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:
Feb. 24, 2026
Filed:
Oct. 24, 2023
Applicant:
Niterra Materials Co., Ltd., Yokohama, JP;
Inventors:
Hitoshi Aoyama, Yokohama, JP;
Hideaki Baba, Yokohama, JP;
Masanori Mizobe, Yokohama, JP;
Kenji Tomokiyo, Yokohama, JP;
Assignee:
Niterra Materials Co., Ltd., Yokohama, JP;
Primary Examiner:
Int. Cl.
CPC ...
C22C 27/04 (2006.01); B21C 1/00 (2006.01); B22F 5/12 (2006.01); B23H 3/00 (2006.01); G01R 1/067 (2006.01);
U.S. Cl.
CPC ...
C22C 27/04 (2013.01); B21C 1/00 (2013.01); B22F 5/12 (2013.01); B23H 3/00 (2013.01); G01R 1/06755 (2013.01);
Abstract
According to one embodiment, a tungsten wire includes a tungsten alloy containing rhenium. The tungsten wire includes a protrusion peak density (Spd) of 7000 or more and 11000 or less as a surface roughness parameter.