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:
Mar. 08, 2005
Filed:
Jan. 10, 2002
Applicant:
Tomonori Ichikawa, Hamamatsu, JP;
Inventor:
Tomonori Ichikawa, Hamamatsu, JP;
Assignee:
Yamaha Corporation, Hamamatsu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10C003/02 ;
U.S. Cl.
CPC ...
Abstract
An acoustic piano is equipped with a desk board fallen down onto and raised on a desk rail, wherein a one-way clutch and releaser are provided between the desk rail and a shaft connected to the desk board so that a pianist raises the desk board and keeps it at the optimum angular position without any prop.