Patents by Inventor Hajime Yamauchi

Hajime Yamauchi 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).

  • Oil separating apparatus for oil containing substance and method therefor
    Patent number: 6547960
    Abstract: An oil component separating apparatus for an oil containing substance can solve a problem of inflammability and can separate oil component and solid substance simply at low cost. The oil component separating apparatus for a oil containing substance includes a processing vessel having an injection space, into which a supersonic flow of an overheated vapor is injected toward an oil containing substance supplied externally, separating means for separating a evaporated component and solid component obtained by injection in the injection space, and condensing means for collecting the oil component by condensing the evaporated substance.
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: April 15, 2003
    Inventor: Hajime Yamauchi
  • Spacer and expander member for holding and biasing piston ring rails
    Patent number: 4429885
    Abstract: A piston ring assembly including a pair of rails engageable with a cylinder wall and a spacer and expander member for holding and expanding the rails. The spacer and expander member has a corrugated base and arms extending alternately upwardly and downwardly from lower and upper crowns of the corrugated base, which arms are inclined radially outwardly to provide an improved resilient spring-like action to the rails supported on the crowns.
    Type: Grant
    Filed: November 4, 1982
    Date of Patent: February 7, 1984
    Assignee: Kabushiki Kaisha Riken
    Inventors: Ko Chiba, Hajime Yamauchi, Yoneo Kawauchi, Yukio Ikeda