Patents by Inventor Masahito MITSUHASHI

Masahito MITSUHASHI 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: 11167767
    Abstract: An object is to reduce a current detection error of a current sensor while suppressing upsizing of a power conversion device equipped with the current sensor. A power conversion device includes a power conversion circuit; a conductor to transmit current to the circuit; and a coreless current sensor to detect the current. The coreless current sensor includes: a magnetic field detection portion; and a shield portion facing the magnetic field detection portion. The conductor includes: a first conductor portion that passes through a space between the magnetic field detection portion and shield portion; and a second conductor portion connected to the first conductor portion via a first bent portion, and the first bent portion is formed such that the space between the magnetic field detection portion and shield portion is not disposed in a direction perpendicular to a face of the second conductor portion closest to the shield portion.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: November 9, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takaya Ishii, Masahito Mitsuhashi
  • Patent number: 11124200
    Abstract: A vehicle control device that is capable of performing abnormality determination of a sensor by majority decision without increasing the number of sensors. A vehicle control device includes a camera and a radar configured to detect a predetermined detection target; and a communication device configured to communicate with outside. The vehicle control device determines whether there is an abnormality in the camera and the radar on the basis of: first acquisition means configured to acquire information on the predetermined detection target from each of the camera and the radar; second acquisition means configured to acquire information, on the predetermined detection target, detected by a road-to-vehicle communication device external to an own vehicle and received by the communication device; information from the camera and the radar acquired by the first acquisition means; and information from the road-to-vehicle communication device external to the own vehicle acquired by the second acquisition means.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: September 21, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Yoshitaka Fukasawa, Masahito Mitsuhashi, Takayuki Kawashima
  • Publication number: 20200114911
    Abstract: When an own vehicle in an autonomous-driving mode obstructs travel of another vehicle or is traveling not with the flow of traffic, the own vehicle is brought into a travel state in which the driver does not feel discomfort. When a determiner 85 determines that the own vehicle obstructs the travel of another vehicle or is traveling not with the flow of traffic, a notification controller 86 outputs, to an HMI device 22, a signal for causing the HMI device 22 to make a notification.
    Type: Application
    Filed: January 31, 2018
    Publication date: April 16, 2020
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Masahito MITSUHASHI
  • Publication number: 20190344801
    Abstract: An object is to reduce a current detection error of a current sensor while suppressing upsizing of a power conversion device equipped with the current sensor. A power conversion device includes a power conversion circuit; a conductor to transmit current to the circuit; and a coreless current sensor to detect the current. The coreless current sensor includes: a magnetic field detection portion; and a shield portion facing the magnetic field detection portion. The conductor includes: a first conductor portion that passes through a space between the magnetic field detection portion and shield portion; and a second conductor portion connected to the first conductor portion via a first bent portion, and the first bent portion is formed such that the space between the magnetic field detection portion and shield portion is not disposed in a direction perpendicular to a face of the second conductor portion closest to the shield portion.
    Type: Application
    Filed: February 21, 2018
    Publication date: November 14, 2019
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takaya ISHII, Masahito MITSUHASHI
  • Publication number: 20190241194
    Abstract: A vehicle control device that is capable of performing abnormality determination of a sensor by majority decision without increasing the number of sensors. A vehicle control device includes a camera and a radar configured to detect a predetermined detection target; and a communication device configured to communicate with outside. The vehicle control device determines whether there is an abnormality in the camera and the radar on the basis of: first acquisition means configured to acquire information on the predetermined detection target from each of the camera and the radar; second acquisition means configured to acquire information, on the predetermined detection target, detected by a road-to-vehicle communication device external to an own vehicle and received by the communication device; information from the camera and the radar acquired by the first acquisition means; and information from the road-to-vehicle communication device external to the own vehicle acquired by the second acquisition means.
    Type: Application
    Filed: February 5, 2018
    Publication date: August 8, 2019
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Yoshitaka FUKASAWA, Masahito MITSUHASHI, Takayuki KAWASHIMA