Patents by Inventor Hayato Koizumi

Hayato Koizumi 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).

  • Patent number: 11532257
    Abstract: The disclosure provides a display driver and a display device which includes the display driver. A display driver according to the disclosure has a temperature abnormality detection circuit that detects a temperature inside the display driver and generates a temperature abnormality detection signal indicating the presence of a temperature abnormality when the temperature therein is higher than a predetermined temperature threshold, and a temperature abnormality notification processing part that causes a display panel to display an image for informing of occurrence of a temperature abnormality for a predetermined period instead of an image based on a video signal in accordance with the temperature abnormality detection signal.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: December 20, 2022
    Assignee: LAPIS Technology Co., Ltd.
    Inventors: Hayato Koizumi, Hiroshi Tsuchi
  • Publication number: 20220208136
    Abstract: The disclosure includes: first level shift part generating a voltage signal by converting an input voltage signal into amplitude between first negative and positive polarity power supply voltages; second level shift part generating a first polarity voltage signal by converting the voltage signal into amplitude between a reference and the first positive polarity power supply voltage; third level shift part outputting a first-polarity high voltage signal by converting the first polarity voltage signal into amplitude between a higher second positive polarity power supply voltage and the reference; fourth level shift part generating a second polarity voltage signal by converting the voltage signal into amplitude between the reference and the first negative polarity power supply voltage; and fifth level shift part outputting a second-polarity high voltage signal by converting the second polarity voltage signal into amplitude between a lower second negative polarity power supply voltage and the reference.
    Type: Application
    Filed: December 19, 2021
    Publication date: June 30, 2022
    Applicant: LAPIS Technology Co., Ltd.
    Inventors: Hiroshi TSUCHI, Hayato KOIZUMI
  • Publication number: 20220139285
    Abstract: The disclosure provides a display driver and a display device which includes the display driver. A display driver according to the disclosure has a temperature abnormality detection circuit that detects a temperature inside the display driver and generates a temperature abnormality detection signal indicating the presence of a temperature abnormality when the temperature therein is higher than a predetermined temperature threshold, and a temperature abnormality notification processing part that causes a display panel to display an image for informing of occurrence of a temperature abnormality for a predetermined period instead of an image based on a video signal in accordance with the temperature abnormality detection signal.
    Type: Application
    Filed: November 1, 2021
    Publication date: May 5, 2022
    Applicant: LAPIS Technology Co., Ltd.
    Inventors: Hayato KOIZUMI, Hiroshi TSUCHI
  • Patent number: 7420903
    Abstract: Disclosed is electronic equipment enjoying improved ease of use, and a highlighting method and a program to be implemented or installed in the electronic equipment. For example, a user performs manipulations so as to reproduce a content up to the middle of the content, and then turns off a power supply. When the user turns on the power supply next, a playback selection menu screen image is displayed and “Playback from the middle thereof” is highlighted. Consequently, when the user wants to reproduce the content from the middle of the content, the user need not worry about whether to reproduce the content from the beginning or the middle thereof. The user should merely finalize the highlighted item. This would prove user-friendly and helpful. When the electronic equipment is used outdoors or the like, the number of manipulations to be performed on the equipment is smaller than the number of manipulations conventionally performed.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: September 2, 2008
    Assignee: Sony Corporation
    Inventors: Atsushi Sakurai, Hayato Koizumi, Junichiro Sakata, Tomoyuki Oguchi
  • Publication number: 20050147384
    Abstract: Disclosed is electronic equipment enjoying improved ease of use, and a highlighting method and a program to be implemented or installed in the electronic equipment. For example, a user performs manipulations so as to reproduce a content up to the middle of the content, and then turns off a power supply. When the user turns on the power supply next, a playback selection menu screen image is displayed and “Playback from the middle thereof” is highlighted. Consequently, when the user wants to reproduce the content from the middle of the content, the user need not worry about whether to reproduce the content from the beginning or the middle thereof. The user should merely finalize the highlighted item. This would prove user-friendly and helpful. When the electronic equipment is used outdoors or the like, the number of manipulations to be performed on the equipment is smaller than the number of manipulations conventionally performed.
    Type: Application
    Filed: October 29, 2004
    Publication date: July 7, 2005
    Applicant: SONY CORPORATION
    Inventors: Atsushi Sakurai, Hayato Koizumi, Junichiro Sakata, Tomoyuki Oguchi