Patents by Inventor Shoko YAMOTO

Shoko YAMOTO 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 frequency generating device and high frequency generating method used in plasma ignition apparatus
    Patent number: 9826620
    Abstract: A high frequency generating device used in a plasma ignition apparatus according to an embodiment includes a high frequency output unit, an output control unit, a current detecting unit, and an abnormality detecting unit. The high frequency output unit outputs a high frequency. The output control unit shifts a state of the high frequency output unit from a non-output state to an output-ready state of the high frequency. The current detecting unit detects a current that flows through a power-supply path to the high frequency output unit. The abnormality detecting unit detects output abnormality of the high frequency in the non-output state when a value of a current detected by the current detecting unit in the non-output state exceeds a non-output threshold.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: November 21, 2017
    Assignee: FUJITSU TEN LIMITED
    Inventors: Masashi Shibayama, Shoko Yamoto, Jyunya Tokinaga, Yusuke Masuda, Saori Aiba, Akio Okahara
  • Control device of plasma ignition apparatus and plasma ignition apparatus
    Patent number: 9695794
    Abstract: A control device of a plasma ignition apparatus according to an embodiment includes a plug socket, an oscillation unit, and an amplification unit. The plug socket holds an ignition plug, and a high voltage generated by an ignition coil is transmitted to the ignition plug through the plug socket. The oscillation unit oscillates a high frequency. The amplification unit amplifies the high frequency oscillated by the oscillation unit. The oscillation unit is arranged outside of the plug socket and the amplification unit is arranged inside of the plug socket.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: July 4, 2017
    Assignee: FUJITSU TEN LIMITED
    Inventors: Shoko Yamoto, Akio Okahara, Yusuke Masuda
  • HIGH FREQUENCY GENERATING DEVICE AND HIGH FREQUENCY GENERATING METHOD USED IN PLASMA IGNITION APPARATUS
    Publication number: 20170064805
    Abstract: A high frequency generating device used in a plasma ignition apparatus according to an embodiment includes a high frequency output unit, an output control unit, a current detecting unit, and an abnormality detecting unit. The high frequency output unit outputs a high frequency. The output control unit shifts a state of the high frequency output unit from a non-output state to an output-ready state of the high frequency. The current detecting unit detects a current that flows through a power-supply path to the high frequency output unit. The abnormality detecting unit detects output abnormality of the high frequency in the non-output state when a value of a current detected by the current detecting unit in the non-output state exceeds a non-output threshold.
    Type: Application
    Filed: July 12, 2016
    Publication date: March 2, 2017
    Applicant: FUJITSU TEN LIMITED
    Inventors: Masashi SHIBAYAMA, Shoko YAMOTO, Jyunya TOKINAGA, Yusuke MASUDA, Saori AIBA, Akio OKAHARA
  • CONTROL DEVICE OF PLASMA IGNITION APPARATUS AND PLASMA IGNITION APPARATUS
    Publication number: 20170037827
    Abstract: A control device of a plasma ignition apparatus according to an embodiment includes a plug socket, an oscillation unit, and an amplification unit. The plug socket holds an ignition plug, and a high voltage generated by an ignition coil is transmitted to the ignition plug through the plug socket. The oscillation unit oscillates a high frequency. The amplification unit amplifies the high frequency oscillated by the oscillation unit. The oscillation unit is arranged outside of the plug socket and the amplification unit is arranged inside of the plug socket.
    Type: Application
    Filed: July 7, 2016
    Publication date: February 9, 2017
    Applicant: FUJITSU TEN LIMITED
    Inventors: Shoko YAMOTO, Akio OKAHARA, Yusuke MASUDA