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:
May. 13, 2025
Filed:
Mar. 28, 2022
Fujifilm Business Innovation Corp., Tokyo, JP;
Shinya Sakamoto, Kanagawa, JP;
Daisuke Ishizuka, Kanagawa, JP;
Keita Yamamoto, Kanagawa, JP;
Eiji Kawakami, Kanagawa, JP;
FUJIFILM Business Innovation Corp., Tokyo, JP;
Abstract
A toner for developing an electrostatic charge image incorporates toner particles that contain binder resins including an amorphous polyester resin and a crystalline polyester resin, an ester-based release agent, and a polycondensate of a styrene-acrylic resin and a polyolefin resin. The polycondensate of styrene-acrylic and polyolefin resins has a storage modulus G'(70) at 70° C. of 1×10Pa or more and 1×10Pa or less and a storage modulus G′(90) at 90° C. of 1×10Pa or more and 1×10Pa or less in dynamic rheometry. The toner particles have a storage modulus G′(70) at 70° C. of 1×10Pa or more and 1×10Pa or less and a storage modulus G′(90) at 90° C. of 1×10Pa or more and 1×10Pa or less in dynamic rheometry.