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. 08, 2007
Filed:
Aug. 28, 2003
Applicants:
Yoshitsugu Kato, Osaka, JP;
Hirohito Funato, Utsunomiya, JP;
Alexandru Forrai, Amagasaki, JP;
Inventors:
Assignee:
ESPEC Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
A battery state diagnosing device applies load to a battery from a load applying section, measures input and output characteristics of the battery, and diagnoses a state of the battery by plugging a result of measurement into a mathematical expression obtained by a system identification method. In the battery state diagnosing device, a current load is used as the load applying section. With this arrangement, the battery state diagnosing device is capable of suitably determining, for example, life and state-of-charge of the battery.