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US3665595A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of manufacturing superconductive materials

Assignee: Tohoku University
•
Filing: 1969-10-27
•
Granted: 1972-05-30
•
Expires: 1989-10-27
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Abstract

Abstract Superconductive materials are manufactured by providing a laminated material by combining a material of Nb, V or Mo metal, or alloy or intermetallic compound thereof and a material of Sn, Al, Zr, Ti, Pb, Ge, V, Si, Ga, C or Au element or alloy thereof, winding the laminated material tightly into a coil, covering the coiled body with a shielding layer composed of Nb, Ta or Zr metal or alloy thereof or stainless steel, inserting the coil covered with the shielding layer into a sheath composed of Cu, Al, Ag, Au or Cd metal, or alloy or intermetallic compound thereof or stainless steel, subjecting said sheath enclosing said coil and said shielding layer to a treatment for reducing a crosssectional area of said coil and heat-treating thus treated coil. The laminated material may be inserted into the sheath together with a mechanically reinforcing material in order to improve the strength of the resulting superconductive materials.

Inventors

  • 👤 Eihachiro Tanaka
  • 👤 Yutaka Onodera
  • 👤 Takeji Fukuda
  • 👤 Tsutomu Yamashita
  • 👤 Tetsuo Saito
  • 👤 Shoji Kumia

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 00:40
CPC Classifications
H; H01; H01F; H01F6/00; H01F6/06; H10; H10N; H10N60/00; H10N60/01; H10N60/0184; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/917; Y10S505/918; Y10S505/919; Y10S505/92; Y10S505/921; Y10S505/924; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 32 words
The method as claimed in claim 1, wherein said laminated material is produced by laminating a sheet or foil of said material (A) and a sheet or foil of said material (B).
Claim 2
Dependent Claim 39 words
The method as claimed in claim 1, wherein said laminated material is produced by rolling a sheet or foil of said material (A) and a sheet or foil of said material (B) to form a composite sheet or foil.
Claim 3
Dependent Claim 48 words
The method as claimed in claim 1, wherein said laminated material is produced by evaporating, sputtering or plating Sn, Al, Si, Ga, Ge, C or Au on a sheet of said material (A) to coat said material (A) sheet with Sn, Al, Si, Ga, Ge, C or Au.
Claim 4
Dependent Claim 25 words
The method as claimed in claim 1, wherein said treatment for reducing the cross-sectional area of said coil is a rolling, extruding or drawing treatment.
Claim 5
Dependent Claim 31 words
A method as claimed in claim 1 further including providing mechanical reinforcing material disposed on the coiled body, said shielding layer covering said coiled body together with said mechanical reinforcing material.

References Cited (Backward Citations)

US3218693A Cited
US3258828A Cited
US3243871A Cited
US3473217A Cited
US3465430A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-05-30 1975-11-29 1976-05-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-05-30 1979-11-29 1980-05-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-05-30 1983-11-29 1984-05-30 $7700.00 Window Closed / Lapsed

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