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:
Jul. 25, 2017
Filed:
Jul. 30, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Kazuo Terauchi, Numazu, JP;
Koji Nishikawa, Susono, JP;
Shohei Tsuda, Suntou-gun, JP;
Yojiro Hotta, Mishima, JP;
Katsuhisa Yamazaki, Numazu, JP;
Takayuki Itakura, Mishima, JP;
Takeshi Naka, Suntou-gun, JP;
Motohide Shiozawa, Mishima, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
The toner comprising a toner particle containing a binder resin and a colorant, an iron oxide particle and an organic-inorganic composite fine particle, wherein the organic-inorganic composite fine particle comprises a vinyl resin particle, and inorganic fine particles which are embedded in the vinyl resin particle, and at least a part of which is exposed at surface of the organic-inorganic composite fine particle; the organic-inorganic composite fine particle has convexes derived from the inorganic fine particles, and wherein: a coverage ratio of the surface of the organic-inorganic composite fine particle with the inorganic fine particle is 20-70%; and the content of the iron oxide particle present on a surface of the toner particle is 0.1-5.0 mass % based on the mass of the toner particle.