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. 07, 2010
Filed:
Aug. 01, 2007
Applicant:
Isao Suzuki, Saitama, JP;
Inventor:
Isao Suzuki, Saitama, JP;
Assignee:
Sony corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/44 (2006.01); H01M 10/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
A battery pack is disclosed. The battery pack includes at least one battery, a switch section, a measurement section, and a deterioration level calculation section. The switch section turns on and off charging to the battery. The measurement section measures an open circuit voltage of the battery. The deterioration level calculation section calculates the deterioration level of the battery based on the open circuit voltage measured by the measurement section after the switch section has repeatedly turned on and off the charging 10 times or more.