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:
Nov. 07, 2023
Filed:
Oct. 30, 2019
Tanaka Kikinzoku Kogyo K.k., Tokyo, JP;
Kim Kong Tham, Tsukuba, JP;
Ryousuke Kushibiki, Tsukuba, JP;
Masahiro Aono, Tsukuba, JP;
Yasunobu Watanabe, Tsukuba, JP;
TANAKA KIKINZOKU KOGYO K.K., Tokyo, JP;
Abstract
A CoPt-oxide-based in-plane magnetized film having a magnetic coercive force of 2.00 kOe or more and remanent magnetization per unit area Mrt of 2.00 memu/cmor more. The in-plane magnetized film for use as a hard bias layer of a magnetoresistive element contains metal Co, metal Pt, and an oxide. The in-plane magnetized film contains the metal Co in an amount of 55 at % or more and less than 95 at % and the metal Pt in an amount of more than 5 at % and 45 at % or less relative to a total of metal components of the in-plane magnetized film, and contains the oxide in an amount of 10 vol % or more and 42 vol % or less relative to a whole amount of the in-plane magnetized film. The in-plane magnetized film has a thickness of 20 nm or more and 80 nm or less.