Magnetic tape
AssigneeQuantum Corporation
InventorsAkira Ishikawa, Takashi Ishii, Mitsuhiro Katashima, Manabu Hosoya, Tomohiko Onda
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Abstract
A magnetic tape (1) characterized by having a backcoating layer (5) which comprises a binder and fine particles having been dispersed in the binder and being capable of irreversibly changing in color on oxidation reaction, and has a sufficient number of microvoids of sufficient size to supply sufficient oxygen to cause the oxidation reaction.
Claims16
Magnetic tape comprising a substrate, a magnetic layer provided on one side of said substrate and a backcoating layer provided on the other side of said substrate, wherein:
- said backcoating layer comprises a binder and particles having been dispersed in said binder and being capable of irreversibly changing in color on oxidation reaction, and has a sufficient number of microvoids of sufficient size to supply sufficient oxygen to cause said oxidation reaction.
Magnetic tape comprising a substrate, a magnetic layer provided on one side of said substrate and a backcoating layer provided on the other side of said substrate, wherein:
- said backcoating layer comprises a binder and particles having been dispersed in said binder and being capable of irreversibly changing in color on oxidation reaction, and has a sufficient number of microvoids of sufficient size to supply sufficient oxygen to cause said oxidation reaction, and
- said particles have changed in color to form a color change pattern on said backcoating layer.
Dependencies are inferred from the claim text.