Patents by Inventor Ryu Inoue

Ryu Inoue 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).

  • Externally pressurized gas bearing and spindle equipment using this
    Patent number: 7066652
    Abstract: An externally pressurized gas bearing comprising a main shaft, and journal bearing sections having a plurality of axial gas feed rows each having a plurality of circumferentially equispaced gas feed holes, the gas feed holes in the gas feed rows being adapted to spout compressed gas to thereby rotatably radially support the main shaft in a non-contact state, the externally pressurized gas bearing being arranged so that the gas feed holes in the gas feed row are disposed so as to be positioned circumferentially intermediate between gas feed holes in the adjoining gas feed row.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: June 27, 2006
    Assignee: NTN Corporation
    Inventors: Yoshio Fujikawa, Kiyotaka Kusunoki, Kazuyuki Aono, Ryu Inoue
  • Externally pressurized gas bearing and spindle equipment using this
    Publication number: 20040109622
    Abstract: An externally pressurized gas bearing comprising a main shaft, and journal bearing sections having a plurality of axial gas feed rows each having a plurality of circumferentially equispaced gas feed holes, the gas feed holes in the gas feed rows being adapted to spout compressed gas to thereby rotatably radially support the main shaft in a non-contact state, the externally pressurized gas bearing being arranged so that the gas feed holes in the gas feed row are disposed so as to be positioned circumferentially intermediate between gas feed holes in the adjoining gas feed row.
    Type: Application
    Filed: April 9, 2003
    Publication date: June 10, 2004
    Inventors: Yoshio Fujikawa, Kiyotaka Kusunoki, Kazuyuki Aono, Ryu Inoue