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:
Apr. 25, 2023
Filed:
Mar. 04, 2022
Daisuke Inoue, Tokyo, JP;
Yuusuke Furuichi, Kanagawa, JP;
Hiroyuki Shimada, Tokyo, JP;
Yukimichi Someya, Saitama, JP;
Satoshi Tohkai, Kanagawa, JP;
Yumiko Hayashi, Kanagawa, JP;
Daisuke Inoue, Tokyo, JP;
Yuusuke Furuichi, Kanagawa, JP;
Hiroyuki Shimada, Tokyo, JP;
Yukimichi Someya, Saitama, JP;
Satoshi Tohkai, Kanagawa, JP;
Yumiko Hayashi, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A fixing device includes a rotator, a secured member, a pressure rotator, and lubricant. The rotator has flexibility and a sleeve form. The rotator includes an inner portion having a sliding surface. The inner portion has an elastic power of 55% or more. The secured member is disposed inside a loop of the rotator and has a slide surface on which the sliding surface of the rotator is to slide. The slide surface has a smaller surface roughness in a sliding direction of the rotator than a surface roughness of the sliding surface in the sliding direction of the rotator. The pressure rotator presses the rotator against the secured member and forms a nip between the rotator and the pressure rotator. The lubricant is provided between the rotator and the secured member.