(19)
(11) EP 1 291 084 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
28.04.2004 Bulletin 2004/18

(43) Date of publication A2:
12.03.2003 Bulletin 2003/11

(21) Application number: 02256167.4

(22) Date of filing: 05.09.2002
(51) International Patent Classification (IPC)7: B01L 3/02, B41J 2/16
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 05.09.2001 JP 2001268867

(71) Applicant: NGK INSULATORS, LTD.
Nagoya-City, Aichi Prefecture 467-8530 (JP)

(72) Inventors:
  • Okumura, H., Legal Affairs & Intell. Prop. Dpt
    Nagoya-shi, Aichi-ken 467-8530 (JP)
  • Ohnishi, Takao, Legal Affairs & Intell. Prop. Dpt
    Nagoya-shi, Aichi-ken 467-8530 (JP)
  • Mizuno, H., Legal Affairs & Intell. Prop. Dpt.
    Nagoya-shi, Aichi-ken 467-8530 (JP)
  • Hirota, T., Legal Affairs & Intellectual Prop. Dpt
    Nagoya-shi, Aichi-ken 467-8530 (JP)

(74) Representative: Paget, Hugh Charles Edward et al
MEWBURN ELLIS York House 23 Kingsway
London WC2B 6HP
London WC2B 6HP (GB)

   


(54) Composite nozzle, liquid drop emitter, and fabricating method thereof


(57) A composite nozzle is provided which includes a first nozzle and a second nozzle. The first nozzle is formed in an adhesive layer made having a Young's modulus Ea and defines an upstream portion of an outlet path of the composite nozzle. The second nozzle is formed in a nozzle base layer having a Young's modulus Es and defines a downstream portion of the outlet path of the composite nozzle. The nozzle base layer is attached through the adhesive layer to a flow path member leading to an inlet. A Young's modulus ratio of Es to Ea is selected within a range of 1.4 to 500, thereby facilitating absorption of vibrations of the nozzle base layer through the adhesive layer.






Search report