Appeal No. 2003-0176
Application 08/909,590
from the first end of the laminate toward but not to the second
end (col. 5, lines 55-65; figures 4-8). Tabota’s laminate has
only two piezoelectric layers (43, 44).
The examiner relies upon Kondou (col. 4, lines 18-30) for a
disclosure of benefits of multiple piezoelectric layers including
providing, for the same thickness, 1) greater force and 2) the
same movement at a lower voltage (answer, page 3). Even if
Tabota’s laminate had more than two piezoelectric layers,
however, the electrodes would not be provided respectively and
alternately at each interface between the piezoelectric layers.
The reason is that Tabota would have, at an interface between the
interfaces at which the two electrodes would be positioned, an
intermediate electrode (47) which does not extend to either end
of the laminate (col. 5, line 65 - col. 6, line 2; figures 4-8).
For a suggestion to eliminate Tabota’s intermediate
electrode the examiner relies upon Harnden or Koal. Without
citing any particular portions of these references the examiner
argues (answer, page 3): “Each of Harnden and Koal teach that
polarizing only the active area of a piezoelectric elements [sic]
reduces mounting stress stray signals and provides a place to
attach lead wires.”
4
Page: Previous 1 2 3 4 5 6 7 8 Next
Last modified: November 3, 2007