Appeal No. 1997-2958 7
Application No. 08/401,719
those claimed. As seen from the table below the overlap is quite substantial. As pointed out by the
examiner in the First Office Action, Komatsubara also discloses specific examples of alloys having
compositions within the claimed ranges. See, for instance, Komatsubara, table 1, alloy 2, also included
in the following table.
Comparison of claimed composition and Komatsubara
Claimed element claimed range wt % Komatsubara ranges Komatsubara
alloy no. 2
Mg 2.0-8.0 2.0-8.0 4.2
Be 0.0001 to 0.01 0.0001-0.01 0.0011
at least one of:
Mn 0.3 to 2.5 0.3-1.5 0.62
Cr 0.1 to 0.5 0.05-0.3 (optional) --
Zr 0.1 to 0.5 0.05-0.3 (optional) --
V 0.1 to 0.5 0.05-0.3 (optional) --
Fe 0-0.2 0-0.2 0.07
Si 0-0.2 0-0.1 0.07
Na 0-3 ppm silent except to say
other incidental
impurities are present
Ca 0-5 ppm silent except to say
other incidental
impurities are present
a remainder of Al and a remainder of Al and
inevitable impurities inevitable impurities
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