EP 0897803 A2 19990224 - Ink-jet head and methods of manufacturing and driving the same
Title (en)
Ink-jet head and methods of manufacturing and driving the same
Title (de)
Tintenstrahlkopf und Verfahren zu seiner Herstellung und zu seiner Steuerung
Title (fr)
Tête à jet d'encre et procédés pour sa fabrication et son actionnement
Publication
Application
Priority
- EP 94929664 A 19941014
- JP 28037193 A 19931014
- JP 11131294 A 19940525
Abstract (en)
An ink-jet head is provided, comprising a base plate (11), a plurality of partitions (10) formed by laminating a plurality of plate-shaped piezoelectric material layers (1a - 1c) polarized in a direction of thickness with conductive material layers (2a - 2d) interposed among them, a cover (14), and a sealing member (22), wherein said plural partitions (10) are arranged with given gaps (20, 21, 29) interposed between them on said base plate (11) said gaps (20, 21, 29) being closed by said cover (14) at upper portions thereof and by said sealing member (22) at side portions thereof to form pressurizing chambers (15), and a nozzle hole (23) is formed at a portion of each of said pressurizing chambers (15), and said partitions (10) are laminated piezoelectric actuators each of which has a piezoelectric strain coefficient d<sub>33</sub> and is deformed in the direction of thickness when voltage is applied thereto.
IPC 1-7
IPC 8 full level
B41J 2/045 (2006.01); B41J 2/14 (2006.01); B41J 2/16 (2006.01)
CPC (source: EP)
B41J 2/14274 (2013.01); B41J 2/1612 (2013.01); B41J 2/1623 (2013.01); B41J 2/1632 (2013.01); B41J 2/1634 (2013.01); B41J 2/1642 (2013.01); B41J 2002/14387 (2013.01)
Citation (applicant)
- JP S5312138 A 19780203 - OBAYASHI GUMI KK
- JP S6159914 A 19860327 - FUJITSU LTD
- JP H0452213 A 19920220 - DAIDO STEEL CO LTD
- JP H0448622 A 19920218 - SANYO ELECTRIC CO
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0897803 A2 19990224; EP 0897803 A3 19990310; EP 0897803 B1 20010725; DE 69427837 D1 20010830; DE 69427837 T2 20020404; DE 69427926 D1 20010913; DE 69427926 T2 20011206; EP 0723866 A1 19960731; EP 0723866 A4 19970326; EP 0897802 A2 19990224; EP 0897802 A3 19990310; EP 0897802 B1 20010808; WO 9510416 A1 19950420
DOCDB simple family (application)
EP 98120935 A 19941014; DE 69427837 T 19941014; DE 69427926 T 19941014; EP 94929664 A 19941014; EP 98120934 A 19941014; JP 9401730 W 19941014