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:
Jul. 20, 1999
Filed:
Dec. 15, 1997
Applicant:
Inventor:
Tetsuya Okada, Sumoto, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
320132 ; 320150 ; 320134 ;
Abstract
The battery charging apparatus is provided with a memory circuit for pre-storing correlation data between rechargeable battery charge capacity and time to completion of charging, a charge capacity measuring circuit to measure rechargeable battery charge capacity, and a calculating circuit to calculate, during charging, the time to completion of charging based on charge capacity determined by the charge capacity measuring circuit and correlation data stored in the memory circuit.