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. 28, 2021
Filed:
Jun. 02, 2021
Canon Kabushiki Kaisha, Tokyo, JP;
Hirotaka Fukushima, Tochigi, JP;
Yusuke Owaki, Tochigi, JP;
Yoshiko Igarashi, Tochigi, JP;
Hidetaka Nanao, Iwate, JP;
Yasushi Hoshi, Iwate, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A thermal fixing apparatus, including a rotatable first member; a heater heating the first member; a rotatable second member forming a nip portion with the first member; and a pressurizing member disposed inside the first member, and having a contact surface with an inner surface of the first member. The pressurizing member includes a surface layer constituting the contact surface, and the surface layer comprises a diamond-like carbon film containing a hydrogen atom (H), a carbon atom (C) and a silicon atom (Si). 100×(H)/((H)+(C)) is 5 or less. 100×(Si)/((Si)+(C)) is 1 to 20. Between the contact surface and an inner circumferential surface of the first member, an oil film containing a fluorinated oil and a silicone oil is present.