Global Patent Index - EP 1098770 A1

EP 1098770 A1 2001-05-16 - HEATING RESISTOR AND MANUFACTURING METHOD THEREOF

Title (en)

HEATING RESISTOR AND MANUFACTURING METHOD THEREOF

Title (de)

HEIZWIDERSTAND UND HERSTELLUNGSVERFAHREN DAFÜR

Title (fr)

RESISTANCE CHAUFFANTE ET SON PROCEDE DE FABRICATION

Publication

EP 1098770 A1 (EN)

Application

EP 00922999 A

Priority

  • JP 0002950 W
  • JP 13330699 A
  • JP 2000067612 A

Abstract (en)

[origin: WO0069635A1] Forming a heating resistor which emits heat by electric current applied thereto, with non-metallic materials comprising at least tantalum (Ta), silicon (Si), oxygen (O), and nitrogen (N). In a case where such heating resistor has mole ratio Si/Ta of 0.35<Si/Ta<0.80, oxygen mol% of 25 mol% to 45 mol%, and nitrogen mol% of 5 mol% to 25 mol%, the heating resistor shows resistivity equal to or greater than 4 m OMEGA cm, peak angle 2 theta of X-ray diffraction strength is equal to or smaller than 37.5 degrees, and has resistance over 100,000,000 pulses. The heating resistor having the above characteristics is suitable for a print head of a thermal ink-jet printer. Further, the heating resistor shows stable but high resistivity, after the heating resistor is annealed.

IPC 1-7 (main, further and additional classification)

B41J 2/14; B41J 2/16

IPC 8 full level (invention and additional information)

B41J 2/14 (2006.01); B41J 2/16 (2006.01)

CPC (invention and additional information)

B41J 2/1623 (2013.01); B41J 2/14129 (2013.01); B41J 2/1601 (2013.01); B41J 2/1628 (2013.01); B41J 2/1631 (2013.01); B41J 2/1646 (2013.01)

Citation (search report)

See references of WO 0069635A1

Designated contracting state (EPC)

DE GB IE IT

EPO simple patent family

WO 0069635 A1 20001123; CN 1201933 C 20050518; CN 1304362 A 20010718; EP 1098770 A1 20010516

INPADOC legal status


2008-09-03 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20080311

2007-11-28 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20071030

2001-05-16 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010110

2001-05-16 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE GB IE IT