Patents by Inventor Miyako Komoriya

Miyako Komoriya 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).

  • Turbomolecular pump
    Patent number: 6604918
    Abstract: A turbomolecular pump has rotor blades and at least one pair of electromagnets for levitating the rotor blades and for controlling one of a radial position and an axial position of the rotor. A current supplying device supplies a current to the electromagnets. A detecting device detects a current flowing through the electromagnets. A stopping device stops the supply of current to the electromagnets by the current supplying device when a duration of time during which the current detected by the detecting device exceeds a preselected current value is greater than a preselected duration of time.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: August 12, 2003
    Assignee: Seiko Instruments Inc.
    Inventor: Miyako Komoriya
  • Magnetic bearing protective device and turbomolecular pump
    Publication number: 20020155013
    Abstract: To provide a magnetic bearing protective device and a turbomolecular pump in which stable control can be held against the excessive oscillation of a rotator and an externally given shake.
    Type: Application
    Filed: June 6, 2002
    Publication date: October 24, 2002
    Applicant: SEIKO INSTRUMENTS INC.
    Inventor: Miyako Komoriya
  • Magnetic bearing protection device
    Patent number: 6422837
    Abstract: A magnetic bearing protection device has at least one pair of electromagnets for levitating a rotor and for controlling one of a radial position and an axial position of the rotor. A current supplying device supplies a current to the electromagnets. A detecting device detects a current flowing through the electromagnets. A stopping device stops the supply of current to the electromagnets by the current supplying device when a duration of time during which the current detected by the detecting device exceeds a preselected current value is greater than a preselected duration of time.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: July 23, 2002
    Assignee: Seiko Instruments Inc.
    Inventor: Miyako Komoriya