Color laser marking
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 28, 2017
Grant Date -
Sep 10, 2015
app pub date -
Oct 10, 2013
filing date -
Oct 11, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for preparing a color laser marked article using three infrared lasers L-1, L-2 and L-3 having respectively a laser emission wavelength of λ(L-1), λ(L-2) and λ(L-3) includes the steps of laser marking with the infrared laser L-1 a first color laser markable layer including an infrared dye IR-1 having an absorption maximum in the infrared region λmax(IR-1); laser marking with the infrared laser L-2 a second color laser markable layer including an infrared dye IR-2 having an absorption maximum in the infrared region λmax(IR-2); laser marking with the infrared laser L-3 a third color laser markable layer including an infrared dye IR-3 having an absorption maximum in the infrared region λmax(IR-3); and at least partially exposing the color laser markable article to light having a wavelength between 520 nm and 700 nm, wherein, the laser emission wavelengths satisfy the condition of: λ(L-1)>λ(L-2)>λ(L-3); the infrared red dye absorption maxima satisfy the condition of: λmax(IR-1)>λmax(IR-2)>λmax(IR-3); and the light emitted by the infrared laser L-1 passes, in order, through the third and second color laser markable layer before exposing the first color laser markable layer.
First Claim
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International Classification(s)
- 2013 Application Filing Year
- B41M Class
- 377 Applications Filed
- 352 Patents Issued To-Date
- 93.37 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B41M Class
- 0 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 28, 2028 |
