Droplet jet head and droplet jet applicator

Details Droplet jet head and droplet jet applicator Droplet jet head and droplet jet applicator

2007-06-28

2010-12-07

Do, An H (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07845771

ABSTRACT:
A droplet jet head includes: a base member holding a plurality of piezoelectric elements; a vibration plate provided on the base member and vibrated by each of the plurality of piezoelectric elements; a liquid chamber plate provided on the vibration plate and forming wall surfaces of a plurality of liquid chambers containing liquid; a nozzle plate provided on the liquid chamber plate and having a plurality of nozzles communicating with the plurality of liquid chambers, respectively; a holder plate provided on the liquid chamber plate in a manner of covering the nozzle plate and having an opening which exposes each of the plurality of nozzles; a buffer member provided between the holder plate and the nozzle plate; and a plurality of screws fastening the base member, the vibration plate, the liquid chamber plate and the holder plate.

REFERENCES:
patent: 2005/0212866 (2005-09-01), Furuya et al.
patent: 2010/0112734 (2010-05-01), Koizumi et al.
patent: 55-42862 (1980-03-01), None
patent: 2005-270743 (2005-10-01), None

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