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:
Jun. 13, 2023

Filed:

Aug. 20, 2021
Applicant:

Fujifilm Business Innovation Corp., Tokyo, JP;

Inventors:

Daisuke Tomita, Kanagawa, JP;

Keita Yamamoto, Kanagawa, JP;

Daisuke Noguchi, Kanagawa, JP;

Kazuhiko Nakamura, Kanagawa, JP;

Hiroshi Nakazawa, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/087 (2006.01); G03G 9/08 (2006.01); G03G 9/083 (2006.01); G03G 9/09 (2006.01); G03G 15/06 (2006.01);
U.S. Cl.
CPC ...
G03G 9/08755 (2013.01); G03G 9/083 (2013.01); G03G 9/0819 (2013.01); G03G 9/0902 (2013.01); G03G 9/0906 (2013.01); G03G 15/06 (2013.01);
Abstract

An electrostatic image developing toner includes toner particles containing a binder resin. In a differential scanning calorimetry curve of the toner particles, Tg1 is 58° C. or more and 68° C. or less, and Tg1−Tg2 is 20° C. or more and 40° C. or less, where Tg1 is a lowest onset temperature in an endothermic change during a first temperature increase, and Tg2 is a lowest onset temperature in an endothermic change during a second temperature increase.


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