公开(公告)号：US11761065B2

公开(公告)日：2023-09-19

申请号：US17604859

申请日：2020-04-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomohiro Kanazawa ,  Naoki Kohyama ,  Yoshihiro Iguchi ,  Yui Nakai

IPC: C22C27/04 ,  A61L31/02 ,  A61L31/14 ,  B21C1/02 ,  C22F1/18

CPC classification number: C22C27/04 ,  A61L31/022 ,  A61L31/14 ,  B21C1/02 ,  C22F1/18 ,  Y10T428/12431

Abstract: A tungsten wire is a tungsten wire containing tungsten or a tungsten alloy, a diameter of the tungsten wire is at most 100 μm, and a total number of torsional rotations to breakage per length of 50 mm of the tungsten wire is greater than or equal to 250×exp(−0.026×D) when a tension that is 50% of a breakage tension of the tungsten wire is applied as a load, D denoting the diameter of the tungsten wire.