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:
May. 08, 2018
Filed:
Sep. 08, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Yoshitaka Suzumura, Mishima, JP;
Yusuke Hasegawa, Suntou-gun, JP;
Tomohisa Sano, Mishima, JP;
Atsuhiko Ohmori, Yokohama, JP;
Kozue Uratani, Mishima, JP;
Yuujirou Nagashima, Susono, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
Provided is a toner including a binder resin, a colorant, a crystalline polyester, and a release agent, wherein a cross-sectional image of the toner is observed using a scanning transmission electron microscope, domains of the crystalline polyester are present in the cross-sectional image of the toner, the domains have a number-average major diameter of at least 50 nm and not more than 300 nm, the number of the domains is at least 8 and not more than 500, and the domains are present at least 60 number % and not more than 100 number % from an outline of the cross-sectional image to 25% of the distance between the outline and the centroid of the cross-sectional image.