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:
Feb. 15, 2022
Filed:
Dec. 09, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Toru Takahashi, Toride, JP;
Daisuke Tsujimoto, Tokyo, JP;
Hiroki Watanabe, Matsudo, JP;
Yoshihiro Ogawa, Toride, JP;
Wakashi Iida, Toride, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A toner having an adequate storage stability and adequately suppressing an ejected paper adhesion, while achieving improving low-temperature fixability, has a toner particle containing a binder resin and a plasticizer, wherein Tg1 is 53° C. or lower and Tg2 is 55° C. or higher, in DSC measurement using the toner as a sample, when the following steps (i) to (iii) are performed: (i): the temperature of the toner is raised for the first time at a rate of temperature increase of 10° C./min, (ii): after the step (i), the temperature of the toner is lowered at a rate of temperature decrease of 10° C./min, (iii): after the step (ii), the temperature of the toner is raised for the second time at a rate of temperature increase of 10° C./min, Tg1 represents a glass transition temperature measured at the step (i), and Tg2 represents a glass transition temperature measured at the step (iii).