Patents by Inventor Yukinobu Matsumura

Yukinobu Matsumura 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).

  • Golf swing analyzer
    Patent number: 5114150
    Abstract: A golf swing analyzer having two sensors which are adapted to sense the swing of a golf club, wherein analysis is made by detecting crossing points of the output signal waveforms at which the waveforms intersect a reference potential level plus and minus a predetermined value. The golf swing analyzer takes accurate measurement of the speed and/or direction of the swing without being affected by a noise.
    Type: Grant
    Filed: May 8, 1991
    Date of Patent: May 19, 1992
    Inventor: Yukinobu Matsumura