Patents by Inventor Yoshifumi Ohtani

Yoshifumi Ohtani 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: 9708007
    Abstract: A vehicle body reinforcement apparatus extending along at least one of a front-rear direction and a width direction of a vehicle body, the vehicle body reinforcement apparatus includes at least two brackets via which the vehicle body reinforcement apparatus is fixed to the vehicle body, a housing connected to one of the two brackets, a rod including a first end portion that is movably housed within the housing and a second end portion connected the other of the two brackets, a spring member disposed between the first end portion of the rod and the housing and applying a biasing force to the rod against a force for increasing and decreasing a distance between the two brackets in an axial direction of the rod, and a friction mechanism mounted to the housing and pressing the rod in a direction orthogonal to the axial direction of the rod.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: July 18, 2017
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventor: Yoshifumi Ohtani
  • Publication number: 20160059808
    Abstract: A vehicle body reinforcement apparatus extending along at least one of a front-rear direction and a width direction of a vehicle body, the vehicle body reinforcement apparatus includes at least two brackets via which the vehicle body reinforcement apparatus is fixed to the vehicle body, a housing connected to one of the two brackets, a rod including a first end portion that is movably housed within the housing and a second end portion connected the other of the two brackets, a spring member disposed between the first end portion of the rod and the housing and applying a biasing force to the rod against a force for increasing and decreasing a distance between the two brackets in an axial direction of the rod, and a friction mechanism mounted to the housing and pressing the rod in a direction orthogonal to the axial direction of the rod.
    Type: Application
    Filed: September 1, 2015
    Publication date: March 3, 2016
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventor: Yoshifumi OHTANI
  • Patent number: 8960697
    Abstract: A vehicle suspension device includes a first fluid path through which a first upper port opening into a first hydraulic cylinder and a second lower port opening into a second hydraulic cylinder communicate with each other, a second fluid path through which a second upper port opening into the second hydraulic cylinder and a first lower port opening into the first hydraulic cylinder communicate with each other, a first hydraulic damping mechanism in the first fluid path, a second hydraulic damping mechanism in the second fluid path, a first accumulator connected to the first fluid path via a first branch fluid path having a first auxiliary hydraulic damping mechanism, a second accumulator connected to the second fluid path via a second branch fluid path having a second auxiliary hydraulic damping mechanism, and a bridge fluid path through which the first and second branch fluid paths are connected together.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: February 24, 2015
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Akira Kato, Takamasa Kato, Yoshifumi Ohtani, Katsuhiko Takasu, Masaaki Oishi
  • Publication number: 20140232082
    Abstract: A suspension system includes an upper cylinder chamber, a lower cylinder chamber, and a variable valve that adjusts the opening area of an opening of the lower cylinder chamber. The suspension system includes a first communication path through which the upper cylinder chamber of one of damping force control cylinders incorporated in a pair of wheels of a vehicle is in communication with the lower cylinder chamber of the other damping force control cylinder, a second communication path through which the lower cylinder chamber of the one damping force control cylinder is in communication with the upper cylinder chamber of the other damping force control cylinder, and a pair of oil receptacles that are provided in the first and second communication paths, respectively, and hold and discharge oil, depending on operations of the damping force control cylinders.
    Type: Application
    Filed: September 6, 2012
    Publication date: August 21, 2014
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Morito Oshita, Fumio Kojima, Kosuke Sakai, Yoshifumi Ohtani
  • Publication number: 20140217692
    Abstract: A vehicle suspension device includes a first fluid path through which a first upper port opening into a first hydraulic cylinder and a second lower port opening into a second hydraulic cylinder communicate with each other, a second fluid path through which a second upper port opening into the second hydraulic cylinder and a first lower port opening into the first hydraulic cylinder communicate with each other, a first hydraulic damping mechanism in the first fluid path, a second hydraulic damping mechanism in the second fluid path, a first accumulator connected to the first fluid path via a first branch fluid path having a first auxiliary hydraulic damping mechanism, a second accumulator connected to the second fluid path via a second branch fluid path having a second auxiliary hydraulic damping mechanism, and a bridge fluid path through which the first and second branch fluid paths are connected together.
    Type: Application
    Filed: October 25, 2012
    Publication date: August 7, 2014
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Akira Kato, Takamasa Kato, Yoshifumi Ohtani, Katsuhiko Takasu, Masaaki Oishi