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.

Date of Patent:
Sep. 03, 2024

Filed:

Sep. 03, 2021
Applicant:

Fujifilm Business Innovation Corp., Tokyo, JP;

Inventors:

Daisuke Tomita, Kanagawa, JP;

Hiroshi Nakazawa, Kanagawa, JP;

Yuji Isshiki, Kanagawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 9/08 (2006.01);
U.S. Cl.
CPC ...
G03G 9/0815 (2013.01); G03G 9/0804 (2013.01); G03G 9/0821 (2013.01);
Abstract

A method for producing a toner for developing an electrostatic charge image includes aggregating at least resin particles and releasing agent particles contained in a dispersion to form aggregated particles; heating and fusing the aggregated particles to prepare a dispersion containing fused particles; and cooling the dispersion containing the fused particles to a temperature equal to or lower than a temperature 30° C. lower than an endothermic peak onset temperature derived from a releasing agent that constitutes the releasing agent particles, in which, in the cooling, the dispersion is cooled at a rate of 30° C./min or more and 130° C./min or less.


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