Patents by Inventor Tatsutomo Yokozeki

Tatsutomo Yokozeki 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: 8998259
    Abstract: A steering apparatus includes an engaging portion movable in a predetermined moving direction at a time of a secondary collision; a fixation portion fixed to a vehicle body; and an absorbing member. The absorbing member includes a fixed portion fixed to the fixation portion, an engaged portion facing the engaging portion, and a connecting portion that includes a curved portion and connects the fixed portion and the engaged portion. An area of a cross-section of the curved portion taken along a plane perpendicular to a creeping direction along the curved portion varies depending on a position in the creeping direction. The connecting portion of the absorbing member is deformed so that the absorbing member absorbs energy of the secondary collision.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: April 7, 2015
    Assignee: JTEKT Corporation
    Inventors: Shigeru Morita, Tatsutomo Yokozeki, Isao Hasegawa
  • Publication number: 20150021890
    Abstract: A steering apparatus includes an engaging portion movable in a predetermined moving direction at a time of a secondary collision; a fixation portion fixed to a vehicle body; and an absorbing member. The absorbing member includes a fixed portion fixed to the fixation portion, an engaged portion facing the engaging portion, and a connecting portion that includes a curved portion and connects the fixed portion and the engaged portion. An area of a cross-section of the curved portion taken along a plane perpendicular to a creeping direction along the curved portion varies depending on a position in the creeping direction. The connecting portion of the absorbing member is deformed so that the absorbing member absorbs energy of the secondary collision.
    Type: Application
    Filed: July 11, 2014
    Publication date: January 22, 2015
    Inventors: Shigeru MORITA, Tatsutomo YOKOZEKI, Isao HASEGAWA
  • Patent number: 7513709
    Abstract: A universal joint includes a yoke having a fitting portion for fitting a shaft. The fitting portion has first and second tabs opposed to each other to form a U shape. A fixing mechanism including a bolt passing through respective insertion holes in the first and second tabs and a nut screwed onto the bolt on a fastening axis fastens and fixes the shaft between the first and second tabs. A nut holding member fixed to the second tab has an engaging piece. The engaging piece causes the nut, which has not been screwed onto the bolt, to be held on the fastening axis. A cover held by the nut holding member covers at least the engaging piece around the nut.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: April 7, 2009
    Assignee: Jtekt Corporation
    Inventors: Yutaka Shimada, Tatsutomo Yokozeki, Takeshi Matsuda
  • Publication number: 20070237571
    Abstract: A universal joint includes a yoke having a fitting portion for fitting a shaft. The fitting portion has first and second tabs opposed to each other to form a U shape. A fixing mechanism including a bolt passing through respective insertion holes in the first and second tabs and a nut screwed onto the bolt on a fastening axis fastens and fixes the shaft between the first and second tabs. A nut holding member fixed to the second tab has an engaging piece. The engaging piece causes the nut, which has not been screwed onto the bolt, to be held on the fastening axis. A cover held by the nut holding member covers at least the engaging piece around the nut.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 11, 2007
    Applicant: JTEKT Corporation
    Inventors: Yutaka Shimada, Tatsutomo Yokozeki, Takeshi Matsuda