18906797. TONER (CANON KABUSHIKI KAISHA)
TONER
Organization Name
Inventor(s)
RYUICHIRO Matsuo of Ibaraki JP
TONER
This abstract first appeared for US patent application 18906797 titled 'TONER
Original Abstract Submitted
A toner including a toner particle and a composite particle present on a surface of the toner particle. The composite particle includes a fine particle A containing, as a binder component, an organic silicon compound, and a fine particle B which is an inorganic fine particle. The fine particle B is present in a state where a part of the fine particle B is embedded in a surface of the fine particle A. Proportions of silicon atoms in bifunctional to tetrafunctional silane monomers of the fine particle A satisfy predetermined relationships. A primary particle of the fine particle B has a number average particle diameter of 0.01 μm or greater and 0.06 μm or less. An average value of embedding ratios of the fine particle B to the fine particle A in the composite particle is 30% or greater and 90% or less.