US Patent Issued to POWDERTECH on Aug. 12 for "Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,386,281, issued on Aug. 12, was assigned to POWDERTECH Co. LTD. (Kashiwa, Japan).

"Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer" was invented by Makoto Ishikawa (Chiba, Japan) and Tetsuya Uemura (Chiba, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides: a ferrite particle containing a crystal phase component containing a perovskite crystal represented by the compositional formula RZrO3 (where R is an alkaline earth metal element); and an electrophotographic developer carrier core material, an electrophotographic developer...