Ex parte AMANO et al. - Page 1
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The opinion in support of the decision being entered today was not
written for publication and is not binding
precedent of the Board.
Paper No. 29
UNITED STATES PATENT AND TRADEMARK OFFICE
____________
BEFORE THE BOARD OF PATENT APPEALS
AND INTERFERENCES
____________
Ex parte TOSHIO AMANO, HISAYOSHI FUJIMOTO, YASUSHI EMA,
YASUHISA FUJII, and NOBUHISA ISHIDA
____________
Appeal No. 1999-1560
Application No. 08/974,108
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HEARD: May 23, 2001
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Before HAIRSTON, GROSS, and BLANKENSHIP, Administrative Patent Judges.
GROSS, Administrative Patent Judge.
DECISION ON APPEAL
This is a decision on appeal from the examiner's final
rejection of claims 1 through 20, which are all of the claims pending
in this application.
Appellants' invention relates to an ink jet printing head. A
main frame supports a head assembly having pressure chambers filled
with ink and corresponding piezoelectric elements. Each chamber's
volume varies with a voltage applied to the associated piezoelectric
element. A hollow portion in the center of the main frame, a
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