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:
Feb. 10, 2026
Filed:
Feb. 27, 2023
Kabushiki Kaisha Toshiba, Tokyo, JP;
KABUSHIKI KAISHA TOSHIBA, Kawasaki, JP;
Abstract
According to an embodiment, a permanent magnet has a composition represented by a composition formula: RFeMCuCo(where, R is at least one element selected from rare earth elements, M is at least one element selected from Zr, Ti, and Hf, p is a number that satisfies 10.0 at %≤p≤14.5 at %, r is a number that satisfies 1.5 at %<r≤4.2 at %, t is a number that satisfies 0.5 at ≤%≤t 9.0 at %, and q is a number that satisfies 17.0 at %≤q≤26.0 at %); and a metallic structure including a cell phase having a ThZntype crystal phase, a cell wall phase formed so as to partition the ThZntype crystal phase, and a platelet phase formed so as to intersect with a c-axis of the ThZntype crystal phase, in which an average distance between the platelet phases is 10 nm or more and 30 nm or less.