US Patent Issued to CANON on Sept. 30 for "Toner" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,429,791, issued on Sept. 30, was assigned to CANON K.K. (Tokyo).

"Toner" was invented by Kazunari Ooyama (Ibaraki, Japan), Yuu Nishimura (Chiba, Japan), Nobuyoshi Sugahara (Tokyo), Hitoshi Sano (Chiba, Japan), Toru Takahashi (Ibaraki, Japan), Kazuki Murata (Tokyo), Daisuke Tsujimoto (Tokyo), Koh Ishigami (Chiba, Japan), Shin Kitamura (Ibaraki, Japan), Takaho Shibata (Tokyo) and Ryo Nakajima (Chiba, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A toner includes toner particles containing a binder resin, a colorant, and inorganic fine particles, in which in a depth profile of an element distribution in a depth region from the outermost surface of ...