Appeal No. 95-1987
Application 08/076,475
of a "large dielectric loss factor" for any rubber composition
described in the reference, one of ordinary skill in the art
would have understood that "theoretically," the rubber
compound should preferably possess a dielectric loss factor of
at least 0.20 to permit the use of "high frequency dielectric
heating at frequencies less than 100 MHZ." Again, see
appellants' admissions in the specification at page 9, lines
34-38, wherein preferred values were apparently calculated
based on the well-known heating rate equation.
We recognize that Itoh does not expressly report a
value or define what is meant by the expression "high
frequency" dielectric heating. However, we believe this
disclosure would have been understood by a person of ordinary
skill in the art to be a reference to a frequency range of 2-
90 MHZ, the frequency range disclosed by McGraw-Hill as a
"high frequency" for conventional dielectric heating
techniques.
Although Itoh does not expressly describe the
relationship between the dielectric loss factor of the rubber
material being molded and the frequency range claimed by
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