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公开(公告)号：US20220098708A1
公开(公告)日：2022-03-31
申请号：US17414442
申请日：2019-11-18
Inventor： Tomohiro KANAZAWA , Yoshihiro IGUCHI , Naoki KOHYAMA , Atsushi SHIMADA , Kenshi TSUJI , Yui NAKAI
Abstract: A tungsten wire contains tungsten or a tungsten alloy. An average width of surface crystal grains in a direction perpendicular to an axis of the tungsten wire is at most 76 nm. The tungsten wire has a tensile of at least 4800 MPa, and a diameter of at most 100 μm.
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公开(公告)号：US20200070583A1
公开(公告)日：2020-03-05
申请号：US16549048
申请日：2019-08-23
Inventor： Tetsuji SHIBATA , Tomoya IWAHASHI , Tomohiro KANAZAWA
Abstract: A tungsten wire according one aspect of the present disclosure includes: a metal wire containing one of tungsten and a tungsten alloy; and a plating layer which covers a surface of the metal wire. The plating layer contains copper.
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公开(公告)号：US20180281231A1
公开(公告)日：2018-10-04
申请号：US15905376
申请日：2018-02-26
Inventor： Tomohiro KANAZAWA , Tetsuji SHIBATA , Kazushige SUGITA , Hiroshi GOUDA , Naoki KOHYAMA
Abstract: A saw wire includes a metal wire containing rhenium-tungsten alloy. A rhenium content of the metal wire is at least 0.1 wt % and at most 10 wt % with respect to a total weight of rhenium and tungsten, an elastic modulus of the metal wire is at least 350 GPa and at most 450 GPa, a tensile strength of the metal wire is at least 3500 MPa, and a diameter of the metal wire is at most 60 μm.
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公开(公告)号：US20180135211A1
公开(公告)日：2018-05-17
申请号：US15808264
申请日：2017-11-09
Inventor： Tsuyoshi TERADA , Kazushige SUGITA , Tomohiro KANAZAWA , Daichi IKEUCHI
Abstract: A hybrid fiber which includes: a metal wire having a roughened surface; and a fiber is provided. In the hybrid fiber, the metal wire and the fiber are combined.
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5.发明公开公开(公告)号：US20240261880A1
公开(公告)日：2024-08-08
申请号：US18564079
申请日：2022-05-31
Inventor： Tomohiro KANAZAWA , Kenshi TSUJI , Naoki KOHYAMA
CPC classification number: B23D65/00 , B23D61/185 , B23D81/00
Abstract: An electrodeposited wire for a saw wire includes a core wire containing tungsten or a tungsten alloy. The electrodeposited wire for a saw wire has a tensile strength of at least 4800 MPa. The electrodeposited wire for a saw wire has a straightness of at least 400 mm per 500 mm in length.
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Patent Agency Ranking
公开(公告)号：US20240131836A1
公开(公告)日：2024-04-25
申请号：US18279061
申请日：2021-12-21
Inventor： Tomohiro KANAZAWA , Kazuhiro DAIJO , Kenshi TSUJI , Naoki KOHYAMA , Yui NAKAI
IPC: B41F15/34 , B41N1/04 , B41N1/24 , C22C27/04 , C22F1/18 , D03D1/00 , D03D9/00 , D03D15/33 , D03D15/67
CPC classification number: B41F15/34 , B41N1/04 , B41N1/247 , C22C27/04 , C22F1/18 , D03D1/00 , D03D9/00 , D03D15/33 , D03D15/67 , D10B2505/00
Abstract: A metal wire includes tungsten or a tungsten alloy. The metal wire has a diameter of at most 13 μm, a tensile strength of at least 4.8 GPa, and a natural hanging length per 1000 mm of at least 800 mm.
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公开(公告)号：US20230002867A1
公开(公告)日：2023-01-05
申请号：US17781617
申请日：2020-12-04
Inventor： Akitoshi KASAHARA , Naoki KOHYAMA , Tomohiro KANAZAWA , Kenshi TSUJI , Yoshiyuki KITA , Atsushi SHIMADA , Yuuki SASAGAWA
IPC: C22C27/04
Abstract: A metal wire, which is one of a tungsten wire and a tungsten alloy wire, includes alkali metal on the surface thereof. The amount of alkali metal is at most 2.0 μg per 1 g of the metal wire.
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公开(公告)号：US20220220591A1
公开(公告)日：2022-07-14
申请号：US17604859
申请日：2020-04-13
Inventor： Tomohiro KANAZAWA , Naoki KOHYAMA , Yoshihiro IGUCHI , Yui NAKAI
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 (10) 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.
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公开(公告)号：US20190232404A1
公开(公告)日：2019-08-01
申请号：US16256636
申请日：2019-01-24
Inventor： Tomohiro KANAZAWA , Naoki KOHYAMA , Yoshihiro IGUCHI , Yuuki SASAGAWA , Tetsuji SHIBATA , Toshiyuki TANI
CPC classification number: B23D61/185 , B23D57/0007 , B24B27/0633 , B28D5/045 , C22C38/12 , C25D15/02
Abstract: A metal wire containing tungsten is provided. A tungsten content of the metal wire is at least 90 wt %. A tensile strength of the metal wire is at least 4000 MPa. An elastic modulus of the metal wire is at least 350 GPa and at most 450 GPa. A diameter of the metal wire is at most 60 μm. An average crystal grain size of the metal wire in a cross-section orthogonal to an axis of the metal wire is at most 0.20 μm.
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公开(公告)号：US20240227384A9
公开(公告)日：2024-07-11
申请号：US18279061
申请日：2021-12-21
Inventor： Tomohiro KANAZAWA , Kazuhiro DAIJO , Kenshi TSUJI , Naoki KOHYAMA , Yui NAKAI
IPC: B41F15/34 , B41N1/04 , B41N1/24 , C22C27/04 , C22F1/18 , D03D1/00 , D03D9/00 , D03D15/33 , D03D15/67
CPC classification number: B41F15/34 , B41N1/04 , B41N1/247 , C22C27/04 , C22F1/18 , D03D1/00 , D03D9/00 , D03D15/33 , D03D15/67 , D10B2505/00
Abstract: A metal wire includes tungsten or a tungsten alloy. The metal wire has a diameter of at most 13 μm, a tensile strength of at least 4.8 GPa, and a natural hanging length per 1000 mm of at least 800 mm.
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