US Patent Issued to CANON on Sept. 29 for "Toner" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,748,357, issued on Sept. 29, was assigned to CANON K.K. (Tokyo).

"Toner" was invented by Naoya Isono (Shizuoka, Japan), Kenji Ookubo (Shizuoka, Japan) and Masaya Komuro (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A toner comprising a toner particle comprising: a toner base particle comprising a binder resin; and an organosilicon polymer at a surface of the toner base particle, wherein protruded portions constituted from the organosilicon polymer are present at the surface of the toner base particle, when a protruded portion having a height of 30 to 200 nm among the protruded portions is defined as a protrusion x, and the protrusion ...