ALEXANDRIA, Va., June 5 -- United States Patent no. 12,276,937, issued on April 15, was assigned to ZEON Corp. (Tokyo).
"Magenta toner and method for producing the magenta toner" was invented by Masashi Watanabe (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a magenta toner which shows sharper color and higher reflection density than ever before, which is excellent in balance between low-temperature fixability and heat-resistant shelf stability, and which has excellent printing durability. Also provided is a method for producing the magenta toner. The magenta toner contains a binder resin and a magenta colorant, wherein a magenta pigment A, which is obtained by surface-treating a pigment r...