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. 24, 2009
Filed:
Aug. 31, 2006
Ryotaro Sugimoto, Shizuoka, JP;
Takeshi Ando, Hamamatsu, JP;
Seiji Abe, Hamamatsu, JP;
Shinya Sakurada, Hamamatsu, JP;
Ryotaro Sugimoto, Shizuoka, JP;
Takeshi Ando, Hamamatsu, JP;
Seiji Abe, Hamamatsu, JP;
Shinya Sakurada, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu-Shi, JP;
Abstract
Fuel battery generates electric power using a predetermined fuel, and activation and deactivation of the electric power generation can be controlled in accordance with whether or not the fuel should be supplied to the fuel battery. The electric power is supplied to individual circuits/devices of a tone generation section, so that a tone is generated by any of the circuits/devices operating in response to operation of a performance operator unit. The circuits/devices are allowed to electrically operate for a long time with the electric power supplied by the fuel battery. In this way, an electronic musical instrument using the fuel battery can operate for a long time as compared to the conventional electronic musical instruments using a dry battery or storage battery (secondary battery).