Patents by Inventor Shota MIHARA

Shota MIHARA 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).

  • Patent number: 11955959
    Abstract: A parallel driving device that drives parallel-connected semiconductor elements includes a control unit and a gate driving circuit. The control unit detects a temperature difference between the semiconductor elements on the basis of detected values by temperature sensors that detect temperatures of the individual semiconductor elements. The control unit generates a control signal for changing the timing at which to turn on a first semiconductor element specified from the semiconductor elements on the basis of the temperature difference. The gate driving circuit generates a first driving signal for driving the semiconductor elements, and generates a second driving signal that is the first driving signal delayed on the basis of the control signal, and applies the second driving signal to the first semiconductor element.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: April 9, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yasushi Nakayama, Yoshiko Tamada, Takayoshi Miki, Shota Morisaki, Yukio Nakashima, Kenta Uchida, Keisuke Kimura, Tomonobu Mihara
  • Publication number: 20230329781
    Abstract: A plasma ablation system includes a plasma guide wire having a conductive first electrode formed on a distal end portion, a catheter having a conductive second electrode formed on a distal end side and a lumen through which the plasma guide wire is inserted, and a radio frequency (RF) generator electrically connected to each of the plasma guide wire and the catheter to output a high frequency electric power to the first electrode and the second electrode. The plasma guide wire can ablate a living body tissue by discharge between the first electrode and the second electrode, and the RF generator outputs the high frequency electric power that is 50 W or higher and 100 W or lower during discharge and pulse-modulated to have a duty ratio of 7.4% or higher and 40.0% or lower.
    Type: Application
    Filed: June 20, 2023
    Publication date: October 19, 2023
    Applicant: Asahi Intecc Co., Ltd.
    Inventors: Yotaro NISHIO, Takaaki MAGARA, Shumpei YOSHITAKE, Shota MIHARA, Kensuke SAKATA
  • Publication number: 20230329782
    Abstract: A catheter includes a hollow shaft; a distal end electrode provided on a distal end portion of the hollow shaft; a proximal end electrode provided on a proximal end portion of the hollow shaft, and which is electrically connected to the distal end electrode via the hollow shaft; and a connection portion which is capable of being attached to and detached from the proximal end electrode and which, by being attached to the proximal end electrode, electrically connects an external voltage output device and the proximal end electrode via a lead wire.
    Type: Application
    Filed: June 23, 2023
    Publication date: October 19, 2023
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Kenta KAWAMURA, Shota MIHARA, Kei SUGAWARA, Kensuke SAKATA