Patents by Inventor Kinichi Otsuka

Kinichi Otsuka 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: 7162816
    Abstract: A work vehicle with a tilt floor, which is capable of improving the maintainability around an engine and the operability and comfortability of a driver's seat and its periphery, is provided. The work vehicle with a tilt floor includes a hinge mechanism which is provided on the front end of the tilt floor to enable to turn the tilt floor toward the front of the vehicle body, the rear of the tilt floor is formed to be higher than the front of the tilt floor so to cover the headroom of an engine disposed on the rear of the vehicle body, and an operator seat is disposed on the top surface at the rear of the tilt floor.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: January 16, 2007
    Assignees: Komatsu Ltd., Komatsu Zenoah Co.
    Inventors: Kinichi Otsuka, Toshifumi Ogihara, Katsumi Yokoo, Sachio Shimizu
  • Publication number: 20040240976
    Abstract: A working vehicle which comprises a work machine in the front section of the vehicle body and is provided with a counterweight in the rear section of the vehicle body, in which the counterweight is formed in a condition that the upper surface of the counterweight is positioned higher than the seating surface of an operator seat provided in the vehicle body, and in which a moment of the rear section of the vehicle can be increased without forming the counterweight to bulge backward, thus the work range for the work machine can be expanded without damaging the work performance of other functions.
    Type: Application
    Filed: May 28, 2004
    Publication date: December 2, 2004
    Inventors: Kinichi Otsuka, Sachio Shimizu
  • Publication number: 20040172863
    Abstract: A work vehicle with a tilt floor, which is capable of improving the maintainability around an engine and the operability and comfortability of a driver's seat and its periphery, is provided. The work vehicle with a tilt floor includes a hinge mechanism which is provided on the front end of the tilt floor to enable to turn the tilt floor toward the front of the vehicle body, the rear of the tilt floor is formed to be higher than the front of the tilt floor so to cover the headroom of an engine disposed on the rear of the vehicle body, and an operator seat is disposed on the top surface at the rear of the tilt floor.
    Type: Application
    Filed: October 16, 2003
    Publication date: September 9, 2004
    Inventors: Kinichi Otsuka, Toshifumi Ogihara, Katsumi Yokoo, Sachio Shimizu