Appeal No. 1996-1626
Application No. 07/642,848
and an organic fluorescent coloring material, patentably distinguishes over the reference. (See Brief,
pages 6-9.)
We agree with appellants that the reference does not disclose or suggest an optical disk body
having an organic fluorescent coloring material. EPO ‘512 discloses, in Figure 8, an optical disk with a
transparent substrate formed of a molded resin. Page 2, lines 32-33 states that the resin molded body
of the invention can be used for “optical parts,” including the “transparent substrate of an optical disk.”
On page 3, line 26 through page 4, line 49 the reference describes a “first embodiment.” The
embodiment includes adding an organic fluorescent dye to a resin molded body “constituting the core of
an optical fiber,” and with the addition of the dye “it becomes possible to make light incident from the
side face of the optical fiber.” EPO ‘512, page 4, lines 5-9 and Figure 3. The reference then states
that “an organic fluorescent dye as mentioned above can be added to the cladding material according to
need” (page 4, lines 48-49).
A second application of the fluorescent dye is described on page 4, lines 50-57 and depicted in
Figures 7a and 7b. A display is comprised of a light source 4 and a resin molded body containing an
organic fluorescent dye 5 “absorbing light from the light source 4 and isotropically transmitting the light.”
Thus, the fluorescent dye is taught as advantageous for the optical fiber of the reference, and for
use in a lighted display, with no mention of any indication for use in the substrate of an optical disk.
Claims 1 and 8-10 of the publication are consistent with our interpretation of the detailed description;
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