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US-2024269745-A1 · Aug 15, 2024 · US
Rhenium-tungsten alloy wire, method of manufacturing same, and medical needle
US2025019805A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025019805-A1 |
| Application number | US-202418902266-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 30, 2024 |
| Priority date | Mar 30, 2022 |
| Publication date | Jan 16, 2025 |
| Grant date | — |
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Abstract
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According to one embodiment, a rhenium-tungsten alloy wire which is a wire including a tungsten alloy containing rhenium. A ratio W/Re of an atomic concentration (atm %) of tungsten (W) to an atomic concentration (atm %) of rhenium (Re) according to XPS analysis is 2.5 or more in an arbitrary measurement area of a unit area having a diameter of 50 μm at a wire surface. A medical needle according to the embodiment includes the rhenium-tungsten alloy wire according to the embodiment.
First claim
Opening claim text (preview).
What is claimed is: 1 . A rhenium-tungsten alloy wire which is a wire comprising a tungsten alloy containing rhenium, wherein a ratio W/Re of an atomic concentration (atm %) of tungsten (W) to an atomic concentration (atm %) of rhenium (Re) according to XPS analysis is 2.5 or more in an arbitrary measurement area of a unit area having a diameter of 50 μm at a wire surface. 2 . The rhenium-tungsten alloy wire according to claim 1 , wherein a rhenium content is 2 wt % or more and less than 30 wt %. 3 . The rhenium-tungsten alloy wire according to claim 1 , wherein the rhenium content is 10 wt % or more and 28 wt % or less. 4 . The rhenium-tungsten alloy wire according to claim 1 , wherein a potassium (K) content is 30 wtppm or more and 90 wtppm or less. 5 . The rhenium-tungsten alloy wire according to claim 1 , which has a diameter of 0.1 mm or more and 1.00 mm or less. 6 . The rhenium-tungsten alloy wire according to claim 1 , which is used for a wire material of a medical needle. 7 . A method of manufacturing the rhenium-tungsten alloy wire according to claim 1 . 8 . A medical needle comprising the rhenium-tungsten alloy wire according to claim 1 .
Assignees
Inventors
Classifications
High-melting or refractory metals or alloys based thereon · CPC title
- C22C27/04Primary
Alloys based on tungsten or molybdenum · CPC title
of refractory metals · CPC title
characterised by a mixture of particles of different sizes or by the particle size distribution · CPC title
Alloys based on refractory metals · CPC title
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- What does patent US2025019805A1 cover?
- According to one embodiment, a rhenium-tungsten alloy wire which is a wire including a tungsten alloy containing rhenium. A ratio W/Re of an atomic concentration (atm %) of tungsten (W) to an atomic concentration (atm %) of rhenium (Re) according to XPS analysis is 2.5 or more in an arbitrary measurement area of a unit area having a diameter of 50 μm at a wire surface. A medical needle accordin…
- Who is the assignee on this patent?
- Toshiba Kk, Toshiba Materials Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C22C27/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jan 16 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).