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.

Date of Patent:
Dec. 19, 2023

Filed:

May. 12, 2022
Applicants:

Daisuke Inoue, Tokyo, JP;

Yuusuke Furuichi, Kanagawa, JP;

Hiroyuki Shimada, Tokyo, JP;

Yukimichi Someya, Saitama, JP;

Satoshi Tohkai, Kanagawa, JP;

Yumiko Hayashi, Kanagawa, JP;

Inventors:

Daisuke Inoue, Tokyo, JP;

Yuusuke Furuichi, Kanagawa, JP;

Hiroyuki Shimada, Tokyo, JP;

Yukimichi Someya, Saitama, JP;

Satoshi Tohkai, Kanagawa, JP;

Yumiko Hayashi, Kanagawa, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01);
U.S. Cl.
CPC ...
G03G 15/2053 (2013.01);
Abstract

A belt device includes a secured member, a belt, a pressure rotator, and lubricant. The belt has an endless shape and slides on a slide surface of the secured member. The belt has an inner portion having an elastic power of 55% or more and a sliding surface sliding on the slide surface of the secured member. The sliding surface has a surface roughness smaller than a surface roughness of the slide surface of the secured member. The pressure rotator presses the secured member via the belt to form a nip between the belt and the pressure rotator. The lubricant is interposed between the sliding surface of the belt and the slide surface of the secured member.


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