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:
Feb. 12, 2013

Filed:

Dec. 31, 2009
Applicants:

Ryusuke Hasegawa, Morristown, NJ (US);

Daichi Azuma, Myrtle Beach, SC (US);

Inventors:

Ryusuke Hasegawa, Morristown, NJ (US);

Daichi Azuma, Myrtle Beach, SC (US);

Assignees:

Metglas, Inc., Conway, SC (US);

Hitachi Metals, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/153 (2006.01);
U.S. Cl.
CPC ...
Abstract

A magnetic core having an iron-based amorphous alloy that includes: a chemical composition with a formula FeBSiC, where 81.5<a≦84, 12<b<17, 1≦c<5 and 0.3≦d≦1.0, numbers being in atomic percent, with incidental impurities, simultaneously having a value of a saturation magnetic induction equal to or exceeding 1.63 tesla, a Curie temperature greater than or equal to 315° C. and less than or equal to 360° C. and a crystallization temperature greater than or equal to 400° C. and less than or equal to 470° C. The core has low core loss and exciting power and is suited for transformers, electrical chokes, power inductors and pulse generation and compression devices.


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