Discharge head, method of manufacturing discharge head, and...

Details Discharge head, method of manufacturing discharge head, and... Discharge head, method of manufacturing discharge head, and...

2005-03-29

2009-08-18

Meier, Stephen D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S010000

Reexamination Certificate

active

07575306

ABSTRACT:
The discharge head comprises: a liquid chamber which accommodates a liquid to be discharged from a discharge hole onto a discharge receiving medium; a piezoelectric body which applies a discharge pressure to the liquid inside the liquid chamber; a thin film member which includes a first electrode provided at least on a surface of the piezoelectric body on a side facing the liquid chamber; a second electrode which is provided on a surface of the piezoelectric body on a side opposite to the liquid chamber; and a holding plate which is bonded to a surface of the second electrode on a side opposite to the piezoelectric body, wherein a thickness of the thin film member is less than a sum of a thickness of the second electrode and a thickness of the holding plate.

REFERENCES:
patent: 5530465 (1996-06-01), Hasegawa et al.
patent: 5767612 (1998-06-01), Takeuchi et al.
patent: 6092886 (2000-07-01), Hosono
patent: 6312077 (2001-11-01), Araki
patent: 10-119262 (1998-05-01), None
patent: 10-151179 (1998-06-01), None
patent: 10-151739 (1998-06-01), None
patent: 10-217466 (1998-08-01), None
patent: 2001-58401 (2001-03-01), None
patent: 2003-136715 (2003-05-01), None

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