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. 03, 2017
Filed:
Feb. 01, 2016
Takayuki Seki, Kanagawa, JP;
Susumu Matsusaka, Kanagawa, JP;
Yasuhiko Ogino, Kanagawa, JP;
Shohta Kobashigawa, Tokyo, JP;
Kenji Ishii, Kanagawa, JP;
Kazuhito Kishi, Kanagawa, JP;
Takashi Seto, Kanagawa, JP;
Ippei Fujimoto, Kanagawa, JP;
Kazunari Sawada, Tokyo, JP;
Hiroshi Yoshinaga, Chiba, JP;
Takayuki Seki, Kanagawa, JP;
Susumu Matsusaka, Kanagawa, JP;
Yasuhiko Ogino, Kanagawa, JP;
Shohta Kobashigawa, Tokyo, JP;
Kenji Ishii, Kanagawa, JP;
Kazuhito Kishi, Kanagawa, JP;
Takashi Seto, Kanagawa, JP;
Ippei Fujimoto, Kanagawa, JP;
Kazunari Sawada, Tokyo, JP;
Hiroshi Yoshinaga, Chiba, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A fixing device includes a first heater and a second heater disposed inside a fixing rotator to heat the fixing rotator. The first heater generates an increased amount of heat and includes a first heat generator having a first heating span in a longitudinal direction of the first heater. The second heater generates a decreased amount of heat and includes a second heat generator having a second heating span in a longitudinal direction of the second heater. A partition is interposed between the first heater and the second heater to define a first compartment having an increased size and accommodating the first heater and a second compartment having a decreased size and accommodating the second heater.