Patents by Inventor Daisuko Nakamura

Daisuko Nakamura 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).

  • Hydraulic assist device for marine propulsion unit
    Patent number: 5489226
    Abstract: A hydraulic device for interposition between an outboard propulsion device and a watercraft transom for controlling the trim position of the propulsion device, for permitting the propulsion device to pop up when an underwater obstacle is struck and to return to the trim adjusted position and also including a bypass valve for permitting manual tilt up of the propulsion device without fluid restriction.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: February 6, 1996
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventors: Daisuko Nakamura, Yoshiyuki Katsumata