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:
Feb. 11, 2025
Filed:
Dec. 08, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Yosuke Kishi, Shizuoka, JP;
Kazuaki Iwata, Shizuoka, JP;
Minoru Ito, Shizuoka, JP;
Masaru Kobayashi, Kanagawa, JP;
Junji Seki, Kanagawa, JP;
Hiroaki Onuma, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A developing apparatus includes a developer bearing member; and a regulating member configured to come in contact with the developer bearing member, and regulate the thickness of the layer of the developer. The contact surface of the regulating member with the developer bearing member satisfies 3≤Rz<20 (μm), 30≤Sm≤100 (μm), and Vmp≥0.05 ml/mwhere Rz represents a maximum height roughness, and Sm represents an average interval of unevenness, and Vmp represents a volume in an initial state of a protruding peak part in parameters in a three-dimensional surface roughness defined in ISO 25178.