Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2007-11-13
2007-11-13
Arbes, Carl J. (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C505S100000, C505S704000
Reexamination Certificate
active
10510349
ABSTRACT:
A method of manufacturing a superconducting wire is provided. The method is provided with the steps of filling a raw material powder in a metal pipe, the raw material powder being composed of an oxide superconductor or a precursor to become an oxide superconductor through heat treatment; heating the metal pipe filled with the above-described raw material powder to 400° C. or more and 800° C. or less; depressurizing the inside of the above-described heated metal pipe to 100 Pa or less; sealing an opening at an end portion of the metal pipe under the above-described depressurized condition; and subjecting the sealed metal pipe containing the above-described raw material powder to wire drawing, wherein the packing density of the above-described raw material powder is controlled at 10 percent or more and 40 percent or less and, thereby, the degasification of the inside of the metal pipe is adequately performed, so that the critical current density can be increased.
REFERENCES:
patent: 3922769 (1975-12-01), Brenan
patent: 5004722 (1991-04-01), Tallman
patent: 5145835 (1992-09-01), Takeshita et al.
patent: 5369088 (1994-11-01), Mukai et al.
patent: 5462920 (1995-10-01), Mukai et al.
patent: 6493925 (2002-12-01), Kaneko et al.
patent: 1 113 508 (2001-07-01), None
patent: 05-234437 (1993-09-01), None
patent: 05-282936 (1993-10-01), None
patent: 06-176635 (1994-06-01), None
patent: 4-06309967 (1994-11-01), None
patent: 06-309967 (1994-11-01), None
patent: 06-309967 (1994-11-01), None
patent: 6-342607 (1994-12-01), None
patent: 06-342607 (1994-12-01), None
patent: 07-105762 (1995-04-01), None
patent: 11-185551 (1999-07-01), None
patent: 2001-184956 (2001-07-01), None
Supplementary European search report regarding EP/03 76 6668 Dec. 22, 2006.
Arbes Carl J.
Foley & Lardner LLP
Sumitomo Electric Industries Ltd.
LandOfFree
Method of manufacturing superconducting wire does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of manufacturing superconducting wire, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing superconducting wire will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3858072