Patents by Inventor Toshiyuki Ohki

Toshiyuki Ohki 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: 7354051
    Abstract: An independent suspension system for a wheeled vehicle includes a modified shock absorber, a leaf spring, and a wheel carrier. The shock absorber includes a cylinder, and a rod passing through the cylinder. The shock absorber is vertically mounted in a condition where the ends of the rod are coupled to the vehicle body. The cylinder of the shock absorber is coupled to the wheel carrier. The leaf spring supports the wheel carrier against rotation on a vertical axis of the vehicle. The leaf spring is elastically twisted to cancel a moment that causes a friction within the shock absorber.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: April 8, 2008
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Toshiyuki Ohki, Michihito Hirahara
  • Patent number: 7237780
    Abstract: An apparatus for adjusting vehicle height, the apparatus being disposed between a vehicle body and a wheel assembly, the apparatus including a first suspension coil spring adapted to be connected to the vehicle body, a second suspension coil spring adapted to be connected to the wheel assembly, the second suspension coil spring being different in diameter from the first suspension coil spring and arranged in serial relation to the first suspension coil spring in an axial direction thereof, and an actuator substantially disposed within an inside space defined by the first and second suspension coil springs. The actuator is operative to axially move one of the first and second suspension coil springs relative to the other thereof.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: July 3, 2007
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Toshiyuki Ohki
  • Publication number: 20050087941
    Abstract: An independent suspension system for a wheeled vehicle includes a modified shock absorber, a leaf spring, and a wheel carrier. The shock absorber includes a cylinder, and a rod passing through the cylinder. The shock absorber is vertically mounted in a condition where the ends of the rod are coupled to the vehicle body. The cylinder of the shock absorber is coupled to the wheel carrier. The leaf spring supports the wheel carrier against rotation on a vertical axis of the vehicle. The leaf spring is elastically twisted to cancel a moment that causes a friction within the shock absorber.
    Type: Application
    Filed: October 20, 2004
    Publication date: April 28, 2005
    Inventors: Toshiyuki Ohki, Michihito Hirahara
  • Publication number: 20040232648
    Abstract: An apparatus for adjusting vehicle height, the apparatus being disposed between a vehicle body and a wheel assembly, the apparatus including a first suspension coil spring adapted to be connected to the vehicle body, a second suspension coil spring adapted to be connected to the wheel assembly, the second suspension coil spring being different in diameter from the first suspension coil spring and arranged in serial relation to the first suspension coil spring in an axial direction thereof, and an actuator substantially disposed within an inside space defined by the first and second suspension coil springs. The actuator is operative to axially move one of the first and second suspension coil springs relative to the other thereof.
    Type: Application
    Filed: May 20, 2004
    Publication date: November 25, 2004
    Applicant: NISSAN MOTOR CO., LTD.
    Inventor: Toshiyuki Ohki
  • Patent number: 5026323
    Abstract: A structure for mounting a boot for a homokinetic joint. The boot is mounted between an outer ring of the joint and a shaft with both ends thereof engaging the outer peripheries of the outer ring and the shaft. Fastening bands are put on the engaging portions. Further, rubber rings are fitted on the outer peripheries of the outer ring and the shaft. The boot is formed in both end portions thereof with a predetermined number of slits axially extending from its ends inwardly. The rubber rings are provided with protrusions adapted to engage both ends of the boot, which is engaged in a groove formed in the outer ring and the shaft.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: June 25, 1991
    Assignee: NTN Corporation
    Inventors: Yoshikazu Fukumura, Toshiyuki Ohki
  • Patent number: RE34341
    Abstract: A structure for mounting a boot for a homokinetic joint. The boot is mounted between an outer ring of the joint and a shaft with both ends thereof engaging the outer peripheries of the outer ring and the shaft. Fastening bands are put on the engaging portions. Further, rubber rings are fitted on the outer peripheries of the outer ring and the shaft. The boot is formed in both end portions thereof with a predetermined number of slits axially extending from its ends inwardly. The rubber rings are provided with protrusions adapted to engage both ends of the boot, which is engaged in a groove formed in the outer ring and the shaft.
    Type: Grant
    Filed: April 17, 1992
    Date of Patent: August 10, 1993
    Assignee: NTN Corporation
    Inventors: Yoshikazu Fukumura, Toshiyuki Ohki