Patents by Inventor Nobukado Matsutsuka

Nobukado Matsutsuka 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).

  • Electronic piano having variable keys
    Patent number: 6624348
    Abstract: An electronic piano having a keyboard which is divided into plural zones each comprising two or more keys as one unit. with a tone being allocated to each of the zones. One can play the electronic piano in a sense of play. Besides, since each of the zones can be struck in a lump, this electronic piano is suitable for a person having large hands and fingers or a person declined in dexterity such as an old person or a physically handicapped person. This electronic piano can be utilized as a musical instrument for rehabilitation.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: September 23, 2003
    Assignee: Kabushiki Kaisha Matsuya Sougou Kenkyusyo
    Inventor: Nobukado Matsutsuka