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:
Jan. 24, 2012
Filed:
Mar. 17, 2010
Eiji Nemoto, Tokyo, JP;
Norikazu Okada, Kanagawa, JP;
Eiji Nemoto, Tokyo, JP;
Norikazu Okada, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A heater controlling apparatus for controlling supply of alternating current power to at least one heater that heats a heating object includes a detection unit configured to detect a temperature of the heating object, a determining unit configured to determine a proportion of lighting time for lighting the heater based on the detected temperature and a preset target temperature of the heating object, and a control unit configured to control the supply of alternating current power to the heater based on both a control cycle and one or more lighting patterns, the heater being lit according to the one or more lighting patterns defined for each control cycle, and both the control cycle and the lighting pattern varying in response to the determined proportion of lighting time.