Patents by Inventor Yoshiro Nakamatsu

Yoshiro Nakamatsu 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).

  • Apparatus for increasing the activity of the human brain
    Patent number: 4987896
    Abstract: This invention provides an apparatus for increasing the activity of the human brain which includes a section for cooling the head of a person and another section for warming his feet or legs.
    Type: Grant
    Filed: August 17, 1989
    Date of Patent: January 29, 1991
    Inventor: Yoshiro Nakamatsu
  • Device for manufacturing a magnetic recording medium
    Patent number: 4407226
    Abstract: A video disc includes a magnetic material applied thereon in such a manner that the orientation of said magnetic material is gradually intensified from the outermost track of the video disc to the innermost track thereof, starting from zero orientation at the outermost track.
    Type: Grant
    Filed: February 25, 1982
    Date of Patent: October 4, 1983
    Inventor: Yoshiro Nakamatsu
  • Medium for recording
    Patent number: 4395447
    Abstract: A video disc includes a magnetic material applied thereon in such a manner that the orientation of said magnetic material is gradually intensified from the outermost track of the video disc to the innermost track thereof, starting from zero orientation at the outermost track.
    Type: Grant
    Filed: April 22, 1981
    Date of Patent: July 26, 1983
    Inventor: Yoshiro Nakamatsu
  • Acoustic device with floating vibrating means
    Patent number: 4259550
    Abstract: An acoustic device comprising a main body having a magnet attached thereto, a vibrating means disposed to cooperate with said magnet of said main body for converting an electrical vibration into a mechanical vibration or vice versa, and a means for floating up said vibrating means into disengagement with said main body.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: March 31, 1981
    Inventor: Yoshiro Nakamatsu
  • Golfclub
    Patent number: 4215860
    Abstract: A golfclub includes a head and gripping means adapted to be grasped by the right and left hands of a golfer which are disposed side by side to each other in a direction transversely to a plane including the striking face of the head.
    Type: Grant
    Filed: November 9, 1976
    Date of Patent: August 5, 1980
    Inventor: Yoshiro Nakamatsu
  • Golfclub
    Patent number: 4123056
    Abstract: A golfclub includes a club head having two connected and opposed members which are spaced from one another whereby one of the members is adapted to strike a golfball such that the member vibrates to produce a sound by which a golfer can judge the area of the club head which strikes the golfball.
    Type: Grant
    Filed: November 30, 1976
    Date of Patent: October 31, 1978
    Inventor: Yoshiro Nakamatsu