Appeal No. 95-0347
Application 08/056,681
of characteristic features directed to the thyristor as if it
were description for a transistor component in a functionally
equivalent circuit to the thyristor. Figure 3 of Muraoka shows
another equivalent circuit to a thyristor. Similarly, the
examiner has set forth no basis to regard description for the
gate of the thyristor as if it is for the gate of a transistor
component in an equivalent circuit. To assume that to be the
case is highly speculative and without adequate basis on this
record.
The examiner states (answer at 4) that Muraoka’s Figure 9
[10] shows gate regions between source and drain regions and
channel regions next to the gate regions, which are typical of
field effect transistor structure. However, in Muraoka the
cited regions are not connected for operation as a field effect
transistor. They are only a portion of the disclosed thyristor
and do not have independent significance in the Muraoka
disclosure as an operative field effect transistor, while the
appellants specifically claim a field effect transistor. This
difference alone is sufficient to undermine a rejection for
anticipation.
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