ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,664, issued on March 17, was assigned to CANON K.K. (Tokyo).
"Toner and method for producing toner" was invented by Kenji Aoki (Shizuoka, Japan), Takashi Matsui (Shizuoka, Japan), Yu Yoshida (Shizuoka, Japan) and Yuna Yamamoto (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A toner having a toner particle having a binder resin, wherein in differential scanning calorimetry using the toner as a sample, a peak temperature of an endothermic peak derived from the binder resin at a first temperature rise is from 50deg C. to 70deg C., and an endothermic quantity per 1 g of the toner is from 30 J/g to 70 J/g, and when acetonitrile is used as a poor s...