US Patent Issued to CANON on Aug. 25 for "External additive for toner and toner" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,717,252, issued on Aug. 25, was assigned to CANON K.K. (Tokyo).

"External additive for toner and toner" was invented by Junichi Tamura (Ibaraki, Japan), Ichiro Kanno (Chiba, Japan), Yukihiro Abe (Chiba, Japan), Mari Kaburagi (Chiba, Japan), Hayato Ida (Ibaraki, Japan), Masao Suzuki (Kanagawa, Japan), Kei Inoue (Kanagawa, Japan) and Waka Hasegawa (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The external additive for toner includes an external additive particle containing: a base particle A; and a plurality of convex forming particles B each configured to form a convex portion on a surface of the base particle A. The base particle A and the conve...