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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.:

US 12596314 B1

PDFFull Text
Date of Patent:
Apr. 07, 2026

Filed:

Jan. 16, 2023

Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method

Applicant:

Fujifilm Business Innovation Corp., Tokyo, JP;

Inventors:

Kohei Manabe, Kanagawa, JP;

Yukiaki Nakamura, Kanagawa, JP;

Takahisa Tatekawa, Kanagawa, JP;

Assignee:

FUJIFILM Business Innovation Corp., Tokyo, JP;

Attorney:

JCIPRNET

Primary Examiner:

Mark F Huff

Assistant Examiner:

Boone Alexander Evans

Int. Cl.
CPC ...
G03G 9/09 (2006.01); G03G 15/01 (2006.01); G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
G03G 9/0926 (2013.01); G03G 9/0908 (2013.01); G03G 9/091 (2013.01); G03G 9/0912 (2013.01); G03G 9/0924 (2013.01); G03G 15/0126 (2013.01); G03G 15/0865 (2013.01);
Abstract

An electrostatic charge image developing toner contains toner particles that contain an organic colorant and a binder resin, in which the organic colorant includes a non-fluorescent organic pigment and a fluorescent organic pigment, a total content of the organic colorant is 5% by mass or more and 20% by mass or less with respect to a total mass of the toner particles, and a specific gravity D1 of the non-fluorescent organic pigment and a specific gravity D2 of the fluorescent organic pigment satisfy both of Formulas (1) and (2).1≥2.0  Formula (1)1−2≥0.6  Formula (2).

Find Patent Forward Citations

Manabe, Kohei. (2026). Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method (U.S. Patent No. 12596314). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12596314

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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