Patents by Inventor Toshiyuki Omuro

Toshiyuki Omuro 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).

  • Control device for magnetic field generator, test apparatus, and magnetic field control method
    Patent number: 11604232
    Abstract: A control device controls a magnetic field generated by a magnetic field generator, and includes a magnetic field controller that controls the magnetic field generator based on a detected value by a magnetic field sensor. The magnetic field controller receives a command value generated by the magnetic field generator, and the detected value. The magnetic field controller generates an error signal based on an error between the command value and the detected value and outputs to the magnetic field generator a control signal amplified by a control gain against the error. The control gain includes: a first gain that becomes smaller as a frequency of the error signal gets higher; and a second gain that gets larger as an amplitude of the error signal gets larger.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: March 14, 2023
    Assignee: ADVANTEST Corporation
    Inventors: Toshiyuki Omuro, Takashi Kimura
  • CONTROL DEVICE FOR MAGNETIC FIELD GENERATOR, TEST APPARATUS, AND MAGNETIC FIELD CONTROL METHOD
    Publication number: 20220260649
    Abstract: A control device controls a magnetic field generated by a magnetic field generator, and includes a magnetic field controller that controls the magnetic field generator based on a detected value by a magnetic field sensor. The magnetic field controller receives a command value generated by the magnetic field generator, and the detected value. The magnetic field controller generates an error signal based on an error between the command value and the detected value and outputs to the magnetic field generator a control signal amplified by a control gain against the error. The control gain includes: a first gain that becomes smaller as a frequency of the error signal gets higher; and a second gain that gets larger as an amplitude of the error signal gets larger.
    Type: Application
    Filed: December 7, 2021
    Publication date: August 18, 2022
    Applicant: ADVANTEST Corporation
    Inventors: Toshiyuki Omuro, Takashi Kimura