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:
May. 21, 2019
Filed:
Jun. 20, 2017
Hiroshi Yoshinaga, Chiba, JP;
Kenji Ishii, Kanagawa, JP;
Ippei Fujimoto, Kanagawa, JP;
Takashi Seto, Kanagawa, JP;
Takayuki Seki, Kanagawa, JP;
Kazunari Sawada, Shizuoka, JP;
Ryohei Matsuda, Kanagawa, JP;
Hiroshi Yoshinaga, Chiba, JP;
Kenji Ishii, Kanagawa, JP;
Ippei Fujimoto, Kanagawa, JP;
Takashi Seto, Kanagawa, JP;
Takayuki Seki, Kanagawa, JP;
Kazunari Sawada, Shizuoka, JP;
Ryohei Matsuda, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A fixing device includes an endless belt and a pressure rotator disposed opposite an outer circumferential surface of the endless belt. The pressure rotator has a first span in an axial direction of the endless belt. A nip formation pad, which is disposed opposite an inner circumferential surface of the endless belt, forms a fixing nip between the endless belt and the pressure rotator. The nip formation pad includes a belt-side face disposed opposite the endless belt. A radiant heater, which is disposed opposite the inner circumferential surface of the endless belt, heats the endless belt. A thermal conduction aid, which contacts the belt-side face of the nip formation pad, conducts heat in the axial direction of the endless belt. The thermal conduction aid has a second span within which the first span of the pressure rotator is provided at the fixing nip.