Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2011-04-19
2011-04-19
Feggins, K. (Department: 2861)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
Reexamination Certificate
active
07926921
ABSTRACT:
A liquid transporting apparatus which transports a liquid includes a channel unit having a surface which is electroconductive and a liquid channel which includes a pressure chamber; a piezoelectric actuator applying a pressure to the liquid in the pressure chamber and having a piezoelectric layer arranged to face the surface of the channel unit and to cover the pressure chamber, electrodes which are arranged in the piezoelectric layer to face the pressure chamber, and a first isolating film arranged between the piezoelectric layer and the surface of the channel unit to cover the pressure chamber; and a deterioration detecting mechanism detecting a deterioration of the first isolating film and having a second isolating film which is electroconductive and stacked on a surface, of the first isolating film, on a side of the piezoelectric layer, and which is insulated from both the electrodes and the channel unit.
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Japan Patent Office; Notice of Reasons for Rejection in Japanese Patent Application No. 2008-085355 (counterpart to the above-captioned U.S. patent application) mailed Apr. 27, 2010.
Baker & Botts LLP
Brother Kogyo Kabushiki Kaisha
Feggins K.
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