公开(公告)号：US20230227951A1

公开(公告)日：2023-07-20

申请号：US17925071

申请日：2021-05-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomohiro KANAZAWA ,  Naoki KOHYAMA ,  Kenshi TSUJI ,  Yoshihiro IGUCHI ,  Yui NAKAI ,  Tetsuya NAKAAZE

IPC: C22C27/04 ,  C22C1/04 ,  C22F1/18

CPC classification number: C22C27/04 ,  C22C1/045 ,  C22F1/18 ,  C25F3/26

Abstract: A tungsten wire that contains tungsten or a tungsten alloy is provided. An average width of surface crystal grains in a direction perpendicular to an axis of the tungsten wire is at most 98 nm. The tungsten wire has a tensile strength of at least 3900 MPa. The tungsten wire has a diameter of at least 100 μm and at most 225 μm.

公开(公告)号：US20180326519A1

公开(公告)日：2018-11-15

申请号：US15975183

申请日：2018-05-09

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Tomohiro KANAZAWA ,  Masato WADA ,  Takayuki IMAI ,  Tetsuji SHIBATA ,  Kazushige SUGITA ,  Naoki KOHYAMA ,  Hiroshi GOUDA ,  Yoshitaka MIZUGUCHI

IPC: B23D61/18 ,  B21C1/00

CPC classification number: B23D61/185 ,  B21C1/003 ,  B21C3/025 ,  C22C27/04

Abstract: A saw wire and various methods of use and manufacture are provided. The saw wire includes a metal wire containing at least one of tungsten and a tungsten alloy. A surface roughness Ra of the metal wire is at most 0.15 μm. A tensile strength of the metal wire is at least 3500 MPa. A diameter of the metal wire is at most 60 μm.

公开(公告)号：US20180326518A1

公开(公告)日：2018-11-15

申请号：US15975140

申请日：2018-05-09

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Tomohiro KANAZAWA ,  Masato WADA ,  Takayuki IMAI ,  Tetsuji SHIBATA ,  Kazushige SUGITA ,  Naoki KOHYAMA ,  Hiroshi GOUDA ,  Yoshitaka MIZUGUCHI

IPC: B23D61/18 ,  B21C1/00

CPC classification number: B23D61/185 ,  B21C1/003 ,  B21C3/025 ,  C22C27/04

Abstract: A saw wire and various methods of use and manufacture are provided. The saw wire includes a metal wire containing one of tungsten and a tungsten alloy. A surface roughness Ra of the metal wire is at most 0.15 μm. A diameter of the metal wire is at most 60 μm.