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:
May. 17, 2022
Filed:
Sep. 22, 2020
Furukawa Electric Co., Ltd., Tokyo, JP;
Uacj Corporation, Tokyo, JP;
Kimie Imakawa, Tokyo, JP;
Toshihiro Nakamura, Tokyo, JP;
Hideki Takahashi, Tokyo, JP;
Keita Yoshimura, Tokyo, JP;
Wataru Kumagai, Tokyo, JP;
Naoki Kitamura, Tokyo, JP;
Kotaro Kitawaki, Tokyo, JP;
FURUKAWA ELECTRIC CO., LTD., Tokyo, JP;
UACJ CORPORATION, Tokyo, JP;
Abstract
An aluminum alloy substrate () for magnetic disk satisfies at least two of three inequalities of an inequality group [A] and satisfies all of four inequalities of an inequality group [B], or satisfies at least two of the three inequalities of the inequality group [A] and satisfies all of four inequalities of an inequality group [C], when a plate thickness of the disk at a position (b1) is defined as t, a plate thickness at a position (b2) is defined as t, a plate thickness at a position (b3) is defined as t, a plate thickness at a position (a1) is defined as t, a plate thickness at a position (a2) is defined as t, and a plate thickness at a position (a3) is defined as t.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile