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:
Mar. 27, 2018

Filed:

Jan. 28, 2013
Applicants:

Hiroshi Yoshinaga, Chiba, JP;

Masahiko Satoh, Tokyo, JP;

Masaaki Yoshikawa, Tokyo, JP;

Kenji Ishii, Kanagawa, JP;

Tadashi Ogawa, Tokyo, JP;

Hiromasa Takagi, Tokyo, JP;

Naoki Iwaya, Tokyo, JP;

Takuya Seshita, Kanagawa, JP;

Takahiro Imada, Kanagawa, JP;

Hajime Gotoh, Kanagawa, JP;

Akira Suzuki, Tokyo, JP;

Teppei Kawata, Kanagawa, JP;

Toshihiko Shimokawa, Kanagawa, JP;

Arinobu Yoshiura, Kanagawa, JP;

Takamasa Hase, Shizuoka, JP;

Takeshi Uchitani, Kanagawa, JP;

Shuutaroh Yuasa, Kanagawa, JP;

Kensuke Yamaji, Kanagawa, JP;

Inventors:

Hiroshi Yoshinaga, Chiba, JP;

Masahiko Satoh, Tokyo, JP;

Masaaki Yoshikawa, Tokyo, JP;

Kenji Ishii, Kanagawa, JP;

Tadashi Ogawa, Tokyo, JP;

Hiromasa Takagi, Tokyo, JP;

Naoki Iwaya, Tokyo, JP;

Takuya Seshita, Kanagawa, JP;

Takahiro Imada, Kanagawa, JP;

Hajime Gotoh, Kanagawa, JP;

Akira Suzuki, Tokyo, JP;

Teppei Kawata, Kanagawa, JP;

Toshihiko Shimokawa, Kanagawa, JP;

Arinobu Yoshiura, Kanagawa, JP;

Takamasa Hase, Shizuoka, JP;

Takeshi Uchitani, Kanagawa, JP;

Shuutaroh Yuasa, Kanagawa, JP;

Kensuke Yamaji, Kanagawa, JP;

Assignee:

RICOH COMPANY, LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01);
U.S. Cl.
CPC ...
G03G 15/2064 (2013.01); G03G 15/2053 (2013.01); G03G 2215/2035 (2013.01);
Abstract

A fixing device includes: a rotatable endless fixing belt; a nip forming member arranged inside the fixing belt; a facing rotating body that abuts the nip forming member via the fixing belt to form a nip portion with the fixing belt; a heat source that directly heats up the fixing belt at a portion other than the nip portion; and a supporting member that supports the nip forming member. The fixing device conveys a recording medium carrying an unfixed image to the nip portion to fix the unfixed image to the recording medium, and the supporting member includes a rising portion extending in an abutting direction of the facing rotating body against the fixing belt and having a tip close to an inner circumferential surface of the fixing belt, and is set to have a section modulus of 200 mmor higher.


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