Patents by Inventor Soichi Yokoyama

Soichi Yokoyama 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).

  • METHOD FOR CONTROLLING HIGH-FREQUENCY POWER SUPPLY DEVICE, AND HIGH-FREQUENCY POWER SUPPLY DEVICE
    Publication number: 20230073768
    Abstract: The present invention controls, within a frequency range, an output command value not to exceed the upper limit of an output command permitted by a high-frequency amplifier. A method for controlling a high-frequency power supply device and the high-frequency power supply device involve performing frequency control within a frequency range of variable frequencies, limiting the upper limit of an output command value for controlling an output of a high-frequency amplifier within the frequency range of variable frequencies on the basis of an output limit value, and thereby preventing damaging of the high-frequency amplifier caused by an excessive command.
    Type: Application
    Filed: February 12, 2021
    Publication date: March 9, 2023
    Applicant: KYOSAN ELECTRIC MFG. CO., LTD.
    Inventors: Atsushi Takayanagi, Toshinori Takeuchi, Hirokazu Takada, Soichi Yokoyama, Hiro Nakayama