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:
Jun. 16, 2026
Filed:
Nov. 15, 2022
A.l.m.t. Corp., Tokyo, JP;
A.L.M.T. Corp., Tokyo, JP;
Abstract
There is provided an irregularly-shaped diamond die for producing an irregularly-shaped wire, wherein a processing hole is provided, the processing hole having a reduction portion and a bearing portion in this order from an upstream side in a wire drawing direction, a corner portion having a curved shape and a non-corner portion located at a position different from a position of the corner portion are provided in a cross section of the bearing portion perpendicular to the wire drawing direction, and a surface roughness of the corner portion is greater than a surface roughness of the non-corner portion. The surface roughness Sa of the corner portion is equal to or less than 0.30 μm and the surface roughness Sa of the non-corner portion is equal to or less than 0.20 μm.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile