Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2007-10-30
2007-10-30
Do, An H. (Department: 2853)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
Reexamination Certificate
active
10990492
ABSTRACT:
A method of manufacturing an ink jet head which discharges ink, comprising: a step of preparing a silicon substrate; a step of forming a membrane having a layer in which a plurality of holes are disposed to constitute a filter mask, and a layer with which a first surface is coated in such a manner that the first surface is not exposed from the plurality of holes on the first surface of the substrate; a step of forming a close contact enhancing layer on the membrane formed on the substrate; a step of forming a channel constituting member on the close contact enhancing layer to constitute a plurality of discharge ports and a plurality of ink channels communicating with the plurality of discharge ports; a step of forming an ink supply port communicating with the plurality of ink channels in the silicon substrate by anisotropic etching from a second surface facing the first surface of the substrate; and a step of forming a filter in a portion of the close contact enhancing layer positioned in an opening of the ink supply port using the layer of the membrane in which a plurality of holes are disposed as the mask.
REFERENCES:
patent: 5124717 (1992-06-01), Campanelli et al.
patent: 5478606 (1995-12-01), Ohkuma et al.
patent: 5940957 (1999-08-01), Goto et al.
patent: 6084618 (2000-07-01), Baker
patent: 6139761 (2000-10-01), Ohkuma
patent: 6264309 (2001-07-01), Sullivan
patent: 6543884 (2003-04-01), Kawamura et al.
patent: 6582064 (2003-06-01), Cruz-Uribe et al.
patent: 6752489 (2004-06-01), Ohashi et al.
patent: 6814435 (2004-11-01), Shimada et al.
patent: 6858152 (2005-02-01), Koyama et al.
patent: RE38710 (2005-03-01), Goto et al.
patent: 2003/0197763 (2003-10-01), Koyama et al.
patent: 2000-94700 (2000-04-01), None
English-language summary of Japanese Official Letter/Search Report dated Nov. 15, 2006 issued in corresponding foreign patent application.
Fujii Kenji
Koyama Shuji
Murayama Hiroyuki
Nagata Shingo
Osumi Masaki
Canon Kabushiki Kaisha
Do An H.
Fitzpatrick ,Cella, Harper & Scinto
LandOfFree
Method of manufacturing ink jet recording head, ink jet... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of manufacturing ink jet recording head, ink jet..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing ink jet recording head, ink jet... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3859329