Patents by Inventor Fusao Satoh

Fusao Satoh 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).

  • Saxophone with octave hole for producing an octave higher tone
    Patent number: 5208411
    Abstract: A saxophone comprises a tube member having one end portion gradually decreased in diameter toward a mouth piece, and a plurality of tone holes and an octave hole are formed in the tube member and the mouth piece, respectively, in association with a key mechanism and an octave key, wherein an enlarged portion is formed in one end portion of the tube member and larger in the inner diameter than adjacent portions thereof so that the depressed octave key allows the tube member to exactly produce a tone exactly twice as large in pitch as the previous tone.
    Type: Grant
    Filed: April 17, 1991
    Date of Patent: May 4, 1993
    Assignee: Yamaha Corporation
    Inventor: Fusao Satoh
  • Key mechanism for wind instruments
    Patent number: 4516463
    Abstract: In the construction of a key mechanism for wind instruments such as woodwind pad cups for two different tone holes are mounted to separate hinge rods by different keys which are separately spring biased for easy construction and adjustment of the mechanism with reliable protection of air leak at closing of the tone holes by the pad cups.
    Type: Grant
    Filed: October 6, 1983
    Date of Patent: May 14, 1985
    Assignee: Nippon Gakki Seizo Kabushiki Kaisha
    Inventor: Fusao Satoh