Method of producing a disc and a disc obtained by the method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 11, 2003
Grant Date -
N/A
app pub date -
Feb 23, 2000
filing date -
Feb 23, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of producing a disc having at least one substrate and at least one information layer on the substrate, the method includes bringing the substrate in parallel relationship with a stamper having a negative of the information layer to be formed on the substrate. A gap is located between the substrate and the stamper. A lacquer is injected into the gap between the substrate and the stamper. At least the stamper is rotated, moving the substrate and the stamper towards each other, thereby reducing the gap. The layer of lacquer formed between the substrate and the stamper is cured, and the stamper is removed, leaving the layer of cured lacquer with the information layer formed therein on substrate. Before bringing the substrate in parallel relationship with the stamper, the substrate is provided with a first information layer and a semi-reflective layer located thereon, whereby the layer of lacquer is formed onto the semi-reflective layer.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully