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. 25, 2004
Filed:
Jan. 30, 2002
Tokyo R & D Co., Ltd., Tokyo, JP;
Abstract
An electric device comprises a plurality of detachable battery units ( ), each consisting of a set of storage battery packs ( B, B, B) and memories ( ) storing information about the charge and discharge states of the battery packs. Connectors are provided to connect and disconnect an electric device ( ) electrically incident to each battery unit being attached or detached. The device includes a driver ( ) for driving a load, a charger ( ) for charging the storage battery packs ( B, B, B) by referring to the information stored in the memories ( ) of the respective mounted battery units ( ), and a controller ( ) for controlling the electric power supplied from the individual battery units ( ) to the driver ( ) by referring to the above-mentioned information.