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US 6,800,374 B2Granted
Cleaning tape
AssigneeSony Corporation
InventorsHidetoshi Honda, Takashi Kanou, Hitoshi Wako, Satoshi Sekino, Ryoichi Hiratsuka
Life of this patent
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Abstract
A cleaning tape comprising a nonmagnetic base film, an evaporated metal layer, specifically a magnetic layer or electroconductive layer, formed on the nonmagnetic base film, an inorganic protective film formed on the evaporated metal layer, and surface projections formed on the nonmagnetic base film by particles having a predetermined diameter and density. The tape has a low electric resistivity, a low head abrasion, and a sufficient cleaning effect suitable for cleaning a magnetoresistive type head.
Claims28
A cleaning tape comprising:
- a nonmagnetic base film;
- an evaporated metal layer formed on the nonmagnetic base film;
- an inorganic protective film formed on the evaporated metal layer;
- a top coating layer formed on the entire inorganic protective film;
- and
- particles effectively disposed in said inorganic protective film to create surface projections, said surface projections varying in accordance with the diameter and density of the particles.
3 more elements
A cleaning tape comprising:
- a back coating layer;
- a nonmagnetic base film;
- an evaporated metal layer formed on the nonmagnetic base film;
- an inorganic protective film formed on the evaporated metal layer;
- a top coating layer;
- and
- particles effectively disposed in said inorganic protective film to create surface projections, said surface projections varying in accordance with the diameter and density of the particles.
4 more elements
Dependencies are inferred from the claim text.