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:
Aug. 31, 2010
Filed:
Mar. 19, 2007
Applicants:
Takahiro Yamashita, Sumoto, JP;
Tomoya Fukuda, Minami-awaji, JP;
Inventors:
Takahiro Yamashita, Sumoto, JP;
Tomoya Fukuda, Minami-awaji, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/04 (2006.01); H02J 7/16 (2006.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for charging a rechargeable battery by using a charge power supply that charges the rechargeable battery at constant voltage is provided. A pulse charge operation is performed at a charge process start. The charge process is stopped when current in the pulse charge operation is not greater than a predetermined value and it is determined that the rechargeable battery is in a full-charge state. On the other hand, the rechargeable battery is charged at constant voltage when the current in the pulse charge operation is greater than the predetermined value.