Patents by Inventor Shigeki ICHIKAWA

Shigeki ICHIKAWA 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).

  • Mower cord and manufacturing method for mower cord
    Patent number: 11510363
    Abstract: A manufacturing method for a mower cord and including pressing a resin wire rod and plastically deforming at least part of the wire rod in an axis perpendicular direction. Work-hardening of a surface of the plastically deformed portion allows dramatic enhancement of mowing efficiency.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: November 29, 2022
    Assignee: Sanyo Tegusu Co., Ltd.
    Inventors: Toshio Ishikawa, Shigeki Ichikawa, Masaya Suzuki
  • MOWER CORD AND MANUFACTURING METHOD FOR MOWER CORD
    Publication number: 20210092898
    Abstract: A manufacturing method for a mower cord and including pressing a resin wire rod and plastically deforming at least part of the wire rod in an axis perpendicular direction. Work-hardening of a surface of the plastically deformed portion allows dramatic enhancement of mowing efficiency.
    Type: Application
    Filed: December 1, 2020
    Publication date: April 1, 2021
    Inventors: Toshio ISHIKAWA, Shigeki ICHIKAWA, Masaya SUZUKI
  • Mower cord and manufacturing method for mower cord
    Patent number: 10945365
    Abstract: The present invention relates to a manufacturing method for a mower cord and includes pressing a resin wire rod and plastically deforming at least part of the wire rod in an axis perpendicular direction. Work-hardening of a surface of the plastically deformed portion allows dramatic enhancement of mowing efficiency.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: March 16, 2021
    Assignee: Sanyo Tegusu Co., Ltd.
    Inventors: Toshio Ishikawa, Shigeki Ichikawa, Masaya Suzuki
  • MOWER CORD AND MANUFACTURING METHOD FOR MOWER CORD
    Publication number: 20180064026
    Abstract: The present invention relates to a manufacturing method for a mower cord and includes pressing a resin wire rod and plastically deforming at least part of the wire rod in an axis perpendicular direction. Work-hardening of a surface of the plastically deformed portion allows dramatic enhancement of mowing efficiency.
    Type: Application
    Filed: March 2, 2015
    Publication date: March 8, 2018
    Inventors: Toshio ISHIKAWA, Shigeki ICHIKAWA, Masaya SUZUKI