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:
Dec. 09, 2003
Filed:
Mar. 14, 2002
Applicant:
Inventors:
Motoomi Goto, Shizuoka, JP;
Kiyoshi Kawamura, Shizuoka, JP;
Assignee:
Yamaha Corporation, Hamamatsu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10C 3/02 ;
U.S. Cl.
CPC ...
G10C 3/02 ;
Abstract
A grand piano has a keyboard placed on a key bed, and the keyboard is covered with a fall board after completion of practice on the keyboard, wherein a recess is formed in the fall board in such a manner as to offer a clearance to fingers on the black keys so that, even if the pianist straightens his or her fingers on the land portion before moving them to other keys, the nails are never hit against the inner surface of the fall board.