shaft, etc. and a pinning force caused by the permanent magnet and the superconducting member.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: August 23, 1994
    Assignees: International Superconductivity Technology Center, Nippon Steel Corporation, Railway Technical Research Institute, Kawasaki Jukogyo Kabushiki Kaisha, Shikoku Electric Power Co., Inc.
    Inventors: Hiromasa Fukuyama, Satoru Aihara, Masato Murakami, Hiroyuki Fujimoto, Akihiro Kondoh, Hiroshi Takaichi, Naoki Koshizuka
  • Rolling/sliding part
    Patent number: 5333954
    Abstract: A part with excellent wear resistance when subjected to both sliding friction and rolling friction has a layer in the range from 0 to 50 microns beneath the surface with a maximum compressive residual stress of at least 90 kgf/mm.sup.2, and a hardness of at least Hv 780. The average radius of curvature of tips of minute protrusions existing on the surface is made at least 90 microns.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: August 2, 1994
    Assignee: NSK Ltd.
    Inventors: Shoji Noguchi, Satoru Aihara