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.

Date of Patent:
Oct. 07, 2014

Filed:

Jul. 15, 2013
Applicant:

Alps Green Devices Co., Ltd., Tokyo, JP;

Inventors:

Keiko Tsuchiya, Niigata-ken, JP;

Jun Okamoto, Niigata-ken, JP;

Hisato Koshiba, Niigata-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/24 (2006.01); H01F 27/02 (2006.01); H01F 5/00 (2006.01); H01F 1/00 (2006.01); B22F 1/00 (2006.01); H01F 41/02 (2006.01); C22C 38/00 (2006.01); H01F 1/153 (2006.01); C22C 45/02 (2006.01); H01F 27/255 (2006.01); C22C 33/02 (2006.01);
U.S. Cl.
CPC ...
H01F 27/255 (2013.01); B22F 1/0003 (2013.01); H01F 41/0246 (2013.01); C22C 38/00 (2013.01); H01F 1/15308 (2013.01); C22C 45/02 (2013.01); C22C 33/0257 (2013.01);
Abstract

An Fe-based amorphous alloy powder of the present invention has a composition represented by (FeNiSnCrPCBSi)M. In this composition, 0 at %≦a≦10 at %, 0 at %≦b≦3 at %, 0 at %≦c≦6 at %, 6.8 at %≦x≦10.8 at %, 2.2 at %≦y≦9.8 at %, 0 at %≦z≦4.2 at %, and 0 at %≦t≦3.9 at % hold, a metal element M is at least one selected from the group consisting of Ti, Al, Mn, Zr, Hf, V, Nb, Ta, Mo, and W, and the addition amount α of the metal element M satisfies 0.04 wt %≦α≦0.6 wt %. Accordingly, besides a decrease of a glass transition temperature (Tg), an excellent corrosion resistance and high magnetic characteristics can be obtained.


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