Patents by Inventor Hiroo Yanahara

Hiroo Yanahara 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: 20060166767
    Abstract: An objective is to provide a racket in which strings can be adjusted to have a desired tension in an easy manner. This racket includes: a loop-shaped frame body having an inner region in which strings are stretched in a net shape to provide a hitting area; a shaft section extending from one end of the frame body; a throat section for connecting the frame body with the shaft section; and a grip section gripped by a player that is provided at an end side of the shaft section, wherein the racket includes: a plurality of string holes provided in the frame body to allow the strings to be inserted therethrough; and a string tension adjustment member provided between the string holes provided to be adjacent to each other so as to provide a string folding section so that the string can be folded at a desired position.
    Type: Application
    Filed: July 15, 2002
    Publication date: July 27, 2006
    Inventor: Hiroo Yanahara
  • Patent number: D331436
    Type: Grant
    Filed: June 20, 1990
    Date of Patent: December 1, 1992
    Assignee: Phagason Co.
    Inventor: Hiroo Yanahara