ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,210,317, issued on Jan. 28, was assigned to CANON K.K. (Tokyo).
"Toner, external additive for toner, and fine particle" was invented by Sara Yoshida (Shizuoka, Japan), Yusuke Kosaki (Shizuoka, Japan), Taiji Katsura (Shizuoka, Japan), Hidekazu Fumita (Shizuoka, Japan), Kentaro Yamawaki (Shizuoka, Japan) and Itaru Kondo (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A toner including: a toner particle containing a binder resin and a colorant; and a fine particle on a surface of the toner particle, wherein the fine particle is a solid and substantially hemispherical shape, and has a substantially flat surface and a curved surface, and wher...