Patents by Inventor Syouhei YANAGIDU

Syouhei YANAGIDU 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).

  • Vehicular display system
    Patent number: 9776559
    Abstract: In one embodiment of the vehicular display system, the drawing unit operates when the vehicle speed is within a predetermined low speed area, starts an operation thereof when the vehicle speed becomes above a lower limit of the low speed area, and stops the operation thereof when the vehicle speed exceeds an upper limit of the low speed area.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: October 3, 2017
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Michihiko Hayakawa, Takao Muramatsu, Naoki Sugiura, Syouhei Yanagidu, Satoshi Kikuchi, Hiroaki Hara, Takayoshi Ishizuka, Hidetada Tanaka, Takeshi Masuda
  • VEHICULAR DISPLAY SYSTEM
    Publication number: 20160297357
    Abstract: In one embodiment of the vehicular display system, the drawing unit operates when the vehicle speed is within a predetermined low speed area, starts an operation thereof when the vehicle speed becomes above a lower limit of the low speed area, and stops the operation thereof when the vehicle speed exceeds an upper limit of the low speed area.
    Type: Application
    Filed: April 6, 2016
    Publication date: October 13, 2016
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Michihiko HAYAKAWA, Takao MURAMATSU, Naoki SUGIURA, Syouhei YANAGIDU, Satoshi KIKUCHI, Hiroaki HARA, Takayoshi ISHIZUKA, Hidetada TANAKA, Takeshi MASUDA
  • Vehicle lamp and vehicle lamp driving device
    Patent number: 9386646
    Abstract: There is provided a driving device which is used together with a light source including a plurality of light emitting units connected in series to configure a vehicle lamp. The driving device includes a current source which is configure to supply a drive current to the light source, and N bypass circuits which are provided in parallel to N light emitting units, respectively. Each of the bypass circuits includes a bypass transistor which is provided in parallel to a corresponding light emitting unit, a feedback capacitor which is provided between a gate and a drain of the bypass transistor, and a gate drive circuit which is configured to supply a drive voltage between the gate and a source of the bypass transistor according to a control signal.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: July 5, 2016
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Masayasu Ito, Takao Muramatsu, Syouhei Yanagidu
  • VEHICLE LAMP AND VEHICLE LAMP DRIVING DEVICE
    Publication number: 20150264754
    Abstract: There is provided a driving device which is used together with a light source including a plurality of light emitting units connected in series to configure a vehicle lamp. The driving device includes a current source which is configure to supply a drive current to the light source, and N bypass circuits which are provided in parallel to N light emitting units, respectively. Each of the bypass circuits includes a bypass transistor which is provided in parallel to a corresponding light emitting unit, a feedback capacitor which is provided between a gate and a drain of the bypass transistor, and a gate drive circuit which is configured to supply a drive voltage between the gate and a source of the bypass transistor according to a control signal.
    Type: Application
    Filed: March 13, 2015
    Publication date: September 17, 2015
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Masayasu ITO, Takao MURAMATSU, Syouhei YANAGIDU