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:
Jun. 20, 2023

Filed:

Sep. 01, 2022
Applicants:

Toshiyuki Kabata, Kanagawa, JP;

Yoshiki Yamaguchi, Kanagawa, JP;

Takashi Seto, Kanagawa, JP;

Hiroshi Yoshinaga, Chiba, JP;

Kentaro Yamashita, Shizuoka, JP;

Daisuke Inoue, Tokyo, JP;

Inventors:

Toshiyuki Kabata, Kanagawa, JP;

Yoshiki Yamaguchi, Kanagawa, JP;

Takashi Seto, Kanagawa, JP;

Hiroshi Yoshinaga, Chiba, JP;

Kentaro Yamashita, Shizuoka, JP;

Daisuke Inoue, Tokyo, JP;

Assignee:

RICOH COMPANY, LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01);
U.S. Cl.
CPC ...
G03G 15/2057 (2013.01); G03G 15/206 (2013.01); G03G 15/2014 (2013.01); G03G 15/2017 (2013.01); G03G 15/2053 (2013.01); G03G 2215/20 (2013.01); G03G 2215/2003 (2013.01); G03G 2215/2048 (2013.01); G03G 2215/2054 (2013.01);
Abstract

A nip former that forms a nip between an endless belt and a pressure rotator includes a base that is made of aluminum and has a nip forming face disposed opposite the nip. An anodic oxidation coating is treated with sealing and coats at least the nip forming face. The anodic oxidation coating has a thickness that is not smaller than 22 μm and is not greater than 45 μm and a variation in thickness that is not greater than 20 percent. The base and the anodic oxidation coating define a nip forming portion that is disposed opposite the nip. The nip forming portion has a thickness that is not smaller than 0.40 mm and is not greater than 1.20 mm.


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