Droplet discharging head, energy converter, piezoelectric...

Details Droplet discharging head, energy converter, piezoelectric... Droplet discharging head, energy converter, piezoelectric...

2011-05-31

2011-05-31

Mruk, Geoffrey (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S068000

Reexamination Certificate

active

07950782

ABSTRACT:
A droplet discharging head includes a substrate, a cavity section positioned on a first surface side of the substrate, a piezoelectric thin film positioned on a second surface side of the substrate and disposed in an area opposing the cavity section, a cover section positioned on the first surface side of the substrate, and disposed covering the cavity section, the cover section having a through-hole, and a groove positioned on the second surface side of the substrate and disposed in a direction extending along an edge of the piezoelectric thin film.

REFERENCES:
patent: 6584660 (2003-07-01), Shimogawa et al.
patent: 2006/0181582 (2006-08-01), Sugahara
patent: A-11-034360 (1999-02-01), None
patent: A-2005-111982 (2005-04-01), None
patent: A-2005-268549 (2005-09-01), None
A. Barzegar et al.; “Piezoelectric response of thin films determined by charge integration technique: Substrate bending effects”;Journal of Applied Physics; vol. 93, No. 8; Apr. 15, 2003.

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