Appeal 2007-0904
Application 11/025,331
(3) Have Appellants shown that the Examiner failed to establish that one of
ordinary skill in the art, at the time of the present invention, would have
found that the combined disclosures of Okushima with Xu and Cook
render the claimed invention unpatentable under 35 U.S.C. § 103(a)?
FINDINGS OF FACT
The following findings of fact are supported by a preponderance of the
evidence.
The Invention
1. Appellants invented an alternating current inverter2 (12) to power a
plurality of electric motors (16). (Specification 5.)
2. As depicted in Figure 2, the inverter (12) has a housing (18)
connected with a direct current source (14). (Id.)
3. The housing (18) includes a transistor power module (40) having two
separate and independently drivable power stages for driving the electric
motors (16). (Id. 6.)
The Prior Art Relied Upon
4. As depicted in Figure 4, Katagiri teaches a wiring circuit using a
biaxial inverter unit (6) for controlling a plurality of servo motors (M1, M2)
using a plurality of inverters (52, 56). (Abstract, col. 6, ll. 24-27.)
5. Katagiri teaches that the inverter unit (6) has a housing, which
includes two inverters3 (52, 56), dead time forming sections (51, 55), a
2 Battery powered inverters are electronic devices that convert the battery’s
direct current energy into three phase alternating current energy of an
adjustable voltage level to create the desired performance of an electrical
motor. (Specification 1.)
3 Katagiri indicates that inverters (52, 56) include power devices such as
power transistors. (Col. 5, ll. 11-12.) Further, Katagiri indicates that the
5
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Last modified: September 9, 2013