Patents by Inventor Takahiro KOGURE

Takahiro KOGURE 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).

  • Electromagnetic valve drive device
    Patent number: 11300067
    Abstract: An electromagnetic valve drive device, that drives a fuel injection valve having a solenoid coil, includes a drive unit configured to drive the solenoid coil, an energization control unit configured to control energization for the solenoid coil by controlling the drive unit, a processing unit configured to obtain a current value arrival time, which is a time having elapsed from a start of energization for the solenoid coil until a current flowing through the solenoid coil reaches a predetermined current value, and an estimation unit configured to estimate a valve opening start time, which is a time from the start of the energization to a start of opening of the fuel injection valve on the basis of the current value arrival time.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: April 12, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Noriaki Sumisha, Takahiro Kogure, Kyohei Matsumoto, Daichi Kawakami
  • ELECTROMAGNETIC VALVE DRIVE DEVICE
    Publication number: 20210301748
    Abstract: An electromagnetic valve drive device, that drives a fuel injection valve having a solenoid coil, includes a drive unit configured to drive the solenoid coil, an energization control unit configured to control energization for the solenoid coil by controlling the drive unit, a processing unit configured to obtain a current value arrival time, which is a time having elapsed from a start of energization for the solenoid coil until a current flowing through the solenoid coil reaches a predetermined current value, and an estimation unit configured to estimate a valve opening start time, which is a time from the start of the energization to a start of opening of the fuel injection valve on the basis of the current value arrival time.
    Type: Application
    Filed: December 22, 2020
    Publication date: September 30, 2021
    Inventors: Noriaki SUMISHA, Takahiro KOGURE, Kyohei MATSUMOTO, Daichi KAWAKAMI