Patents by Inventor Hiroki WACHI

Hiroki WACHI 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).

  • Semiconductor device
    Patent number: 11840096
    Abstract: A semiconductor device is adapted for controlling energization of a heating element that performs printing. The semiconductor device includes: a strobe signal input unit receiving a printing strobe signal that causes the heating element to generate heat for printing; a preheating strobe generation circuit generating a preheating strobe signal that causes the heating element to preheat by compressing a waveform of the printing strobe signal in a time axis direction; and an output controller outputting a control signal that controls energization of the heating element based on the printing strobe signal and the preheating strobe signal.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: December 12, 2023
    Assignees: SEIKO EPSON CORPORATION, ROHM Co., Ltd.
    Inventors: Hiroki Wachi, Koji Nishi, Tomohiro Nishimura
  • SEMICONDUCTOR DEVICE
    Publication number: 20210323316
    Abstract: A semiconductor device is adapted for controlling energization of a heating element that performs printing. The semiconductor device includes: a strobe signal input unit receiving a printing strobe signal that causes the heating element to generate heat for printing; a preheating strobe generation circuit generating a preheating strobe signal that causes the heating element to preheat by compressing a waveform of the printing strobe signal in a time axis direction; and an output controller outputting a control signal that controls energization of the heating element based on the printing strobe signal and the preheating strobe signal.
    Type: Application
    Filed: April 15, 2021
    Publication date: October 21, 2021
    Applicants: SEIKO EPSON CORPORATION, ROHM Co., Ltd.
    Inventors: Hiroki WACHI, Koji NISHI, Tomohiro NISHIMURA