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:
Oct. 19, 2004
Filed:
Sep. 19, 2002
Makoto Suzuki, Chiba, JP;
Takaya Sato, Chiba, JP;
Nisshinbo Ind. Inc., Tokyo, JP;
Abstract
An accumulator power supply unit equalizing the voltage between terminals of the respective accumulator block to be a predetermined value without being affected by different characteristics of the accumulator block such as electric double layer capacitor and secondary battery in series or serial-parallel connection. The accumulator power supply unit comprises plural accumulator blocks in a series connection or a serial-parallel connection and plural transform charging circuits connected in parallel to the respective accumulator block, wherein the respective accumulator block is independently charged by the transform charging circuit and a control method for the same.