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:
Aug. 19, 2025
Filed:
Apr. 19, 2024
Fujifilm Business Innovation Corp., Tokyo, JP;
Asafumi Fujita, Kanagawa, JP;
Tomoaki Tanaka, Kanagawa, JP;
Kotaro Yoshihara, Kanagawa, JP;
Tsuyoshi Murakami, Kanagawa, JP;
FUJIFILM Business Innovation Corp., Tokyo, JP;
Abstract
A green toner for electrostatic charge image development includes green toner particles containing a binder resin, an azomethine fluorescent pigment having an emission peak in a wavelength region of 500 nm or more and 550 nm or less in an emission spectrum, and a non-fluorescent pigment having a reflection peak in a wavelength region of 480 nm or more and 540 nm or less in a reflection spectrum, wherein a mass proportion of the azomethine fluorescent pigment in the green toner particles is 3% by mass or more and 10% by mass or less and a mass ratio M1/M2 of a content M1 of the azomethine fluorescent pigment to a content M2 of the non-fluorescent pigment is 1 or more and 5 or less; and oil-treated silica particles externally added to the green toner particles.