Appeal No. 95-2898
Application 08/053,193
center hole (See Figure 7 and column 5, lines 47-53) and center
core (See Figure 5) having all of the limitations as recited in
Appellants’ claim 1 except for "claws formed in said wall portion
which project from said outside peripheral surface of said
cylindrical wall and which engage an upper surface of said
optical disc so as to clamp said optical disk between said
stopper ledge and said claws." In particular, we find that
Kikuchi teaches a center core, shown as a hub 50 in Figure 5,
which fits into said center hole of said optical disk. We
find that Kikuchi teaches a center core having a bottom disk-
portion (the portion of flange 52 that supports boss 51 shown in
Figure 5) a cylindrical wall (shown as outer wall 55 in Figure 5)
extending from the bottom disk-portion and a stopper ledge (shown
as the portion of flange 52 that does not support boss 51 in
Figure 5) projecting outwardly from an outside peripheral surface
of said cylindrical wall and abutting on a lower surface of the
optical disk as set forth in Appellants' claim 1. Furthermore,
we find that Kikuchi teaches in Figure 5 and column 5, lines 26
and 27, a plurality of slits 59 formed in the cylindrical wall as
recited in Appellants’ claim 1.
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