Patents by Inventor Youichirou KOBAYASHI

Youichirou KOBAYASHI 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).

  • Publication number: 20180141566
    Abstract: Provided is a semiconductor integrated circuit which can continuously and stably generate an output value even after shipment and a vehicle-mounted control device using the semiconductor integrated circuit. The present invention includes a reference signal generation unit for outputting a reference signal, and detects the operation state of a semiconductor circuit on the basis of a difference between output values from the semiconductor circuit corresponding to the reference signals output at two different time points by the reference signal generation unit.
    Type: Application
    Filed: July 6, 2016
    Publication date: May 24, 2018
    Inventors: Youichirou KOBAYASHI, Masahito SONEHARA
  • Patent number: 9906215
    Abstract: A load-driving circuit for receiving a supply of power from a power source and driving a load, wherein the load-driving circuit is provided with: a high-side switching element; a low-side switching element; a high-side current detection circuit connected in parallel to the high-side switching element, the high-side current detection circuit detecting a high-side driving current; and a fault detection circuit for detecting the fault state of the load-driving circuit from the output result of the high-side current detection circuit. The high-side current detection circuit is provided with a high-side sense switching circuit operating in response to a gate signal that is different from the high-side switching element, the high-side sense switching circuit comprising a device of the same type as the high-side switching element.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: February 27, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Masahito Sonehara, Youichirou Kobayashi
  • Publication number: 20170179939
    Abstract: A load-driving circuit for receiving a supply of power from a power source and driving a load, wherein the load-driving circuit is provided with: a high-side switching element; a low-side switching element; a high-side current detection circuit connected in parallel to the high-side switching element, the high-side current detection circuit detecting a high-side driving current; and a fault detection circuit for detecting the fault state of the load-driving circuit from the output result of the high-side current detection circuit. The high-side current detection circuit is provided with a high-side sense switching circuit operating in response to a gate signal that is different from the high-side switching element, the high-side sense switching circuit comprising a device of the same type as the high-side switching element.
    Type: Application
    Filed: December 8, 2014
    Publication date: June 22, 2017
    Inventors: Masahito SONEHARA, Youichirou KOBAYASHI