Patent 7749669 was granted and assigned to Konica Minolta Holdings on July, 2010 by the United States Patent and Trademark Office.
An electrophotographic toner which achieves superior coloring without exhibiting any difficulty in dispersibility in thermoplastic resin while exhibiting improved characteristics, is disclosed, comprising a thermoplastic resin and a metal chelate dye contained in the thermoplastic resin and represented by the following formula:M(L1)(L2)n(X1)m(X2)1.W1 Image forming method by use of the toner is also disclosed.