Appeal No. 1997-0523
Application 08/082,576
that the “motivation to combine the teachings of Yang and
Sugawara comes from the negative teachings of Yang about the
compounds used in that invention, plus the positive teachings
of Sugawara about the use of the compound Y SiO :Tb in
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phosphors which have application in the field of high current
density beam cathode ray tubes” [answer, page 9]. We
disagree. There is no bridge to combine Yang and Sugawara.
Neither reference discloses the replacement, or addition, of a
component in the disclosed mixtures from one reference to the
other. The Examiner is indulging in speculation in first
adding Y SiO :Tb from Sugawara to the mixtures disclosed by
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Yang, and furthermore in adjusting the weight percent of each
component to achieve the claimed mixture compositions.
Therefore, we do not sustain the obviousness rejection of
claims 1 to 8 over Yang and Sugawara.
Claims 9 to 14
These claims depend on the independent claims (1, 3, and
5 to 8) discussed above. Therefore, for the same rationale as
above, these claims define over the combination of Yang and
Sugawara. In addition, we address the assertion by the
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