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. 05, 2013
Filed:
Jul. 07, 2008
Applicant:
Shigeru Muramatsu, Mori-machi, JP;
Inventor:
Shigeru Muramatsu, Mori-machi, JP;
Assignee:
Yamaha Corporation, Hamamatsu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electronic keyboard musical instrument has a load applier, which gives rise to inner force sense equivalent to another musical instrument such as a piano in the player through black keys and white keys, and the load applier has a mechanical load applier applying a part of load to the keys and an electromechanical load applier applying a remaining part of load to the keys so that the manufacturer can reduce the actuator in size.