US5622811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for forming resin articles
Assignee: Panasonic Holdings Corp
•
Filing: 1995-02-07
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Granted: 1997-04-22
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Expires: 2015-02-07
Abstract
Abstract In a method and apparatus for forming a resin article by forming a film of photosetting resin liquid on a surface of a workpiece, the workpiece is held in a direction to keep its axis approximately in a horizontal posture. The workpiece is rotated about the axis to thereby form the film of the resin liquid on the surface of the workpiece. The laser beam supplied from above the workpiece is emitted toward the film. At least one of the workpiece and the laser beam is relatively moved continuously or intermittently along the axis.
Inventors
- 👤 Yousuke Ogue
- 👤 Hideho Ariyoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:49
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/08; B23K26/0823; B29; B29C; B29C35/00; B29C35/02; B29C35/08; B29C41/00; B29C41/02; B29C41/14; B29C41/20; B29C35/0805; B29C2035/0838; Y; Y10; Y10S; Y10S430/00; Y10S430/146
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
135 words
A method for forming a resin article by forming a film of photosetting resin liquid or thermosetting resin liquid on a surface of a workpiece, which comprises: a step of holding the workpiece in a direction to keep its axis approximately in a horizontal posture; a step of rotating the workpiece about the axis to thereby form the film of the liquid on the surface of the workpiece; a step of supplying a beam from above the workpiece onto the film for setting the resin liquid; a step of relatively moving at least one of the workpiece and the beam continuously or intermittently along the axis; and a step of using a smoothing means to regulate a thickness of the film formed on the surface of the workpiece over a liquid bath containing the liquid.
Claim 2
Independent Claim
135 words
A method for forming a resin article by forming a film of photosetting resin liquid or thermosetting resin liquid on a surface of a workpiece, which comprises: a step of holding the workpiece in a direction to keep its axis approximately in a horizontal posture; a step of rotating the workpiece about the axis to thereby form the film of the liquid on the surface of the workpiece; a step of supplying a beam from above the workpiece onto the film for setting the resin liquid; a step of relatively moving at least one of the workpiece and the beam continuously or intermittently along the axis; and a step of using a smoothing means to regulate a thickness of the film formed on the surface of the workpiece over a liquid bath containing the liquid.
Claim 3
Dependent Claim
23 words
The forming method as claimed in claim 1, wherein a direction of the rotation of the workpiece about the axis is periodically changed.
Claim 4
Dependent Claim
55 words
The forming method as claimed in claim 1, wherein in the rotating step, when the workpiece is rotated about the axis to thereby form the film of the liquid on the surface of the workpiece, starting points of setting are shifted to prevent residual stress caused on the workpiece from being concentrated at one point.
Claim 5
Dependent Claim
46 words
The forming method as claimed in claim 1, wherein in the rotating step, when the workpiece is rotated about the axis to thereby form the film of the liquid on the surface of the workpiece, the workpiece is set inside a liquid bath containing the liquid.
Claim 6
Dependent Claim
46 words
The forming method as claimed in claim 1, wherein in the rotating step, when the workpiece is rotated about the axis to thereby form the film of the liquid on the surface of the workpiece, the workpiece is set over a liquid bath containing the liquid.
Claim 7
Dependent Claim
62 words
The forming method as claimed in claim 1, wherein in the beam emitting step, the beam is emitted from a laser beam source for setting the photosetting resin liquid, a range of a laser scanning speed of the beam is from 10 mm/sec through 2,000 mm/sec, and a range of a spot diameter of the beam is 0.02 mm through 2.0 mm.
References Cited (Backward Citations)
US5174943A
Cited
US5094935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-04-21 | 2000-10-21 | 2001-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-04-21 | 2004-10-21 | 2005-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-04-21 | 2008-10-21 | 2009-04-22 | $7700.00 | Window Closed / Lapsed |