EP 0389296 A3 19910403 - INK JET HEAD SUBSTRATE, INK JET HEAD HAVING SAME AND MANUFACTURING METHOD FOR INK JET HEAD
Title (en)
INK JET HEAD SUBSTRATE, INK JET HEAD HAVING SAME AND MANUFACTURING METHOD FOR INK JET HEAD
Publication
Application
Priority
- JP 347990 A 19900112
- JP 7218389 A 19890324
Abstract (en)
[origin: EP0389296A2] An ink jet recording head substrate includes a supporting member (1), a plurality of electrothermal transducers having heat generating resistors (2a) and electrodes (3a, b) electrically connected to the heat generating resistors; and identification marks (4) for easy identification of each of the electrothermal transducers.
IPC 1-7
IPC 8 full level
B41J 2/16 (2006.01)
CPC (source: EP)
B41J 2/1604 (2013.01); B41J 2/1623 (2013.01); B41J 2/1631 (2013.01); B41J 2/1632 (2013.01); B41J 2/1639 (2013.01); B41J 2/1643 (2013.01); B41J 2/1646 (2013.01)
Citation (search report)
- [A] US 4716421 A 19871229 - OZAWA KUNITAKA [JP], et al
- [A] US 4740800 A 19880426 - KYOSHIMA MASAYUKI [JP]
- [A] DE 3702643 A1 19870813 - TOSHIBA KAWASAKI KK [JP]
- [A] EP 0066835 A2 19821215 - SIEMENS AG [DE]
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0389296 A2 19900926; EP 0389296 A3 19910403; EP 0389296 B1 19950614; AT E123705 T1 19950615; DE 69020021 D1 19950720; DE 69020021 T2 19951102
DOCDB simple family (application)
EP 90303137 A 19900323; AT 90303137 T 19900323; DE 69020021 T 19900323