US Patent Issued to UACJ, FURUKAWA ELECTRIC on Aug. 25 for "Aluminum alloy disc blank for magnetic disc and magnetic disc" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,716,117, issued on Aug. 25, was assigned to UACJ Corp. (Tokyo) and FURUKAWA ELECTRIC Co. LTD. (Tokyo).

"Aluminum alloy disc blank for magnetic disc and magnetic disc" was invented by Kotaro Kitawaki (Tokyo), Wataru Kamagai (Tokyo), Ryo Sakamoto (Tokyo) and Hideyuki Hatakeyama (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An aluminum alloy disc blank for a magnetic disc made of an aluminum alloy containing Mg: 3.40 to 3.90 mass % with the balance being Al and inevitable impurities, wherein a conductivity of the aluminum alloy disc blank is 36.0% IACS or higher."

The patent was filed on June 14, 2023, under Application No. 18/334,643.

*For furth...