Patents by Inventor Tomoo OTA

Tomoo OTA 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).

  • Vacuum pump including magnetic bearing and motor bearing operable as radial magnetic bearing, motor, and thrust magnetic bearing
    Patent number: 12117009
    Abstract: A rotation mechanism (20) of a vacuum pump (100) includes a magnetic bearing unit (21) having a first outer diameter (91), the magnetic bearing unit (21) being operable as a first radial magnetic bearing (40), and a motor unit (22) provided on a side of a second end (11b) of a rotary shaft (11) relative to the magnetic bearing unit, the motor unit (22) having a second outer diameter (92) larger than the first outer diameter, the motor unit (22) being operable as both a motor (30) and a second radial magnetic bearing (50).
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: October 15, 2024
    Assignee: SHIMADZU CORPORATION
    Inventors: Takahiro Mori, Tsunehiro Inoue, Tomoo Ota
  • Vacuum pump and magnetic-bearing-integrated motor
    Patent number: 12009726
    Abstract: A vacuum pump (100) includes a rotor (22b), a rotor blade (13), and a magnetic-bearing-integrated stator (22a) including a coil. The rotor includes a pair of spacer members (29), a support member (27), a permanent magnet (26), and a protective ring (28), and in an axial direction of a rotary shaft (11), the support member has a mechanical strength higher than that of the protective ring.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: June 11, 2024
    Assignee: SHIMADZU CORPORATION
    Inventors: Takahiro Mori, Tsunehiro Inoue, Tomoo Ota, Masatsugu Takemoto, Yu Fu
  • Vacuum Pump and Magnetic-Bearing-Integrated Motor
    Publication number: 20220216767
    Abstract: A vacuum pump (100) includes a rotor (22b), a rotor blade (13), and a magnetic-bearing-integrated stator (22a) including a coil. The rotor includes a pair of spacer members (29), a support member (27), a permanent magnet (26), and a protective ring (28), and in an axial direction of a rotary shaft (11), the support member has a mechanical strength higher than that of the protective ring.
    Type: Application
    Filed: May 24, 2019
    Publication date: July 7, 2022
    Inventors: Takahiro MORI, Tsunehiro INOUE, Tomoo OTA, Masatsugu TAKEMOTO, Yu FU
  • Vacuum Pump
    Publication number: 20220205449
    Abstract: A rotation mechanism (20) of a vacuum pump (100) includes a magnetic bearing unit (21) having a first outer diameter (91), the magnetic bearing unit (21) being operable as a first radial magnetic bearing (40), and a motor unit (22) provided on a side of a second end (11b) of a rotary shaft (11) relative to the magnetic bearing unit, the motor unit (22) having a second outer diameter (92) larger than the first outer diameter, the motor unit (22) being operable as both a motor (30) and a second radial magnetic bearing (50).
    Type: Application
    Filed: April 25, 2019
    Publication date: June 30, 2022
    Inventors: Takahiro MORI, Tsunehiro INOUE, Tomoo OTA