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:
Nov. 26, 2019
Filed:
Aug. 23, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Kazuo Terauchi, Numazu, JP;
Yojiro Hotta, Mishima, JP;
Koji Nishikawa, Susono, JP;
Masami Fujimoto, Suntou-gun, JP;
Takaaki Furui, Tokyo, JP;
Ryo Nagata, Mishima, JP;
Keisuke Tanaka, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A toner contains toner particles, titanate fine particles having a Group II element, and hydrotalcite compound fine particles as an external additive and satisfying 10≤Lt≤80 and 100≤Lh≤Weight average particle diameter (D4) of toner particles×0.50, when the number average particle diameter (D1) of primary particles of the titanate fine particles is defined as Lt (nm) and the number average particle diameter (D1) of primary particles of the hydrotalcite compound fine particles is defined as Lh (nm).