Patent · US Expired

Toner

US7029813B2 · kind B2 · utility

13Cited by
10References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 21, 2003
Grant dateApr 18, 2006
Priority date
Expiry dateApr 15, 2024

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G9/09783
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

In a toner having toner particles containing at least a colorant, a release agent and a polar resin, and an inorganic fine powder, the polar resin contains a polyester resin obtained by carrying out polymerization in the presence of a titanium chelate compound as a catalyst, and has an acid value in a specific range. The toner particles are granulated in an aqueous medium and have a weight-average particle diameter in a specific range.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.