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US 12,625,441 B2Granted
Electrostatic charge image developing toner and image forming method
AssigneeKonica Minolta, Inc.
InventorsYuya Kubo, Takanari Kayamori, Naoya Tonegawa, Noboru Ueda
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Abstract
Disclosed is an electrostatic charge image developing toner including: toner base particles containing at least a binder resin and a magnetic material; and an external additive, wherein the binder resin contains a crystalline resin; and the external additive contains strontium titanate particles doped with metal elements other than titanium and strontium.
Claims10
An electrostatic charge image developing toner comprising:
- toner base particles containing at least a binder resin and a magnetic material;
- and an external additive,
- wherein the binder resin contains a crystalline resin and a hybrid amorphous polyester resin,
- the external additive contains strontium titanate particles doped with metal elements other than titanium and strontium, and
- a content of the magnetic material is in a range of 35 to 50 mass % based on a total mass of the toner base particles.
2 more elements
Dependencies are inferred from the claim text.