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| United States Patent |
6,426,481
|
|
Koide
, et al.
|
July 30, 2002
|
Method for manufacturing discharge nozzle of liquid jet recording head and
method for manufacturing the same head
Abstract
A method for manufacturing a liquid jet recording head and a method for
manufacturing discharge nozzles thereof through which drops of recording
liquid or the like are projected to be deposited on a printing medium. The
method for manufacturing the discharge nozzles uses sublimation caused by
an ultraviolet laser. In the method, a laser beam is emitted from the
liquid ejection side of a discharge port forming plate, and a mask plate
having a total-reflection mirror coating layer to prevent it from being
damaged is used. The method allows many discharge nozzles, tapered so that
they are progressively thinner toward their ends, to be formed on the
liquid ejection side of the discharge port forming plate simultaneously in
a short period of time.
| Inventors:
|
Koide; Jun (Tokyo, JP);
Sato; Kenji (Tokyo, JP);
Kubota; Masahiko (Tokyo, JP)
|
| Assignee:
|
Canon Kabushiki Kaisha (Tokyo, JP)
|
| Appl. No.:
|
604395 |
| Filed:
|
June 27, 2000 |
Foreign Application Priority Data
| Jun 29, 1999[JP] | 11-182892 |
| Jun 29, 1999[JP] | 11-182931 |
| Current U.S. Class: |
219/121.71 |
| Intern'l Class: |
B23K 026/38 |
| Field of Search: |
219/121.7,121.71
347/47
430/5
|
References Cited
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|
| 5189347 | Feb., 1993 | Michaelis et al. | 219/121.
|
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| 5326426 | Jul., 1994 | Tam et al.
| |
| 5657539 | Aug., 1997 | Orikasa et al. | 29/890.
|
| 5948290 | Sep., 1999 | Yamamoto et al. | 219/121.
|
| 6048652 | Apr., 2000 | Nguyen et al. | 430/5.
|
| 6120976 | Sep., 2000 | Treadwell et al.
| |
| Foreign Patent Documents |
| 309146 | Mar., 1989 | EP.
| |
| 0761448 | Dec., 1997 | EP.
| |
| 968824 | Jan., 2000 | EP.
| |
| 6510958 | Dec., 1994 | JP.
| |
| 8-132260 | May., 1996 | JP.
| |
| 9-118017 | May., 1997 | JP.
| |
Primary Examiner: Evans; Geoffrey S.
Attorney, Agent or Firm: Fitzpatrick, Cella, Harper & Scinto
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