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:
Feb. 14, 2006
Filed:
Dec. 23, 2003
Applicant:
Shinji Niitsuma, Hamamatsu, JP;
Inventor:
Shinji Niitsuma, Hamamatsu, JP;
Assignee:
Kabushiki Kaisha Kawai Gakki Seisakusho, Hamamatsu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10C 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A keyboard instrument is provided which inhibits generation of unintended, audible noise. A partition (body part) is arranged between adjacent hammers corresponding to keys. In the keyboard instrument provided with the partition, even if the keyboard instrument is rotated vertically and a hammer falls, the partition prevents the hammer from freely falling and striking adjacent hammers. Also, the hammer is restricted from generating unintended sounds for reasons unrelated to falling. Accordingly, generation of an unintended audible sound of the hammers can be reliably restrained in the present keyboard instrument.