The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 2026
Filed:
Jun. 14, 2023
Applicants:
Uacj Corporation, Tokyo, JP;
Furukawa Electric Co., Ltd., Tokyo, JP;
Inventors:
Kotaro Kitawaki, Tokyo, JP;
Wataru Kamagai, Tokyo, JP;
Ryo Sakamoto, Tokyo, JP;
Hideyuki Hatakeyama, Tokyo, JP;
Assignees:
UACJ CORPORATION, Tokyo, JP;
FURUKAWA ELECTRIC CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C 21/08 (2006.01); C22C 1/02 (2006.01); C22F 1/047 (2006.01); G11B 5/73 (2006.01); G11B 5/84 (2006.01); H01F 1/147 (2006.01);
U.S. Cl.
CPC ...
C22C 21/08 (2013.01); C22C 1/02 (2013.01); C22F 1/047 (2013.01); G11B 5/73919 (2019.05); G11B 5/84 (2013.01); H01F 1/147 (2013.01); C22C 2202/02 (2013.01);
Abstract
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.
Kitawaki, Kotaro. (2026). Aluminum alloy disc blank for magnetic disc and magnetic disc (U.S. Patent No. 12716117). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12716117
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile