Patents by Inventor Norikazu Yagi

Norikazu Yagi 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).

  • LED driver device, and television receiver
    Patent number: 9565728
    Abstract: An LED drive circuit (1) includes: a booster circuit (2); a light emitting pattern generator (5); and a switching switch (3) for, (i) during an on period, feeding back, to the booster circuit (2), an electric current flowing to an LED (7), and (ii) during an off period, feeding back, to the booster circuit (2), a voltage signal obtained by dividing an output voltage of the booster circuit (2).
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: February 7, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Norikazu Yagi
  • LED DRIVER DEVICE, AND TELEVISION RECEIVER
    Publication number: 20150181660
    Abstract: An LED drive circuit (1) includes: a booster circuit (2); a light emitting pattern generator (5); and a switching switch (3) for, (i) during an on period, feeding back, to the booster circuit (2), an electric current flowing to an LED (7), and (ii) during an off period, feeding back, to the booster circuit (2), a voltage signal obtained by dividing an output voltage of the booster circuit (2).
    Type: Application
    Filed: June 13, 2013
    Publication date: June 25, 2015
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Norikazu Yagi