Appeal No. 96-1530
Application No. 07/767,488
Claim 8 is representative of the subject matter on appeal
and reads as follows:
8. A method of manufacturing a superconducting oxide wire,
comprising the steps of:
preparing a pipe made of a metal extending in the
direction of a longitudinal axis thereof;
providing a superconducting oxide powder material which
contains superconducting oxide particles having a grain size
of about 10 to 60 Fm and having a perovskite crystal structure
having a C face and a C axis and which contains more than 50
vol% of plate-shaped particles of which a length in the
direction of the C face is greater than another length in the
direction of the C axis;
filling said pipe with said superconducting oxide
material thereby preparing a composite conductive body;
forming said composite conductive body into a wire by
subjecting said composite conductive body to at least wire
forming working in the direction of the longitudinal axis so
that the C faces of most of the plateshaped particles are
directed toward the longitudinal axis of the pipe; and
subjecting the thus formed composite conductive body to heat
treatment thereby sintering the superconducting oxide powder
material.
The references of record relied upon by the examiner are:
Jin et al. (Jin) 4,952,554 Aug. 28,
1990
Takekawa et al., Japanese Journal of Applied Physics, Vol. 26,
No. 5, May 1987, pp. L851-L853 (hereinafter referred to as
“Takekawa”).
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