Patents by Inventor Kousuke Yasutake

Kousuke Yasutake 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).

  • Crankshaft of internal combustion engine and method of producing the same
    Patent number: 4881427
    Abstract: A crankshaft is provided which comprises a crankshaft body which is formed by forging. The crankshaft body includes a plurality of adjacent web core portions, crank pins interconnecting adjacent web core portions and journals which extend from the outermost of the adjacent web core portions. A plurality of balancer weights are formed by casting. Each of the balancer weights are integrally fored with, and surround, a corresponding one of the web core portions. Further, a method for manufacturing the crankshaft is disclosed.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: November 21, 1989
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Kousuke Yasutake
  • Crank shaft of V-type internal-combustion engine
    Patent number: 4517933
    Abstract: A V-type internal-combustion engine comprises first and second cylinders arranged so as to form a V shape on a vehicle body frame, a piston slidably and reciprocally engaged in each of the first and second cylinders, and a crank shaft connected to the pistons by connecting rods. The crank shaft comprises a central web, side webs arranged on both sides of the central web, and two crank pins carried by the central and each of the side webs and connected to the connecting rods. The crank pins are arranged so that the rotary phases thereof with respect to the central axis of the crank shaft are offset by an angle .alpha. from each other.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: May 21, 1985
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Kousuke Yasutake