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US 10,503,091 B2Granted
Carrier for electrostatic image development and electrostatic image developer
AssigneeFuji Xerox Co., Ltd.
InventorsYosuke Tsurumi, Moegi Iguchi, Shintaro Anno, Toshiaki Hasegawa
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Abstract
A carrier for electrostatic image development includes: resin-coated magnetic particles each including a magnetic particle and a resin layer that covers the magnetic particle; and strontium titanate particles composed of primary particles having an average circularity of 0.82 to 0.94 and an 84% cumulative circularity of more than 0.92.
Claims7
A carrier for electrostatic image development, the carrier comprising:
- resin-coated magnetic particles each including a magnetic particle and a resin layer that covers the magnetic particle;
- and
- strontium titanate particles,
- wherein the strontium titanate particles are composed of primary particles having an average circularity of 0.82 to 0.94 and an 84% cumulative circularity of more than 0.92,
- wherein the strontium titanate particles in which a half width of a (110) peak obtained by an X-ray diffraction method is 0.2° to 2.0°,
- wherein the strontium titanate particles have an average primary particle diameter of 15 nm to 60 nm.
3 more elements
Dependencies are inferred from the claim text.