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US4847181A
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US
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Laser marking method
Assignee: Mazda Motor Corp
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Filing: 1987-08-07
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Granted: 1989-07-11
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Expires: 2007-08-07
Abstract
Abstract A laser marking method comprising steps of preparing a label material consisting of a colour layer and a transparant layer, applying the label material on a marking surface of a work, illuminating the marking surface through the label material with a laser beam of a wave length transilluminating the transparent layer so as to form a mark of a certain information on the marking surface of the work and in the coloured layer of the label material, and removing the label material from the marking surface of the work to produce a recorded label. The label can be produced simultaniously with the mark on the work wherein the information shown on the label is sophisticatedly identical with the information of the mark on the work surface.
Inventors
- 👤 Kiyofumi Shimokawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:35
CPC Classifications
G; G09; G09F; G09F3/00; B; B41; B41M; B41M5/00; B41M5/24; B41M5/26; B41M5/40; B41M5/41; B41M5/42; B41M5/44; Y; Y10; Y10S; Y10S430/00; Y10S430/146; Y10S430/165; Y10T; Y10T428/00; Y10T428/28; Y10T428/2804; Y10T428/2809
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
107 words
A laser marking method comprising the steps of: providing at least one label material element consisting of a first layer of aluminum absorbing a visible ray and a second layer transilluminating the visible ray, applying the label material on a marking surface of a work; illuminating the marking surface through the label material with a laser beam of a wave length transilluminating said second layer so as to form a mark of certain information on the marking surface of the work and in said first layer of the label material, and removing the label material from the marking surface of the work to produce a recorded label.
Claim 2
Dependent Claim
107 words
A laser marking method comprising the steps of: providing at least one label material element consisting of a first layer of aluminum absorbing a visible ray and a second layer transilluminating the visible ray, applying the label material on a marking surface of a work; illuminating the marking surface through the label material with a laser beam of a wave length transilluminating said second layer so as to form a mark of certain information on the marking surface of the work and in said first layer of the label material, and removing the label material from the marking surface of the work to produce a recorded label.
Claim 3
Dependent Claim
29 words
A laser marking method in accordance with claim 1 and further comprising the step of joining the first layer and the second layer to form said label material element.
Claim 4
Dependent Claim
28 words
A laser marking method in accordance with claim 2 in which the second layer is made from one of an polyester resin and a vinyl chloride base resin.
Claim 5
Dependent Claim
37 words
A laser marking method in accordance with claim 1 in which an adhesive is employed for adhering the label material element to the marking surface of the work, the adhesive being adhered to the label material element.
Claim 6
Dependent Claim
20 words
A laser marking method in accordance with claim 4 in which the adhesive is made of an acrylic base resin.
Claim 7
Dependent Claim
16 words
A laser marking method in accordance with claim 1 in which the laser is YAG laser.
Claim 8
Dependent Claim
36 words
A laser marking method in accordance with claim 1 in which information to be marked is provided prior to a marking treatment and the information is read and marked on the work at a marking station.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-10 | 1993-01-09 | 1993-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-10 | 1997-01-09 | 1997-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-10 | 2001-01-09 | 2001-07-11 | $7700.00 | Window Closed / Lapsed |