Piezoelectric device, liquid droplet discharging head using...

Details Piezoelectric device, liquid droplet discharging head using... Piezoelectric device, liquid droplet discharging head using...

2007-09-25

2007-09-25

Do, An H. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

10887335

ABSTRACT:
A piezoelectric device includes a piezoelectric body layer, a first electrode layer at one face side of the piezoelectric body layer, and a second electrode layer at a side of a face of the same that is opposite to the side at which the first electrode layer is disposed. Higher potentials are applied to the first electrode layer and lower potentials are applied to the second electrode layer. The piezoelectric device features a metallic layer disposed in contact with a piezoelectric body layer surface at the side at which the first electrode layer is provided, and a metal oxide layer disposed in contact with a piezoelectric body layer surface at the side at which the second electrode layer is provided. The metallic layer is formed of a metallic material with a standard electrode potential greater than 0 V, and the metal oxide layer is formed of a metal oxide.

REFERENCES:
patent: 6494567 (2002-12-01), Murai
patent: 6929355 (2005-08-01), Matsuzawa
patent: 7008048 (2006-03-01), Sakaida
patent: A-11-157070 (1999-06-01), None
patent: A-2001-11-334062 (1999-12-01), None
patent: B-3019845 (2000-01-01), None
patent: A-2001-88296 (2001-04-01), None
patent: A-2001-210888 (2001-08-01), None

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