Appeal No. 97-3717 Page 8
Application No. 08/397,163
The test for obviousness is what the combined teachings
of the references would have suggested to one of ordinary
skill in the art. See In re Young, 927 F.2d 588, 591, 18
USPQ2d 1089, 1091 (Fed. Cir. 1991) and In re Keller, 642 F.2d
413, 425, 208 USPQ 871, 881 (CCPA 1981).
Terakado discloses an electromagnetic type fuel injection
valve. According to one aspect of his invention (column 2,
lines 25-28), the armature, the rod, and the valve body at the
end of the rod are integrally formed from the same material.
As shown in Figure 1, the electromagnetic type fuel injection
valve 10 comprises a stator iron core 1, an electromagnetic
coil 2 surrounding this stator iron core, a plastic insulating
member 3
molded around this electromagnetic coil and surrounding the
stator iron core, a casing 4 made of a magnetic material, a
valve guide 5 supported at the bottom of this casing, a moving
body 6 whose armature 6a faces the lower end of the stator
iron core, a stopper 7 in the form of a split washer and
retained between a step section of the casing and the valve
guide, a nozzle 8 supported at the bottom of the valve guide,
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