The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 09, 1989
Filed:
Oct. 06, 1987
Hiroyuki Isashi, Shizuoka, JP;
Kawai Gakki Seisakusho Co., Ltd., Shizuoka, JP;
Abstract
A keyboard musical instrument is disclosed which comprises a plurality of keys connected to a sound generating mechanism arranged to play the notes of the musical scale, wherein (a) the instrument is housed in a casing having an upper surface on which a musical stave is depicted; (b) the keys are arranged to operate a display device which in conjunction with said stave provides a visual display indicative of a given note when the key corresponding to that note is played; and (c) the display device includes a plurality of rod carrying indicia which are movable independently from the keys and which generate the sound corresponding with the indicia scale by push-down motion therein also.