Appeal No. 1997-2917
Application No. 08/351,697
When the dried superconducting materials are sintered at
900EC. for 4 hours, for example, they form porous products.
See column 26, lines 58-60.
Given the fact that Kobayashi recognizes the advantage of
using an alcohol amine, such as monoethanolamine, in a sol-gel
method for producing a superconductor, one of ordinary skill
in the art would have been motivated to employ the alcohol
amine of the type described in Kobayashi in the sol-gel
superconductor producing method described in Yi with a
reasonable expectation of producing a superconductor having
excellent properties.
At the hearing dated October 24, 2000, appellants’
representative asserted that Yi does not teach that its film
contains “micropores of uniform diameter.” In other words,
the gel-sol method described by Yi is not useful for forming a
film containing “micropores of uniform diameter.” In support
of his position, appellants’ representative referred to Yi’s
disclosure regarding the collapsing of pores of a PZT film at
400 to 1200EC. See Yi, page 1177. However, as indicated
supra, the superconductor material of the type described in
both Yi and Kobayashi contains pores even after sintering it
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