Optical tape
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United States of America Patent
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Jun 18, 1996
Grant Date -
N/A
app pub date -
Dec 4, 1992
filing date -
Dec 4, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An optical tape comprising a substrate having a center line average roughness (Ra.sup.A) on one side of 0.005 to 0.5 .mu.m and a tensile strength (F.sub.5) in the longitudinal direction of not less than 8 kg/mm.sup.2, and an optical recording layer formed on the other side of said substrate.
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