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:
Aug. 25, 2009
Filed:
May. 23, 2007
Naoki Sato, Kanagawa, JP;
Masayuki Ohtani, Kanagawa, JP;
Masahide Nakaya, Kanagawa, JP;
Hideo Kikuchi, Kanagawa, JP;
Naoki Sato, Kanagawa, JP;
Masayuki Ohtani, Kanagawa, JP;
Masahide Nakaya, Kanagawa, JP;
Hideo Kikuchi, Kanagawa, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A power storage device includes an alternating current (AC) power source, a field effect transistor (FET), a capacitor bank, a direct current (DC) fixing heater, a step-down chopper circuit, and an output control unit. The FET switches between a first path and a second path to supply power from the AC power source in combination with a diode and an IGBT. The capacitor bank is arranged on the first path, and includes capacitor cells. The DC fixing heater is arranged on the second path. The step-down chopper circuit is arranged on the first path, and changes a voltage value of power supplied from the AC power source. The output control unit controls, when power is supplied to the first path, controls the step-down chopper circuit to change a voltage value based on a charging voltage of the capacitor cells.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile