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:
Jan. 31, 2006
Filed:
Jan. 25, 2005
Seigo Tokoro, Tokyo, JP;
Teruo Mori, Tokyo, JP;
Seigo Tokoro, Tokyo, JP;
Teruo Mori, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
To provide a method for producing a magnetostrictive material of excellent magnetostrictive characteristics. The method for producing a magnetostrictive material, wherein a mixture composed of Starting Materials A, B and C is sintered, where A is represented by Formula 1 (TbDy)T(T is at least one metallic element selected from the group consisting of Fe, Ni and Co, 0.35<x≦0.50 and 1.70≦y≦2.00), B is represented by Formula 2 DyT(0.37≦t≦1.00), and C contains T, to produce a magnetostrictive material represented by Formula 3 (TbDy)T(0.27≦v<0.50, and 1.70≦w≦2.00), wherein oxygen content is set at 500 to 3,000 ppm for Starting Material A and at 2,000 to 7,000 ppm for Starting Material B.