Appeal No. 2005-0235 5
Application No. 09/969,291
coating...configured in a shape so as to form one portion of a coil and having ends adapted
to attach to other electric conductors with welded joints so as to form a further extended
coil section...” At least one insulation layer of the claimed multilayer insulation-coated
electric conductor “is composed of at least one resin selected from the group consisting of
a polyimide resin, a polyesterimide resin, and an H-class polyester resin.” See claim 1.
The claimed polyimide resin, according to page 7 of the specification, “is not particularly
restricted, and ...can be made of the well-known polyimide resins, such as aromatic
polyimides...”
The appellant acknowledges that a polyamideimide resin insulation-coated electric
conductor “configured in a shape so as to form one portion of a coil and having ends
adapted to attach to other electric conductors with welded joints so as to form a further
extended coil section” is well known. See the specification, pages 2-4. According to the
appellant (specification, pages 1-3), this electric conductor is known to be useful for a
variety of electric machinery and tools, such as motors and generators. However, the
appellant does not admit that this conventional electric conductor employs a plurality of
insulation layers with at least one of the layers being made of “a polyimide resin, a
polyesterimide resin and/or an H-class polyester resin.” See the specification, pages 1-4.
The dispositive question is, therefore, whether one of ordinary skill in the art would
have been motivated to employ a multi-layer insulation with at least one layer being made
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