Patents by Inventor Takayuki SHIIHARA

Takayuki SHIIHARA 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).

  • Dimming power supply device and light source device
    Patent number: 11116051
    Abstract: A dimming power supply device includes a case, a trigger input connector, a trigger input circuit, an FPGA writing enabling circuit, and a dimming FPGA. The trigger input circuit, the FPGA writing enabling circuit, and the dimming FPGA are disposed inside the case. A plurality of terminals are disposed in the trigger input connector. A signal input to at least one terminal of the plurality of terminals is input to the trigger input circuit. A signal input to the at least one terminal of the plurality of terminals is input to the FPGA writing enabling circuit. In an FPGA writing mode, a circuit configuration of the dimming FPGA is rewritten by inputting an output signal of the FPGA writing enabling circuit. In a dimming mode, a light source is dimmed by inputting an output signal of the trigger input circuit as a trigger.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: September 7, 2021
    Assignee: LEIMAC LTD.
    Inventors: Takayuki Shiihara, Masamitsu Takemori, Toshihiro Horiuchi
  • DIMMING POWER SUPPLY DEVICE AND LIGHT SOURCE DEVICE
    Publication number: 20210259072
    Abstract: A dimming power supply device includes a case, a trigger input connector, a trigger input circuit, an FPGA writing enabling circuit, and a dimming FPGA. The trigger input circuit, the FPGA writing enabling circuit, and the dimming FPGA are disposed inside the case. A plurality of terminals are disposed in the trigger input connector. A signal input to at least one terminal of the plurality of terminals is input to the trigger input circuit. A signal input to the at least one terminal of the plurality of terminals is input to the FPGA writing enabling circuit. In an FPGA writing mode, a circuit configuration of the dimming FPGA is rewritten by inputting an output signal of the FPGA writing enabling circuit. In a dimming mode, a light source is dimmed by inputting an output signal of the trigger input circuit as a trigger.
    Type: Application
    Filed: July 8, 2019
    Publication date: August 19, 2021
    Inventors: Takayuki SHIIHARA, Masamitsu TAKEMORI, Toshihiro HORIUCHI