MAGNETIC SUBSTANCE, MAGNETIC TONER, AND MAGNETIC POWDER
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United States of America Patent
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Jan 31, 2019
app pub date -
Jan 19, 2017
filing date -
Jan 20, 2016
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Abstract
There is provided a magnetic substance containing substituted ε-iron oxide particles applicable as a magnetic toner of one-component development system, and a technique related thereto, which is the magnetic substance containing substituted ε-iron oxide particles in which a part of ε-iron oxide is substituted with a metal element other than iron, and satisfying at least one of the following conditions: (Condition 1) A molar extinction coefficient of a magnetic substance dispersion liquid at a wavelength of 450 nm is less than 770 dm3 mol−1 cm−1. (Condition 2) A molar extinction coefficient of the magnetic substance dispersion liquid at a wavelength of 500 nm is less than 430 dm3 mol−1 cm−1.
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