Appeal No. 1999-0863
Application 08/674,727
coupling type resonator." Claim 21 contains an almost
identical limitation, except that "generate" is "generates."
The Examiner finds (FR6): "Given that the entire claimed
structure is shown by the Takema invention, the device thus
inherently meets the goals of the invention also described in
the claims." Although not expressly stated, it is apparently
also the Examiner's position that the functional limitations
of claims 20 and 21 are inherent in Ehata.
Appellant notes that a claimed feature which is said to
be inherent must necessarily flow from the teachings of
reference. It is argued that Takema does not inherently teach
or suggest the limitations. This same argument would apply to
Ehata.
There is absolutely no indication that the functional
characteristics of claims 20 and 21 are inherent in Ehata or
Takema. The operational characteristics of surface acoustic
wave filters depend on the selection of IDT pairs, the
longitudinal mutual interval between the IDT electrodes, and
the longitudinal distance between the IDT and the reflector,
among other factors, and there is no indication in Ehata or
Takema that these structural features have been selected to
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