ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,159, issued on May 12, was assigned to KYOCERA Document Solutions Inc. (Osaka, Japan).
"Polyarylate resin and electrophotographic photosensitive member" was invented by Jun Azuma (Osaka, Japan), Keiji Maruo (Osaka, Japan) and Kenji Kitaguchi (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A polyarylate resin includes repeating units represented by formulas (1), (2), (3), and (4). A percentage of the number of repeats of the repeating unit represented by formula (3) relative to the total number of repeats of the respective repeating units represented by formulas (1) and (3) is greater than 0% and less than 20%. In formula (1), R1 and R2 e...