Patents by Inventor Masamichi Harada

Masamichi Harada 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: 11598340
    Abstract: A power supply controller includes a driver having a circuit board and controlling an operation of an electric oil pump, a control unit controlling power supply to the driver, a board temperature sensor detecting a temperature of the circuit board; and an oil temperature sensor detecting a temperature of a working oil of a transmission as an oil temperature. The control unit executes energization prohibition control for prohibiting power supply to the driver when the temperature of the circuit board detected by the board temperature sensor exceeds a predetermined first threshold temperature, and executes cancellation determination for determining whether to cancel the energization prohibition control based on the oil temperature detected by the oil temperature sensor during execution of the energization prohibition control.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: March 7, 2023
    Assignee: Honda Motor Co., Ltd.
    Inventor: Masamichi Harada
  • Publication number: 20210108644
    Abstract: The disclosure provides a power supply controller which includes: a driver having a circuit board and controlling an operation of an electric oil pump; a control unit controlling power supply to the driver; a board temperature sensor detecting a temperature of the circuit board; and an oil temperature sensor detecting a temperature of a working oil of a transmission as an oil temperature. The control unit executes energization prohibition control for prohibiting power supply to the driver when the temperature of the circuit board detected by the board temperature sensor exceeds a predetermined first threshold temperature, and executes cancellation determination for determining whether to cancel the energization prohibition control based on the oil temperature detected by the oil temperature sensor during execution of the energization prohibition control.
    Type: Application
    Filed: September 30, 2020
    Publication date: April 15, 2021
    Applicant: Honda Motor Co.,Ltd.
    Inventor: Masamichi HARADA
  • Patent number: 10816092
    Abstract: A comparison determination unit of a hydraulic control device determines whether a characteristic abnormality occurs in at least one hydraulic sensor of an output pressure sensor and a lateral pressure sensor by comparing an output pressure detected by the output pressure sensor and a lateral pressure detected by the lateral pressure sensor. An individual determination unit determines whether the characteristic abnormality occurs in the hydraulic sensor as a determination target by individually determining whether the output pressure and the lateral pressure are out of a predetermined range. A characteristic abnormality detection unit determines the hydraulic sensor in which the characteristic abnormality occurs by using each determination result in the comparison determination unit and the individual determination unit.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: October 27, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masamichi Harada, Keiichi Nishiyama
  • Patent number: 10760681
    Abstract: In a control unit of a hydraulic control device, a vehicle state grasping unit grasps a vehicle state of a vehicle, and an output determination unit determines whether an operation point depending on the vehicle state that is decided by an operation point decision unit is over a discharging capability limit line. A pump controller stops a second pump or decreases a rotation number if the output determination unit determines that the operation point is over the discharging capability limit line.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: September 1, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masamichi Harada, Kyohei Sakagami
  • Patent number: 10760680
    Abstract: In a hydraulic control device, a state determination unit of a control unit determines whether a second pump is in a boosting operation or in a transition state. If the state determination unit has determined that the second pump is in the boosting operation or in the transition state, a valve-opening detection unit determines whether a check valve is opened. If the valve-opening detection unit has determined that the check valve is opened, a controller stops the second pump or decreases the rotation number of the second pump.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: September 1, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masamichi Harada, Makito Nakasone
  • Patent number: 10746286
    Abstract: In a hydraulic control device, a hydraulic sensor is provided on an intake side of a second pump where first oil is taken in and a line pressure sensor is provided on a discharging side of the second pump where the second oil is discharged. A control unit controls driving of the second pump by controlling a motor on the basis of an output pressure detected by the output pressure sensor or a line pressure detected by the line pressure sensor.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: August 18, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masamichi Harada, Kyohei Sakagami, Makito Nakasone, Shigeji Nakano
  • Patent number: 10738881
    Abstract: In a control unit of a hydraulic control device, a temperature acquisition unit acquires a temperature of a driver and a temperature determination unit determines whether the temperature or a temperature at an approximate line of the temperature has reached a restriction start temperature. If the temperature determination unit determines that the temperature or the temperature has reached the restriction start temperature, a motor controller restricts a motor output.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: August 11, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Masamichi Harada
  • Patent number: 10473126
