Appeal No. 2000-1347
Application No. 08/740,283
roller include a pair of power supply rings 7, a first
insulating layer 21, a resistive heat-generating layer 22, a
second insulating layer 23 and a surface layer 24. As shown
in Figure 10, these thermal components are arranged on the
support cylinder such that portions of the first and second
insulating layers are disposed between each power supply ring
7 and the neighboring bushing/bearing assembly 5, 6. Kogure
teaches that each of the insulating layers 21 and 23 has a
thickness of about 1 mm and that the resistive heat-generating
layer 22 has a thickness at the center of the roller of about
100 to 150 Fm (.1 to .15 mm) and a thickness at the ends of
the roller which is reduced relative to the center thickness
by about 20% or less (see column 6, lines 26 through 44; and
column 8, lines 40 through 44).
Anticipation is established only when a single prior art
reference discloses, expressly or under principles of
inherency, each and every element of a claimed invention. RCA
Corp. v. Applied Digital Data Sys., Inc., 730 F.2d 1440, 1444,
221 USPQ 385, 388 (Fed. Cir. 1984).
As indicated above, independent claim 1 recites a fixing
device wherein the distance L3 from the inner end of a carrier
5
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