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:
Sep. 17, 1996
Filed:
Mar. 30, 1995
Applicant:
Inventors:
Hajime Hayashida, Shizuoka, JP;
Satoshi Inoue, Shizuoka, JP;
Assignee:
Yamaha Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10C / ;
U.S. Cl.
CPC ...
84243 ; 84221 ;
Abstract
A piano has a regulating button mechanism so as to cause a jack to escape from a hammer assembly, and the regulating button mechanism has a first regulating button and a second regulating button with which the jack is selectively brought into contact; and the jack imparts a force variable in dependence on the regulating button to the hammer assembly so as to generate loud or soft tones.