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:
Mar. 03, 1998
Filed:
Jul. 19, 1996
Applicant:
Inventors:
Shoji Sakai, Toyota, JP;
Toshiyuki Kawai, Toyohashi, JP;
Hironori Asa, Okazaki, JP;
Sadahisa Onimaru, Chiryu, JP;
Mitsuo Inagaki, Okazaki, JP;
Assignee:
Nippon Soken, Inc., Aichi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ; H01M / ; H02J / ;
U.S. Cl.
CPC ...
320 30 ; 320 32 ; 320 35 ; 320 39 ; 320 48 ;
Abstract
A charging apparatus for a rechargeable storage battery is disclosed which charges the battery at a constant current. The charging apparatus monitors a variation in voltage of the battery during charge and finds a minimum value thereof to estimate the amount of capacity of the battery consumed before charge for determining the charge time required for charging the battery fully based on the estimate of the amount of capacity and the temperature of the battery.