Patents by Inventor Toyotaka Osakabe

Toyotaka Osakabe 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).

  • High-speed rotation testing apparatus
    Patent number: 6820503
    Abstract: An object of the present invention is to achieve more high-speed rotation of a rotor to which a test object is stored, extending the duration of high-speed rotation, and temperature control of a rotor at the time of high-speed rotation. A high-speed rotation testing apparatus of the present invention comprises: a rotor having a hollow for a test object, to which a predetermined test object is stored; a spindle connected to the rotor; a torque applying device for applying a predetermined torque to the spindle, and a casing for sealing the rotor. The casing comprises a decompressing device and a holder for holding the spindle. The holder has a bushing for supporting the spindle and a bushing supporting member for supporting the bushing by inserting thereto. By forming the inner diameter of at least one of the bushing supporting member larger than the outer diameter of the bushing, the bushing supporting member supports the bushing to be rotatable.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: November 23, 2004
    Assignees: Maruwa Electronic Inc.
    Inventors: Masanori Sueyoshi, Akira Tezuka, Koji Shibasaki, Xinsheng Huang, Toyotaka Osakabe, Masao Ono, Tsutomu Mashimo
  • High -speed rotation testing apparatus
    Publication number: 20030062304
    Abstract: An object of the present invention is to achieve more high-speed rotation of a rotor to which a test object is stored, extending the duration of high-speed rotation, and temperature control of a rotor at the time of high-speed rotation. A high-speed rotation testing apparatus of the present invention comprises: a rotor having a hollow for a test object, to which a predetermined test object is stored; a spindle connected to the rotor; a torque applying device for applying a predetermined torque to the spindle, and a casing for sealing the rotor. The casing comprises a decompressing device and a holder for holding the spindle. The holder has a bushing for supporting the spindle and a bushing supporting member for supporting the bushing by inserting thereto. By forming the inner diameter of at least one of the bushing supporting member larger than the outer diameter of the bushing, the bushing supporting member supports the bushing to be rotatable.
    Type: Application
    Filed: September 10, 2002
    Publication date: April 3, 2003
    Applicant: Tsutomu MASHIMO
    Inventors: Masanori Sueyoshi, Akira Tezuka, Koji Shibasaki, Xinsheng Huang, Toyotaka Osakabe, Masao Ono, Tsutomu Mashimo