US5138131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser cutting method and apparatus for effecting said method
Assignee: Panasonic Holdings Corp
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Filing: 1991-03-05
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Granted: 1992-08-11
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Expires: 2011-03-05
Abstract
Abstract A laser cutting method for a glass material, includes steps of forming a continuous scribing line at least on one side face of the glass material, and projecting a laser beam onto the scribing line. A laser cutting apparatus for effecting the laser cutting method, includes a laser oscillating source for emitting the laser beam, a light condensing device for condensing the laser beam onto a surface of the glass material, a scribing device for forming the scribing line on the surface of the glass material, and a displacing device for displacing the laser beam on the scribing line following movement of the scribing point.
Inventors
- 👤 Yukio Nishikawa
- 👤 Yuji Uesugi
- 👤 Katsuhiro Kuriyama
- 👤 Tadao Shioyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:41
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/50; B23K26/53; C; C03; C03B; C03B33/00; C03B33/08; C03B33/082; B23K26/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A laser cutting apparatus for cutting a glass material, comprising a laser oscillating source for emitting a laser beam, a light condensing device for condensing the laser beam onto a surface of the glass material, a scribing device for forming a scribing line on the surface of the glass material, a displacing device for displacing the laser beam along the scribing line following movement of the scribing point, and a rotary mechanism on which said scribing device and said light condensing device are mounted at equal distances from a rotational center of said rotary mechanism.
Claim 2
Dependent Claim
95 words
A laser cutting apparatus for cutting a glass material, comprising a laser oscillating source for emitting a laser beam, a light condensing device for condensing the laser beam onto a surface of the glass material, a scribing device for forming a scribing line on the surface of the glass material, a displacing device for displacing the laser beam along the scribing line following movement of the scribing point, and a rotary mechanism on which said scribing device and said light condensing device are mounted at equal distances from a rotational center of said rotary mechanism.
References Cited (Backward Citations)
US4343993A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-08-11 | 1996-02-10 | 1996-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-11 | 2000-02-10 | 2000-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-11 | 2004-02-10 | 2004-08-11 | $7700.00 | Window Closed / Lapsed |