Liquid ejection head

Details Liquid ejection head Liquid ejection head

2011-08-16

2011-08-16

Do, An H (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07997693

ABSTRACT:
In order to provide a liquid ejection head which enables ejection of a droplet at a higher frequency, according to the invention, a piezoelectric vibrator has a multilayer structure. In the multilayer structure, an upper piezoelectric layer and a lower piezoelectric layer are laminated one on another. A drive electrode is formed at a boundary between the upper piezoelectric layer and the lower piezoelectric layer and is electrically connected to a source for supplying a drive signal. An upper common electrode is formed on the surface of the upper piezoelectric layer. A lower common electrode is formed on the surface of the lower piezoelectric layer. An inertance of a nozzle orifice and an inertance of an ink supply port are set so as to become greater than an inertance of a pressure generating portion.

REFERENCES:
patent: 4525728 (1985-06-01), Koto
patent: 5475279 (1995-12-01), Takeuchi et al.
patent: 5643379 (1997-07-01), Takeuchi et al.
patent: 5754204 (1998-05-01), Kitahara
patent: 5933170 (1999-08-01), Takeuchi et al.
patent: 6290340 (2001-09-01), Kitahara et al.
patent: 6352330 (2002-03-01), Lubinsky et al.
patent: 6450603 (2002-09-01), Chang
patent: 6557985 (2003-05-01), Hosono et al.
patent: 6719410 (2004-04-01), Shingai et al.
patent: 6796637 (2004-09-01), Kitagawa et al.
patent: 6997547 (2006-02-01), Junhua
patent: 7044586 (2006-05-01), Takeuchi et al.
patent: 7140554 (2006-11-01), Chang
patent: 0 787 589 (1997-08-01), None
patent: 1 024 003 (2000-08-01), None
patent: 61-141566 (1986-06-01), None
patent: 6-040035 (1994-02-01), None
patent: 8-290571 (1996-11-01), None
patent: 9-323410 (1997-12-01), None
patent: 10-146967 (1998-06-01), None
patent: 11-129468 (1999-05-01), None
patent: 11-320889 (1999-11-01), None
patent: 2000-117972 (2000-04-01), None
patent: 2000-218787 (2000-08-01), None
patent: 2001-047621 (2001-02-01), None
patent: 2001-171115 (2001-06-01), None
patent: 2001-260308 (2001-09-01), None
patent: 2001-277496 (2001-10-01), None
patent: 2002-052713 (2002-02-01), None
patent: 01/42018 (2001-06-01), None

Affiliated with

Also associated with

Rating

Liquid ejection head does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Liquid ejection head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid ejection head will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2738157