Patents by Inventor Hiroshi OSHIUMI

Hiroshi OSHIUMI 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).

  • Ignition device
    Patent number: 11557883
    Abstract: An ignition device includes a coil unit and an igniter. The coil unit includes a primary coil and a secondary coil. The primary coil includes a main primary coil and an auxiliary primary coil formed by winding a single primary conductor on a primary bobbin. The secondary coil is formed by winding a secondary conductor on a secondary bobbin. A DC voltage is applied to an intermediate section of the primary conductor between the main primary coil and the auxiliary primary coil. The igniter controls current flowing into the main primary coil or the auxiliary primary coil. The primary bobbin includes a bobbin body and a hooking part protruding from the bobbin body. The main primary coil and the auxiliary primary coil are wound on an outer peripheral surface of the bobbin body to the same direction. A part of the intermediate section is hooked on the hooking part.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: January 17, 2023
    Assignee: DIAMOND & ZEBRA ELECTRIC MFG. CO., LTD.
    Inventors: Atsushi Shono, Hiroshi Oshiumi, Takushi Nishimura
  • Ignition coil for internal combustion engine and production method for the same
    Patent number: 11495403
    Abstract: An ignition coil includes a not-illustrated coil, a plate assembly, and a case assembly. The plate assembly and the case assembly are combined with each other by laser welding at a recess and a rib (projection) which are respective abutting portions, thereby forming storage spaces for storing the coil.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: November 8, 2022
    Assignee: DIAMOND&ZEBRA ELECTRIC MFG. CO., LTD.
    Inventors: Junichi Tanda, Michinori Matsuda, Hiroshi Oshiumi
  • IGNITION DEVICE
    Publication number: 20210203136
    Abstract: An ignition device includes a coil unit and an igniter. The coil unit includes a primary coil and a secondary coil. The primary coil includes a main primary coil and an auxiliary primary coil formed by winding a single primary conductor on a primary bobbin. The secondary coil is formed by winding a secondary conductor on a secondary bobbin. A DC voltage is applied to an intermediate section of the primary conductor between the main primary coil and the auxiliary primary coil. The igniter controls current flowing into the main primary coil or the auxiliary primary coil. The primary bobbin includes a bobbin body and a hooking part protruding from the bobbin body. The main primary coil and the auxiliary primary coil are wound on an outer peripheral surface of the bobbin body to the same direction. A part of the intermediate section is hooked on the hooking part.
    Type: Application
    Filed: August 31, 2020
    Publication date: July 1, 2021
    Inventors: Atsushi SHONO, Hiroshi OSHIUMI, Takushi NISHIMURA
  • IGNITION COIL FOR INTERNAL COMBUSTION ENGINE AND PRODUCTION METHOD FOR THE SAME
    Publication number: 20210057150
    Abstract: An ignition coil includes a not-illustrated coil, a plate assembly, and a case assembly. The plate assembly and the case assembly are combined with each other by laser welding at a recess and a rib (projection) which are respective abutting portions, thereby forming storage spaces for storing the coil.
    Type: Application
    Filed: April 11, 2019
    Publication date: February 25, 2021
    Applicant: DIAMOND ELECTRIC MFG. CO., LTD.
    Inventors: Junichi TANDA, Michinori MATSUDA, Hiroshi OSHIUMI