Patents by Inventor Harumi Minami

Harumi Minami 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).

  • Patent number: 5154431
    Abstract: A ball, a racket and courts used in a new game or sport. The central idea behind this game is that a ball with a rotary shaft is whipped with a racket into a spinning motion. The ball comprises a spherical body having at least one shaft as a rotary shaft. The diameter of the spherical body is about 100-300 mm. The racket has a palm portion and a grip portion. The palm portion is made of a flexible material. The thickness of the palm portion is about 30-70 mm. A pair of ankle guards used to protect the ankles of players during play and specially designed courts for this game are also disclosed.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: October 13, 1992
    Assignee: Sphip Co., Ltd.
    Inventors: Naoharu Hayashi, Naomi Minami, Harumi Minami