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. 07, 2021
Filed:
Feb. 27, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Hiroki Akiyama, Suntou-gun, JP;
Shuhei Moribe, Mishima, JP;
Hiroyuki Tomono, Numazu, JP;
Tatsuya Saeki, Suntou-gun, JP;
Hiroki Kagawa, Mishima, JP;
Atsuhiko Ohmori, Yokohama, JP;
Katsuhisa Yamazaki, Numazu, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A toner including a toner particle containing a binder resin, wherein the binder resin contains a crystalline resin, and in viscoelasticity measurement of the toner with Tp being a peak temperature of an endothermic peak derived from the crystalline resin in DSC of the toner, given G'(Tp−5, 0.01 Hz) as a storage modulus at a temperature of Tp−5° C. and a frequency of 0.01 Hz, G′(Tp−5, 10 Hz) as a storage modulus at a temperature of Tp−5° C. and a frequency of 10 Hz, and G′(Tp−30, 10 Hz) as a storage modulus at a temperature of Tp−30° C. and a frequency of 10 Hz, the following formulae are satisfied:′(−30,10 Hz)/′(−5,0.01 Hz)≤1.40′(−5,10 Hz)/′(−5,0.01 Hz)≤2.20.