Patents by Inventor Tsutomu Ishimatsu

Tsutomu Ishimatsu 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).

  • Small watercraft with movable wing
    Patent number: 4736700
    Abstract: This disclosure relates to a small craft comprising a hull, a control handle supported on the hull adjacent its bow for pivotal movement in a substantially vertical plane that includes the center line of the hull. The handle extends rearwardly over the hull and is adapted to be manually operated. A wing is connected to the handle so as to have an angle of attack which changes as the handle is pivoted.
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: April 12, 1988
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Tsutomu Ishimatsu, Hiroshi Nishida, Masahiro Kawahara
  • Power take-off device of prime mover for propelling watercraft
    Patent number: 4723451
    Abstract: A power take-off device for employing the power of a prime mover originally provided for propelling a watercraft to drive equipment other than the watercraft. The stern-side end of an impeller shaft rotated by the prime mover for propulsion is extended outward beyond the impeller to be exposed in view. This extended portion provides a coupling engaging removably with an input coupling to a drive gear on aforesaid equipment.
    Type: Grant
    Filed: May 21, 1986
    Date of Patent: February 9, 1988
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventor: Tsutomu Ishimatsu
  • Carriage for watercraft
    Patent number: 4712636
    Abstract: A carriage adapted for an inboard-type motorboat provided with a power take-off device for a prime mover. The carriage comprises a dolly loading the watercraft, plural wheels inclusive of driving wheels rotatably supported by shafts on the dolly, an input shaft engaging with aforesaid power take-out device, and a power transmission fixed to the dolly to transmit torque of the input shaft to aforesaid driving wheels, and is driven by the torque transmitted from the power take-off device of the watercraft loaded on aforesaid dolly.
    Type: Grant
    Filed: May 29, 1986
    Date of Patent: December 15, 1987
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventor: Tsutomu Ishimatsu