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:
May. 15, 2012
Filed:
Dec. 12, 2007
Hideo Suzuki (Deceased), Hamamatsu, JP;
Emiko Suzuki, Legal Representative, Hamamatsu, JP;
Hideo Suzuki (Deceased), Hamamatsu, JP;
Emiko Suzuki, legal representative, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu-Shi, JP;
Abstract
A fuel cell system includes a fuel cell, an auxiliary unit, a sound volume acquisition unit, and a control unit. The fuel cell supplies an electric power to a sound generating device that generates a sound. The auxiliary unit allows the fuel cell to generate the electric power. The sound volume acquisition unit acquires information that is related to at least one of the volume of the sound that is generated by the sound generating device and the volume of an environmental sound. The control unit controls the operations of the auxiliary unit, based on the information acquired by the sound volume acquisition unit.