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:
Dec. 29, 2020
Filed:
Jan. 10, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Ryo Yashiro, Tokyo, JP;
Shuichi Tamura, Moriya, JP;
Hiroshi Miyamoto, Kawaguchi, JP;
Naoyuki Yamamoto, Nagareyama, JP;
Shinsuke Takahashi, Kashiwa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A fixing device including an endless belt, a heat source, a rotatable member forming a nip together with a belt, a nip forming member, a contact member contacting an inner peripheral surface of the belt, a reflecting portion reflecting radiation heat from the heat source toward the nip forming member, a heat conducting portion, and a heat insulating member. The nip forming member includes a first member having a U-shape made of metal and open on a side opposite from the rotatable member and a second member provided inside the first member. The heat conducting portion conducts heat of the reflecting portion to the contact member. The heat insulating member is provided between the first member and the second member. A thickness t (μm) and thermal conductivity λ (W/m·K) of the heat insulating member satisfy:≥100 (μm)0.02 (W/m·K)≤λ≤0.05 (W/m·K).