Optical tape
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 17, 1995
Issued Date -
N/A
app pub date -
Apr 28, 1994
filing date -
Jan 7, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed herein is an optical tape comprising: a substrate whose a center-line average roughness (Ra.sup.B) on the surface of one side is not more than 0.005 .mu.m and the number of coarse protuberances having a height of not less than 0.10 .mu.m in the surface of that side is not more than 10 protuberances/cm.sup.2, and an optical recording layer formed on the surface whose the Ra.sup.B is not more than 0.005 .mu.m.
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