Patents by Inventor Yoshihito Fukuoka

Yoshihito Fukuoka 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).

  • Publication number: 20060160439
    Abstract: A cowling structure for an outboard motor having a top cowl and a bottom cowl for covering an engine, and sealing a mating face between the top cowl and the bottom cowl, including an annular sealing rail forming a sealing face and is attached to the bottom cowl. The annular sealing rail has a tight fitting part and an attaching part on the outer and inner sides of the sealing face, respectively.
    Type: Application
    Filed: December 28, 2005
    Publication date: July 20, 2006
    Inventors: Yoshihito Fukuoka, Daisuke Nakamura
  • Publication number: 20060141878
    Abstract: An outboard motor includes an engine. A cowling body defines an internal cavity in which the engine is enclosed. A partition member divides the internal cavity into a first cavity and a second cavity. The first cavity communicates with outside through a first opening for introducing ambient air into the first cavity. The second cavity encloses the engine therein. The partition member has a second opening through which the air in the first cavity moves to the second cavity. The cowling body and the partition member are made of a nonferrous metal. The partition member is adhered to the cowling body.
    Type: Application
    Filed: December 28, 2005
    Publication date: June 29, 2006
    Inventors: Daisuke Nakamura, Yoshihito Fukuoka, Isao Fujii, Hirotoshi Yamauchi
  • Patent number: 6500036
    Abstract: A power head for an outboard motor includes an improved construction that can includes a compactly arranged tilt relay unit of a hydraulic tilt and trim system. The outboard motor includes a drive unit comprising an internal combustion engine. A bracket assembly is adapted to be mounted on an associated watercraft. The bracket supports the drive unit for pivotal movement about a generally horizontally extending tilt axis. A hydraulic tilt system is arranged to tilt up and down the drive unit. The tilt system includes a hydraulic pump and an electric motor actuating the hydraulic pump. A tilt relay unit supplies electric power to the electric motor based upon a control signal. The relay unit is disposed generally between the engine and the bracket assembly.
    Type: Grant
    Filed: July 11, 2000
    Date of Patent: December 31, 2002
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventors: Yoshihito Fukuoka, Kazuyuki Kitajima
  • Patent number: 6394057
    Abstract: An arrangement of components for an engine includes an improved construction. An exhaust system of the engine has an exhaust manifold extending along an cylinder body. At least a part of an air induction system of the engine exists to overlap with the exhaust manifold in a view along an extending axis of the exhaust manifold. A cooling system having at least two coolant passages is further provided. A coolant flow control mechanism is arranged to prevent only the coolant within one of the passages from flowing therethrough when temperature of the coolant is lower than a predetermined temperature.
    Type: Grant
    Filed: January 26, 2000
    Date of Patent: May 28, 2002
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventors: Yoshihito Fukuoka, Hiroshi Oishi
  • Patent number: 6276327
    Abstract: An improved arrangement of an outboard motor reduces the size of the outboard motor and improves a lubrication system of the outboard motor. Intake and exhaust passages are located along a side of a cylinder body. A crank case lubricant return passage is located on the same side of the cylinder body as the intake and exhaust passages. The return passages have openings located on an inner surface of the crank case. A breather passage connecting a cam chamber and an lubricant reservoir are located on a side of the cylinder body opposite the intake and exhaust passage. The lubricant reservoir including a drain and an insertion port. The insertion port being pointed towards the drain.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: August 21, 2001
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventors: Yoshihito Fukuoka, Hiroshi Oishi, Atsushi Kumita
  • Patent number: 5501188
    Abstract: An outboard motor having a starter motor and other electrical components which are mounted adjacent the crankcase of the engine but in spaced relationship thereto by a mounting plate for providing heat insulation.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: March 26, 1996
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventor: Yoshihito Fukuoka
  • Patent number: 5460555
    Abstract: Two embodiments of outboard motors having four-cycle internal combustion engines with the crankshaft of the engine rotating about a vertically extending axis in a crankcase chamber formed at the front of the engine. A main oil gallery extends along the crankcase member and receives oil from an oil filter mounted on the crankcase member at the front of the engine.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: October 24, 1995
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Yoshihito Fukuoka, Toshimasa Morita
  • Patent number: 5450831
    Abstract: A fuel delivery system for an engine having multiple, vertically spaced charge formers, and the system is provided with a fuel conduit arrangement so that the individual conduits serving the individual charge formers are kept relatively short in length, but the conduits are interconnected in such a way that any vapor which may form in the conduits will flow vertically upwardly for purging from the system.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: September 19, 1995
    Assignee: Sanshin Koygo Kabushiki Kaisha
    Inventor: Yoshihito Fukuoka