Patents Assigned to Nep Company, Ltd.
  • Step-on type tone scale play device
    Patent number: 4121488
    Abstract: A step-on type tone scale play device has a flexible mat within which is arranged a plurality of flexible switch elements in accordance with a tone scale and is adapted to produce corresponding music sounds when marks configured on the surface of a mat to indicate the position of each switch element are stepped on.The device is very easy to keep and carry, and convenient to display or perform as compared to the conventional device, as the mat is light and capable of folding or rolling into a compact form.
    Type: Grant
    Filed: February 24, 1977
    Date of Patent: October 24, 1978
    Assignee: Nep Company, Ltd.
    Inventor: Kakunosuke Akiyama