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. 13, 2011
Filed:
May. 12, 2010
Applicants:
Toshio Horiguchi, Tokyo, JP;
Junichi Itoh, Nagaoka, JP;
Kouji Orikawa, Nagaoka, JP;
Inventors:
Assignees:
Olympus Corporation, Tokyo, JP;
National University Corporation Nagaoka University of Technology, Nagaoka-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/46 (2006.01); H01M 16/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A dual-power-supply system uses both a fuel cell and a chargeable secondary battery. A differential voltage adding unit adds a differential voltage between the voltage of the fuel cell and a necessary target output voltage to the voltage of the fuel cell by using the secondary battery, thereby obtaining an output voltage of the dual-power-supply system. A control unit detects the output voltage, and controls the differential voltage adding unit such that the output voltage is equal to the target output voltage.