Patents by Inventor Koji Jahara

Koji Jahara 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: 11794819
    Abstract: In an engine compartment, an engine, a generator using the engine as a power source, a motor for driving the vehicle, and a gear box are arranged in alignment in a vehicle width direction. The first high-voltage equipment is vertically provided on a generating unit that includes the engine and the generator. The second high-voltage equipment is vertically provided on a drive unit that includes the motor and the gear box. The first high-voltage equipment and the second high-voltage equipment are coupled by a coupling member that extends substantially horizontally in the vehicle width direction and supports the high-voltage equipment, against a falling load directed from one thereof toward the other.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: October 24, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takashi Hamada, Kazuki Hirota, Satoshi Nakamura, Toshimitsu Yugami, Yoshiaki Noguchi, Koji Jahara
  • Publication number: 20210053624
    Abstract: In an engine compartment, an engine, a generator using the engine as a power source, a motor for driving the vehicle, and a gear box are arranged in alignment in a vehicle width direction. The first high-voltage equipment is vertically provided on a generating unit that includes the engine and the generator. The second high-voltage equipment is vertically provided on a drive unit that includes the motor and the gear box. The first high-voltage equipment and the second high-voltage equipment are coupled by a coupling member that extends substantially horizontally in the vehicle width direction and supports the high-voltage equipment, against a falling load directed from one thereof toward the other.
    Type: Application
    Filed: August 13, 2020
    Publication date: February 25, 2021
    Applicant: Mazda Motor Corporation
    Inventors: Takashi HAMADA, Kazuki HIROTA, Satoshi NAKAMURA, Toshimitsu YUGAMI, Yoshiaki NOGUCHI, Koji JAHARA
  • Patent number: 10358024
    Abstract: An electric-drive vehicle structure is provided, which includes a cross member bridged between side frames in a front part of a vehicle, a motor suspended below the cross member, a tray fixed to an upper surface of the cross member, and an electric unit for driving a motor, fixed onto the tray. A front edge of the electric unit is located forward of a front edge of the cross member, and the tray has a front edge located, throughout a width thereof, forward of the electric unit.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: July 23, 2019
    Assignee: Mazda Motor Corporation
    Inventors: Toshimitsu Yugami, Ikuo Nonaka, Yoshiaki Noguchi, Koji Jahara, Takashi Hamada, Tadasuke Abe, Kazuki Hirota
  • Publication number: 20190084397
    Abstract: An electric-drive vehicle structure is provided, which includes a cross member bridged between side frames in a front part of a vehicle, a motor suspended below the cross member, a tray fixed to an upper surface of the cross member, and an electric unit for driving a motor, fixed onto the tray. A front edge of the electric unit is located forward of a front edge of the cross member, and the tray has a front edge located, throughout a width thereof, forward of the electric unit.
    Type: Application
    Filed: September 12, 2018
    Publication date: March 21, 2019
    Inventors: Toshimitsu Yugami, Ikuo Nonaka, Yoshiaki Noguchi, Koji Jahara, Takashi Hamada, Tadasuke Abe, Kazuki Hirota
  • Patent number: 6653582
    Abstract: A stop lamp switch of the present invention includes; an operating shaft having one end face being outwardly projected from a switch case body, the end face abutting on a brake pedal of a vehicle; an actuator moving within the switch case body to separate a movable contact from a fixed contact; an engaging spring attached to the other end of the actuator so as to be engaged with a concave-convex locking portion provided on the operating shaft, and a spring regulating member for engaging both free ends of the engaging spring with engaging step portions provided to the spring regulating member in a freely engageable/disengageable manner while the engaging spring is being in a spread state.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: November 25, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Noriyuki Kasakawa, Masahiro Hirobe, Koji Jahara, Kenji Nakatani, Takayoshi Nishijima, Hiroshi Miyazaki
  • Publication number: 20030111328
    Abstract: A stop lamp switch of the present invention includes; an operating shaft having one end face being outwardly projected from a switch case body, the end face abutting on a brake pedal of a vehicle; an actuator moving within the switch case body to separate a movable contact from a fixed contact; an engaging spring attached to the other end of the actuator so as to be engaged with a concave-convex locking portion provided on the operating shaft, and a spring regulating member for engaging both free ends of the engaging spring with engaging step portions provided to the spring regulating member in a freely engageable/disengageable manner while the engaging spring is being in a spread state.
    Type: Application
    Filed: November 14, 2002
    Publication date: June 19, 2003
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Noriyuki Kasakawa, Masahiro Hirobe, Koji Jahara, Kenji Nakatani, Takayoshi Nishijima, Hiroshi Miyazaki