Patents by Inventor Kohei Nagaoka

Kohei Nagaoka 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).

  • Gate driver
    Patent number: 9729135
    Abstract: In a gate driver for driving a first transistor, the gate driver includes first, second and third push-pull circuits, in each of the push-pull circuits, two transistors are connected in series, an output terminal of the first push-pull circuit is connected to the gate of the first transistor, an output terminal of the second push-pull circuit is connected to the gate of a second transistor included in the first push-pull circuit and an output terminal of the third push-pull circuit is connected to the gate of a third transistor included in the first push-pull circuit.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: August 8, 2017
    Assignees: Rohm Co., Ltd., Kyoto University
    Inventors: Atsushi Yamaguchi, Kentaro Chikamatsu, Takashi Hikihara, Kohei Nagaoka
  • GATE DRIVER
    Publication number: 20160087623
    Abstract: In a gate driver for driving a first transistor, the gate driver includes first, second and third push-pull circuits, in each of the push-pull circuits, two transistors are connected in series, an output terminal of the first push-pull circuit is connected to the gate of the first transistor, an output terminal of the second push-pull circuit is connected to the gate of a second transistor included in the first push-pull circuit and an output terminal of the third push-pull circuit is connected to the gate of a third transistor included in the first push-pull circuit.
    Type: Application
    Filed: September 21, 2015
    Publication date: March 24, 2016
    Inventors: Atsushi Yamaguchi, Kentaro Chikamatsu, Takashi Hikihara, Kohei Nagaoka