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. 30, 2011
Filed:
Mar. 02, 2007
Applicant:
Hideo Kikuchi, Kanagawa, JP;
Inventor:
Hideo Kikuchi, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A step-down circuit lowers a voltage outputted from a commercial power supply. A step-down-output control and charge control circuit controls a step-down voltage and charges a capacitor bank based on a step-down voltage outputted. A constant-voltage generating circuit generates a constant voltage based on an output of the capacitor bank or an output of the step-down circuit. An image-forming-apparatus control circuit supplies the constant voltage to a load that performs an image forming operation.