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:
Mar. 07, 2023
Filed:
Apr. 05, 2021
Canon Kabushiki Kaisha, Tokyo, JP;
Yuhei Terui, Shizuoka, JP;
Takeshi Tsujino, Shizuoka, JP;
Junya Asaoka, Shizuoka, JP;
Yuu Sasano, Shizuoka, JP;
Koki Inoue, Shizuoka, JP;
Shohei Yamashita, Shizuoka, JP;
Shota Amano, Kanagawa, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A toner having a toner particle including a toner base particle and an organosilicon polymer coating the toner base particle, wherein when S1 (μm) is a total area of a non-coated part not coated with the organosilicon polymer on an outermost surface of the toner particle, S2 (μm) is a total area of a coated part coated with the organosilicon polymer on the outermost surface of the toner particle, and SA1 (μm) is a total of areas of non-coated part domains D1 with an area of not more than 0.10 μmin size in the non-coated part not coated with the organosilicon polymer, formulae (1) and (2) below are satisfied.0.45≤[2/(1+2)]≤0.65  (1)(1/1)≥0.50  (2)