Patents by Inventor Junji Ichii

Junji Ichii 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).

  • High performance yo-yo
    Patent number: 6234861
    Abstract: A yo-yo includes a pair of rotary elements spaced from each other and each having a cavity, a bearing portion formed on each of the pair of rotary elements at a center thereof, and an axle detachably received in the bearing portion so as to be rotatable together with the pair of rotary elements. The axle has an engaging portion formed at each of opposite ends thereof. The axle is loosely inserted into a generally cylindrical spool interposed between the pair of rotary elements. A locking device having a pair of locking parts is mounted in the cavity, and the pair of locking parts have respective holding portions for detachably holding the engaging portion therebetween.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: May 22, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Junji Ichii, Nobuhiro Arai
  • High performance yo-yo
    Publication number: 20010001087
    Abstract: A yo-yo includes a pair of rotary elements spaced from each other and each having a cavity, a bearing portion formed on each of the pair of rotary elements at a center thereof, and an axle detachably received in the bearing portion so as to be rotatable together with the pair of rotary elements. The axle has an engaging portion formed at each of opposite ends thereof. The axle is loosely inserted into a generally cylindrical spool interposed between the pair of rotary elements. A locking device having a pair of locking parts is mounted in the cavity, and the pair of locking parts have respective holding portions for detachably holding the engaging portion therebetween.
    Type: Application
    Filed: January 5, 2001
    Publication date: May 10, 2001
    Inventors: Junji Ichii, Nobuhiro Arai