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:
Sep. 17, 2013
Filed:
Nov. 14, 2011
Tomohiro Shuta, Kanagawa, JP;
Tomohiro Shuta, Kanagawa, JP;
Ricoh Co., Ltd., Tokyo, JP;
Abstract
A discharge energy recovery device to recover discharge energy discharged from a piezoelectric element when the piezoelectric element is driven includes a drive voltage generator to generate a voltage to drive the piezoelectric element; a discharge voltage monitoring unit to monitor a discharge voltage discharged from the piezoelectric element when the piezoelectric element is driven by the drive voltage generator; a plurality of charge accumulating devices to accumulate a charge corresponding to a voltage monitored by the discharged voltage discharge voltage monitoring unit; and a selection unit to select one or more charge accumulating devices from the plurality of charge accumulating devices having capacity sufficient to enable accumulation of the charge corresponding to the voltage monitored by the discharge voltage monitoring unit.