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US 2022/0155702 A1Published application
Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer
AssigneePowdertech Co., Ltd.
InventorsMakoto ISHIKAWA, Tetsuya UEMURA
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Abstract
The present invention relates to a ferrite particle, containing a crystal phase component containing a perovskite crystal represented by the compositional formula: RZrO3 (provided that R represents an alkaline earth metal element), and having an apparent density in a range represented by the following formula: 1.90≤Y≤2.45 provided that Y in the formula is the apparent density (g/cm3) of the ferrite particle.
Claims11
A ferrite particle,
- comprising a crystal phase component comprising a perovskite crystal represented by the compositional formula:
- RZrO3 (provided that R represents an alkaline earth metal element), and
- having an apparent density in a range represented by the following formula:
- 1.90≤Y≤2.45
- provided that Y in the formula is the apparent density (g/cm3) of the ferrite particle.
2 more elements
Dependencies are inferred from the claim text.