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:
Mar. 26, 2019
Filed:
May. 02, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Sho Kimura, Kashiwa, JP;
Shuhei Moribe, Mishima, JP;
Takashi Matsui, Mishima, JP;
Hiroyuki Tomono, Numazu, JP;
Shotaro Nomura, Suntou-gun, JP;
Atsuhiko Ohmori, Yokohama, JP;
Takuya Mizuguchi, Suntou-gun, JP;
Tatsuya Saeki, Suntou-gun, JP;
Katsuhisa Yamazaki, Numazu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A toner comprising: a toner particle containing a binder resin and a colorant; and an external additive, wherein the external additive is a composite particle having an organic substance and an organosilicon polymer coating layer on the surface of the organic substance, and when a curve for the variation (dE'/dT) in the storage elastic modulus E′ of the toner with respect to temperature T [° C.] is obtained on the basis of a curve of the temperature T—the storage elastic modulus E′ [Pa] of the toner, as determined by powder dynamic viscoelasticity measurements of the toner, the relative minimum value on the lowest temperature side between the onset temperature and 90° C. is −1.35×10or less.