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:
Sep. 25, 2018
Filed:
Jun. 08, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Masayuki Hama, Toride, JP;
Hideki Kaneko, Yokohama, JP;
Takeshi Hashimoto, Moriya, JP;
Ichiro Kanno, Kashiwa, JP;
Nozomu Komatsu, Toride, JP;
Takakuni Kobori, Toride, JP;
Hiroyuki Fujikawa, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A toner comprising a toner particle containing a crystalline polyester resin and an amorphous polyester resin, wherein, in a cross-sectional observation of the toner by transmission electron microscopy (TEM), the number-average diameter (D1) of major axis lengths of the crystalline polyester resin dispersed up to a depth of 0.30 μm from a toner surface is 40 nm to 110 nm, and the number-average diameter (D1) of major axis lengths of the crystalline polyester resin dispersed deeper than 0.30 μm from the toner surface is 1.25 to 4.00 times the number-average diameter (D1) of the major axis lengths of the crystalline polyester resin dispersed up to a depth of 0.30 μm from the toner surface.