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US 12,399,442 B2Granted
Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge
AssigneeFUJIFILM Business Innovation Corp.
InventorsYukiaki Nakamura, Tomoaki Tanaka, Ryutaro Kembo
Life of this patent
Estimating the term…
Abstract
An electrostatic charge image developing toner includes a toner particle that contains a pyrazolotriazole-based dye and a zirconium oxide particle.
Claims12
An electrostatic charge image developing toner comprising:
- a toner particle that contains a pyrazolotriazole-based dye, an acetylacetone metal compound and a zirconium oxide particle,
- wherein a content of the pyrazolotriazole-based dye is 0.5% by mass or greater and 30% by mass or less with respect to a total mass of the toner particles,
- a content ratio of the zirconium oxide particle to the pyrazolotriazole-based dye is 0.00015 or greater and 0.075 or less, and
- a content ratio of the acetylacetone metal compound to the pyrazolotriazole-based dye in the toner particles is 1.5 or greater and 3 or less,
- wherein the pyrazolotriazole-based dye includes a compound represented by Formulae (I-3), and the acetylacetone metal compound includes a compound represented by Formulae (II-34),
2 more elements
Dependencies are inferred from the claim text.