US Patent Issued to ZEON on Nov. 3 for "Toner" (Japanese Inventor)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,782,838, issued on Nov. 3, was assigned to ZEON Corp. (Tokyo).

"Toner" was invented by Kojiro Akazaki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A toner excellent in low-temperature fixing property and shelf stability. The toner comprising colored resin particles containing a binder resin, a colorant, a softening agent and a charge control agent, and an external additive, wherein a glass transition temperature (Tg) specified from a temperature dependence curve for a loss tangent (tan Delta) of the toner, which is obtained by a dynamic viscoelastic measurement of the toner at a measurement frequency of 24 Hz, satisfies 45deg C.greater thanTg(de...