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:
May. 07, 2024
Filed:
Feb. 13, 2020
Applicant:
Proterial, Ltd., Tokyo, JP;
Inventor:
Motoki Ohta, Tokyo, JP;
Assignee:
PROTERIAL, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 28/26 (2006.01); C22C 45/02 (2006.01); H01F 1/153 (2006.01); H01F 41/02 (2006.01);
U.S. Cl.
CPC ...
B21D 28/26 (2013.01); C22C 45/02 (2013.01); H01F 1/153 (2013.01); H01F 41/02 (2013.01); C22C 2202/02 (2013.01);
Abstract
A punching method with a favorable punchability with respect to amorphous metal thin ribbons, an amorphous metal thin strip produced by the method, and a laminated core, are provided. The amorphous metal thin strip has a thickness of from more than 30 μm to 50 μm, and a side configured by a punched surface on which at least a shear droop, a shearing surface, and a fractured surface are observed, the width of the shear droop relative to the thickness of the metal thin strip being 30% or less at the side.