Patents by Inventor Masakatsu HORIGUCHI

Masakatsu HORIGUCHI 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: 20210018567
    Abstract: A battery monitoring apparatus includes an electric power supply terminal connected with a first electrical path, a voltage input terminal connected with a second electrical path, a signal control unit connected with a third electrical path, a response signal input terminal connected with a fourth electrical path, and a calculating unit. The signal control unit is configured to cause a predetermined AC signal to be outputted from a storage battery with the storage battery itself being an electric power source for the output of the predetermined AC signal. The calculating unit is configured to calculate, based on a response signal of the storage battery to the predetermined AC signal, a complex impedance of the storage battery. Moreover, at least one of the first to the fourth electrical paths is merged with at least one of the other electrical paths into an electrical path that is connected to the storage battery.
    Type: Application
    Filed: July 10, 2020
    Publication date: January 21, 2021
    Applicant: DENSO CORPORATION
    Inventors: Masakatsu HORIGUCHI, Masaaki KITAGAWA
  • Patent number: 10175283
    Abstract: A determining device determining electrical leakage in a specified circuit having a voltage source, includes: an AC-signal-output unit that outputs an AC signal to a signal line connected to the specified circuit; a detecting unit that detects a peak value of the AC signal; and a determining unit determining electrical leakage of the specified circuit based on the peak value. The specified circuit includes switching elements switching the connection between the voltage source and a specified voltage to be conduction or blocking; and a determining device prohibits overlapping of the point of time when the switching elements are switched from conduction to blocking or the point of time when switched from the blocking state to the conducting state, and the period from the point of time when the AC-signal-output unit starts outputting the AC signal until the detecting unit detects the peak value of the AC signal.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: January 8, 2019
    Assignee: DENSO CORPORATION
    Inventor: Masakatsu Horiguchi
  • Patent number: 10161982
    Abstract: A failure inspection system includes a main circuit section, an electrically conductive member, capacitors, a signal generating section, a measurement section and a judgement section. The signal generating section generates a high-frequency AC signal and a low-frequency AC signal. The judgement section determines whether either one of two types of failure has occurred based on the voltage or the current of the high-frequency AC signal. If it is determined that a failure is occurring, the judgment section specifies that which of failures, a leakage current failure or a short-circuit failure, the failure that has occurred is, based on a measurement value of the low-frequency AC signal derived from the measurement section.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: December 25, 2018
    Assignee: DENSO CORPORATION
    Inventors: Takashi Inamoto, Masakatsu Horiguchi
  • Publication number: 20180038904
    Abstract: A determining device determining electrical leakage in a specified circuit having a voltage source, includes: an AC-signal-output unit that outputs an AC signal to a signal line connected to the specified circuit; a detecting unit that detects a peak value of the AC signal; and a determining unit determining electrical leakage of the specified circuit based on the peak value. The specified circuit includes switching elements switching the connection between the voltage source and a specified voltage to be conduction or blocking; and a determining device prohibits overlapping of the point of time when the switching elements are switched from conduction to blocking or the point of time when switched from the blocking state to the conducting state, and the period from the point of time when the AC-signal-output unit starts outputting the AC signal until the detecting unit detects the peak value of the AC signal.
    Type: Application
    Filed: August 7, 2017
    Publication date: February 8, 2018
    Applicant: DENSO CORPORATION
    Inventor: Masakatsu HORIGUCHI
  • Publication number: 20170131339
    Abstract: A failure inspection system includes a main circuit section, an electrically conductive member, capacitors, a signal generating section, a measurement section and a judgement section. The signal generating section generates a high-frequency AC signal and a low-frequency AC signal. The judgement section determines whether either one of two types of failure has occurred based on the voltage or the current of the high-frequency AC signal. If it is determined that a failure is occurring, the judgment section specifies that which of failures, a leakage current failure or a short-circuit failure, the failure that has occurred is, based on a measurement value of the low-frequency AC signal derived from the measurement section.
    Type: Application
    Filed: November 10, 2016
    Publication date: May 11, 2017
    Applicant: DENSO CORPORATION
    Inventors: Takashi INAMOTO, Masakatsu HORIGUCHI
  • Patent number: 9583290
    Abstract: A solenoid device includes at least one electromagnetic coil for generating a magnetic flux when energized, a fixed core constituting part of a magnetic circuit through which the magnetic flux passes, and plungers constituting the magnetic circuit together with the fixed core and configured to advance to and retract from the fixed core depending on whether the magnetic coil is energized or de-energized. The magnetic circuit is provided with a magnetic resistance part as a resistance for the magnetic flux. The plungers are configured to be attracted to the fixed core by energizing the electromagnetic coil.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: February 28, 2017
    Assignees: NIPPON SOKEN, INC., ANDEN CO., LTD.
    Inventors: Masakatsu Horiguchi, Ken Tanaka, Tomoaki Tanaka, Takashi Ito
  • Publication number: 20150042422
    Abstract: A solenoid device includes at least one electromagnetic coil for generating a magnetic flux when energized, a fixed core constituting part of a magnetic circuit through which the magnetic flux passes, and plungers constituting the magnetic circuit together with the fixed core and configured to advance to and retract from the fixed core depending on whether the magnetic coil is energized or de-energized. The magnetic circuit is provided with a magnetic resistance part as a resistance for the magnetic flux. The plungers are configured to be attracted to the fixed core by energizing the electromagnetic coil.
    Type: Application
    Filed: August 8, 2014
    Publication date: February 12, 2015
    Inventors: Masakatsu HORIGUCHI, Ken TANAKA, Tomoaki TANAKA, Takashi ITO