Appeal No. 2002-1059
Application No. 09/051,933
from 1.2 to 1.40 g/cc, and (3) an average particle size of 15 to
25 µm.
It is here appropriate to stress the breadth of Takami’s
disclosure regarding each of these features. In particular,
patentee discloses that his negative electrode may be
manufactured from an extremely wide variety of carbonaceous
materials (e.g., see the disclosure spanning columns 6 through
10) and that the carbonaceous material may be in the form of
either fibers or particles (e.g., see lines 15-19 in column 10)
and that the aforementioned particles may have an average
particle size of 1 to 80 µm (e.g., see lines 20-21 in column 10).
In addition, patentee’s only disclosure concerning the density of
his negative electrode relates to bulk density (i.e., the
combined densities of Takami’s carbonaceous material and binder)
in contrast to the here claimed filling density (i.e., of the
particulate carbon material only) and constitutes a broad range
from 1.35 to 1.80 g/cm3 in contrast to the 1.2 to 1.40 g/cc
filling density range claimed by the appellants (e.g., see lines
25-28 in column 18 of the patent). We perceive nothing, and the
examiner points to nothing, in the Takami reference which would
have suggested precisely selecting from the very broad disclosure
of this reference the feature of artificial graphite as the
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