    Abstract: In a control unit of a hydraulic control device, a workload calculation unit calculates the amount of workload cut in a first pump when supply of first oil from the first pump to a continuously variable transmission mechanism through a check valve is switched to supply of second oil from a second pump to the continuously variable transmission mechanism. A workload determination unit determines whether the amount of workload loss of an ACG is more than the amount of workload cut. A motor controller stops a motor or decreases a rotation number if the workload determination unit determines that the amount of workload loss is more than the amount of workload cut.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: November 12, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Masamichi Harada
  • Patent number: 10381528
    Abstract: The present invention provides a light emitting device that makes it possible to provide an image display apparatus having a wide color reproduction range. The light emitting device includes a light emitting element that emits blue light; a Mn2+-activated ?-AlON phosphor that is a green phosphor; and a Mn4+-activated phosphor that is a red phosphor. The green light emitted by the Mn2+-activated ?-AlON phosphor has an emission-spectrum peak wavelength of not less than 518 nm and not more than 528 nm.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: August 13, 2019
    Assignees: SHARP KABUSHIKI KAISHA, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Kenichi Yoshimura, Shigetoshi Ito, Makoto Izumi, Masamichi Harada, Hiroshi Fukunaga, Naoto Hirosaki
  • Publication number: 20190048898
    Abstract: In a control unit of a hydraulic control device, a workload calculation unit calculates the amount of workload cut in a first pump when supply of first oil from the first pump to a continuously variable transmission mechanism through a check valve is switched to supply of second oil from a second pump to the continuously variable transmission mechanism. A workload determination unit determines whether the amount of workload loss of an ACG is more than the amount of workload cut. A motor controller stops a motor or decreases a rotation number if the workload determination unit determines that the amount of workload loss is more than the amount of workload cut.
    Type: Application
    Filed: August 7, 2018
    Publication date: February 14, 2019
    Inventor: Masamichi Harada
  • Publication number: 20190048867
    Abstract: In a control unit of a hydraulic control device, when supply is switched to supply of first oil from a first pump to a continuously variable transmission mechanism through a check valve, a motor controller decreases a rotation number of a motor or stops the motor. The motor controller starts the motor only in a circumstance where an influence of an overshoot on a pressure (line pressure, pulley pressure) of oil that is supplied to the continuously variable transmission mechanism is small.
    Type: Application
    Filed: August 7, 2018
    Publication date: February 14, 2019
    Inventors: Masamichi Harada, Kyohei Sakagami
  • Publication number: 20190048998
    Abstract: In a hydraulic control device, a hydraulic sensor is provided on an intake side of a second pump where first oil is taken in and a line pressure sensor is provided on a discharging side of the second pump where the second oil is discharged. A control unit controls driving of the second pump by controlling a motor on the basis of an output pressure detected by the output pressure sensor or a line pressure detected by the line pressure sensor.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 14, 2019
    Inventors: Masamichi Harada, Kyohei Sakagami, Makito Nakasone, Shigeji Nakano
  • Publication number: 20190048997
    Abstract: In a control unit of a hydraulic control device, a temperature acquisition unit acquires a temperature of a driver and a temperature determination unit determines whether the temperature or a temperature at an approximate line of the temperature has reached a restriction start temperature. If the temperature determination unit determines that the temperature or the temperature has reached the restriction start temperature, a motor controller restricts a motor output.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 14, 2019
    Inventor: Masamichi Harada
  • Publication number: 20190048996
    Abstract: In a hydraulic control device, a state determination unit of a control unit determines whether a second pump is in a boosting operation or in a transition state. If the state determination unit has determined that the second pump is in the boosting operation or in the transition state, a valve-opening detection unit determines whether a check valve is opened. If the valve-opening detection unit has determined that the check valve is opened, a controller stops the second pump or decreases the rotation number of the second pump.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 14, 2019
    Inventors: Masamichi Harada, Makito Nakasone
  • Publication number: 20190049001
    Abstract: A comparison determination unit of a hydraulic control device determines whether a characteristic abnormality occurs in at least one hydraulic sensor of an output pressure sensor and a lateral pressure sensor by comparing an output pressure detected by the output pressure sensor and a lateral pressure detected by the lateral pressure sensor. An individual determination unit determines whether the characteristic abnormality occurs in the hydraulic sensor as a determination target by individually determining whether the output pressure and the lateral pressure are out of a predetermined range. A characteristic abnormality detection unit determines the hydraulic sensor in which the characteristic abnormality occurs by using each determination result in the comparison determination unit and the individual determination unit.
