US Patent Issued to CANON on June 23 for "Toner" (Japanese Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,736, issued on June 23, was assigned to CANON K.K. (Tokyo).

"Toner" was invented by Kazuyuki Sato (Kanagawa, Japan), Tomohisa Sano (Shizuoka, Japan), Tohru Hiramatsu (Shizuoka, Japan), Hiroki Kagawa (Shizuoka, Japan) and Shohei Shibahara (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A toner comprises a toner particle and silica fine particles, wherein, fragment ions of a D unit structure are observed in time-of-flight secondary ion mass spectrometry measurement of the silica fine particles, in a titration operation of the silica fine particles using NaOH, the titer is within a specific range, an area of a peak from -25 to -15 ppm i...