Patents by Inventor Kenichi YUKUMATSU

Kenichi YUKUMATSU 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: 10875564
    Abstract: A steering wheel structure includes: a guide member (30) that is formed into a tubular shape, and attached to a mounting hole (12a) formed in a mounting plate (12) of an airbag module (10); a hook member (2) that is formed in a steering wheel (1), and is inserted into the guide member (30); a damper rubber (20) that is interposed between an edge portion of the mounting hole (12a) in the mounting plate (12), and the guide member (30); and a lock spring (40) that is attached to the guide member (30). The lock spring (40) is engaged with the hook member (2) inserted into the guide member (30) so as to prevent the hook member (2) from coming-off from the guide member (30).
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: December 29, 2020
    Assignees: ASHIMORI INDUSTRY CO., LTD., MAZDA MOTOR CORPORATION
    Inventors: Yuta Minami, Hidenori Higo, Kenichi Yukumatsu, Hideharu Kaeriyama
  • Publication number: 20200331511
    Abstract: A steering wheel structure includes: a guide member (30) that is formed into a tubular shape, and attached to a mounting hole (12a) formed in a mounting plate (12) of an airbag module (10); a hook member (2) that is formed in a steering wheel (1), and is inserted into the guide member (30); a damper rubber (20) that is interposed between an edge portion of the mounting hole (12a) in the mounting plate (12), and the guide member (30); and a lock spring (40) that is attached to the guide member (30). The lock spring (40) is engaged with the hook member (2) inserted into the guide member (30) so as to prevent the hook member (2) from coming-off from the guide member (30).
    Type: Application
    Filed: February 8, 2018
    Publication date: October 22, 2020
    Applicants: ASHIMORI INDUSTRY CO., LTD., MAZDA MOTOR CORPORATION
    Inventors: Yuta MINAMI, Hidenori HIGO, Kenichi YUKUMATSU, Hideharu KAERIYAMA
  • Patent number: 8567857
    Abstract: A connection member which connects an outside portion of a cross member and an inside wall face portion of a side sill includes a cross-member-side connection portion connected to the cross member and a side-sill-side connection portion connected to the side sill, the side-sill-side connection portion is configured to have a lower rigidity than the cross-member-side connection portion, and an outside end portion of the cross member is located at a specified position which is located on the outside of the cross-member-side connection portion and on the inside away from the inside wall face portion of the side sill. Thereby, the impact load in the vehicle side collision can be effectively supported by the cross member with a simple structure.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: October 29, 2013
    Assignee: Mazda Motor Corporation
    Inventors: Yoshio Fujii, Kohei Kirita, Yosuke Onda, Hideharu Kaeriyama, Masafumi Sakakida, Kenichi Yukumatsu
  • Publication number: 20120049501
    Abstract: A connection member which connects an outside portion of a cross member and an inside wall face portion of a side sill includes a cross-member-side connection portion connected to the cross member and a side-sill-side connection portion connected to the side sill, the side-sill-side connection portion is configured to have a lower rigidity than the cross-member-side connection portion, and an outside end portion of the cross member is located at a specified position which is located on the outside of the cross-member-side connection portion and on the inside away from the inside wall face portion of the side sill. Thereby, the impact load in the vehicle side collision can be effectively supported by the cross member with a simple structure.
    Type: Application
    Filed: August 16, 2011
    Publication date: March 1, 2012
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yoshio FUJII, Kohei KIRITA, Yosuke ONDA, Hideharu KAERIYAMA, Masafumi SAKAKIDA, Kenichi YUKUMATSU