    Type: Application
    Filed: August 7, 2018
    Publication date: February 14, 2019
    Inventors: Masamichi Harada, Keiichi Nishiyama
  • Publication number: 20190048868
    Abstract: In a control unit of a hydraulic control device, a vehicle state grasping unit grasps a vehicle state of a vehicle, and an output determination unit determines whether an operation point depending on the vehicle state that is decided by an operation point decision unit is over a discharging capability limit line. A pump controller stops a second pump or decreases a rotation number if the output determination unit determines that the operation point is over the discharging capability limit line.
    Type: Application
    Filed: August 7, 2018
    Publication date: February 14, 2019
    Inventors: Masamichi Harada, Kyohei Sakagami
  • Patent number: 10060580
    Abstract: A light emitting device of the present disclosure includes a light emitting section that generates fluorescence by receiving laser light, a reflection film that reflects laser light which is radiated to the vicinity of the light emitting section, among laser light which is emitted toward the light emitting section from a rod lens, and a reflection mirror that collects the laser light reflected by the reflection film, in the light emitting section.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: August 28, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazunori Annen, Toshiki Matsuoka, Yuuichi Kanbayashi, Masamichi Harada
  • Patent number: 9741908
    Abstract: A wavelength converting member includes silica glass and a plurality of fluorescent material particles including an oxynitride or nitride fluorescent material and dispersed in the silica glass. The plurality of fluorescent material particles include at least two kinds of fluorescent material particles including (i) first fluorescent material particles that emit a fluorescence having a first peak wavelength and (ii) second fluorescent material particles that emit a fluorescence having a second peak wavelength. The wavelength converting member has a density within a range from 0.8 g/cm3 to 1.2 g/cm3.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: August 22, 2017
    Assignees: SHARP KABUSHIKI KAISHA, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Kenichi Yoshimura, Makoto Izumi, Masamichi Harada, Hiroshi Fukunaga, Kazunori Annen, Naoto Hirosaki, Hiroyo Segawa
  • Patent number: 9631140
    Abstract: In a light-emitting device, a 50%-area average diameter of primary particles of a Eu-activated ? SiAlON fluorescent material is 10 ?m or more, a scattering probability of scattering materials at a peak wavelength of excitation light emitted from an excitation light source is 0.1 mm?1 or more and 0.5 mm?1 or less, and the Eu-activated ? SiAlON fluorescent material is entrapped inside a transparent member in a dispersed state together with the scattering materials.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: April 25, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kenichi Yoshimura, Hiroshi Fukunaga, Masamichi Harada, Kohsei Takahashi
  • Publication number: 20170062668
    Abstract: The present invention provides a light emitting device that makes it possible to provide an image display apparatus having a wide color reproduction range. The light emitting device includes a light emitting element that emits blue light; a Mn2+-activated ?-AlON phosphor that is a green phosphor; and a Mn4+-activated phosphor that is a red phosphor. The green light emitted by the Mn2+-activated ?-AlON phosphor has an emission-spectrum peak wavelength of not less than 518 nm and not more than 528 nm.
    Type: Application
    Filed: August 15, 2016
    Publication date: March 2, 2017
    Inventors: Kenichi YOSHIMURA, Shigetoshi ITO, Makoto IZUMI, Masamichi HARADA, Hiroshi FUKUNAGA, Naoto HIROSAKI