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.:

US 7297213 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 20, 2007

Filed:

Dec. 24, 2003
Applicants:

Hirokazu Kanekiyo, Kyoto, JP;

Toshio Miyoshi, Ibaraki, JP;

Satoshi Hirosawa, Otsu, JP;

Yasutaka Shigemoto, Ibaraki, JP;

Yusuke Shioya, Ibaraki, JP;

Inventors:

Hirokazu Kanekiyo, Kyoto, JP;

Toshio Miyoshi, Ibaraki, JP;

Satoshi Hirosawa, Otsu, JP;

Yasutaka Shigemoto, Ibaraki, JP;

Yusuke Shioya, Ibaraki, JP;

Assignee:

Neomax Co., Ltd., Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/057 (2006.01); H01F 1/058 (2006.01);
U.S. Cl.
CPC ...
Abstract

An iron-based rare earth alloy magnet has a composition represented by the general formula: (FeT)QRM, where T is at least one element selected from the group consisting of Co and Ni; Q is at least one element selected from the group consisting of B and C; R is at least one rare earth element substantially excluding La and Ce; and M is at least one metal element selected from the group consisting of Ti, Zr and Hf and always includes Ti. In this formula, the mole fractions x, y, z and m meet the inequalities of: 10 at %<x≦20 at %; 6 at %≦y<10 at %; 0.1 at %≦z≦12 at %; and 0≦m≦0.5, respectively.


Find Patent Forward Citations

Kanekiyo, Hirokazu. (2007). Permanent magnet including multiple ferromagnetic phases and method for producing the magnet (U.S. Patent No. 7297213). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7297213

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