Global Patent Index - EP 0322991 A1

EP 0322991 A1 19890705 - Wire dot print head.

Title (en)

Wire dot print head.

Title (de)

Drahtpunktdruckkopf.

Title (fr)

Tête d'impression par points à fils.

Publication

EP 0322991 A1 19890705 (EN)

Application

EP 88300001 A 19880104

Priority

JP 184287 A 19870109

Abstract (en)

Print wires for use in a wire dot print head si produced by preparing a powder of high-speed steel with no less than 4.0 weight present of vanadium and no less then 14 equivalents of tungsten, hardening the powder into a mass, and forming a wire from the mass.

IPC 1-7

B41J 3/12

IPC 8 full level

B41J 2/25 (2006.01)

CPC (source: EP KR)

B41J 2/25 (2013.01 - EP); B41J 2/505 (2013.01 - KR)

Citation (search report)

  • US 3828908 A 19740813 - SCHNEIDER W
  • Derwent Accession No. 86-274 634, Questele Telesystemes (WPIL) Derwent Publications Ltd., London * Abstract * & JP-A-61-199 055 (Hitachi)
  • Derwent Accession No. 87-274 871, Questele Telesystemes (WPIL) Derwent Publications Ltd., London * Abstract * & JP-A-62-192 574 (Kobe Steel)
  • Derwent Accession No. 83-732 685, Questele Telesystemes (WPIL) Derwent Publications Ltd., London * Abstract * & JP-A-58-112 761 (Hitachi)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0322991 A1 19890705; JP S63170042 A 19880713; KR 880008884 A 19880913

DOCDB simple family (application)

EP 88300001 A 19880104; JP 184287 A 19870109; KR 880000065 A 19880108