Patents by Inventor Yusuke TENKUMO

Yusuke TENKUMO 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).

  • Method for producing a spark plug including an electrode having a base portion and a tip fixed to the base portion
    Patent number: 10680416
    Abstract: A tip is welded appropriately using an energy beam. The tip is welded to a base portion by irradiating the interface between the base portion and the tip with the energy beam. The welding the tip to the base portion includes: applying the energy beam continuously, while moving the irradiation position of the energy beam, in a first period of time; and applying the energy beam a plurality of times according to a pulsed output pattern, while moving the irradiation position of the energy beam, in a second period of time subsequent to the first period of time.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: June 9, 2020
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Yusuke Tenkumo, Susumu Imai
  • SPARK PLUG PRODUCTION METHOD
    Publication number: 20190393683
    Abstract: A tip is welded appropriately using an energy beam. The tip is welded to a base portion by irradiating the interface between the base portion and the tip with the energy beam. The welding the tip to the base portion includes: applying the energy beam continuously, while moving the irradiation position of the energy beam, in a first period of time; and applying the energy beam a plurality of times according to a pulsed output pattern, while moving the irradiation position of the energy beam, in a second period of time subsequent to the first period of time.
    Type: Application
    Filed: December 11, 2017
    Publication date: December 26, 2019
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Yusuke TENKUMO, Susumu IMAI