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:
Mar. 10, 2015
Filed:
Aug. 31, 2010
Yuichi Ogawa, Myrtle Beach, SC (US);
Eric A. Theisen, Myrtle Beach, SC (US);
Yuji Matsumoto, Tottori, JP;
James Perrozi, Myrtle Beach, SC (US);
Ryusuke Hasegawa, Morristown, NJ (US);
Yuichi Ogawa, Myrtle Beach, SC (US);
Eric A. Theisen, Myrtle Beach, SC (US);
Yuji Matsumoto, Tottori, JP;
James Perrozi, Myrtle Beach, SC (US);
Ryusuke Hasegawa, Morristown, NJ (US);
Metglas, Inc., Conway, SC (US);
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
A ferromagnetic amorphous alloy ribbon includes an alloy having a composition represented by FeSiBCwhere 80.5≦a≦83 at. %, 0.5≦b≦6 at. %, 12≦c≦16.5 at. %, 0.01≦d≦1 at. % with a+b+c+d=100 and incidental impurities, the defect length along a direction of the ribbon's length being between 5 mm and 200 mm, the defect depth being less than 0.4×t μm and the defect occurrence frequency being less than 0.05×w times within 1.5 m of ribbon length, where t and w are ribbon thickness and ribbon width, respectively, and the ribbon in its annealed state and straight strip form of the ribbon, has a saturation magnetic induction exceeding 1.60 T, and exhibits a magnetic core loss of less than 0.14 W/kg when measured at 60 Hz and at 1.3 T induction level. The ribbon is suitable for use in transformer cores, rotational machines, electrical chokes, magnetic sensors and pulse power devices.