Magnetic tape device, magnetic tape, and magnetic tape cartridge
AssigneeFujifilmCorporation
InventorNorihito KASADA
Life of this patent
Estimating the term…
Abstract
A magnetic tape device; a magnetic tape; and a magnetic tape cartridge, in which the magnetic tape is caused to run between a winding reel and a cartridge reel in a state where a tension is applied in a longitudinal direction and a maximum value of the tension is 0.50 N or more, and the magnetic tape after running in a state where the tension is applied is wound around the cartridge reel by applying a tension of 0.40 N or less in the longitudinal direction of the magnetic tape, and the number of recesses having an equivalent circle diameter of 0.20 μm to 0.50 μm existing on a surface of the magnetic layer of the magnetic tape is 10 to 500 per 40 μm×40 μm area.
Claims15
A magnetic tape device comprising:
- a winding reel;
- a magnetic tape;
- and
- a magnetic tape cartridge including a cartridge reel,
- wherein, in the magnetic tape device,
- the magnetic tape is caused to run between the winding reel and the cartridge reel in a state where a tension is applied in a longitudinal direction of the magnetic tape and a maximum value of the tension is 0.50 N or more,
- the magnetic tape after running in a state where the tension is applied is wound around the cartridge reel by applying a tension of 0.40 N or less in the longitudinal direction of the magnetic tape,
- the magnetic tape includes a non-magnetic support, and a magnetic layer including a ferromagnetic powder, and
- the number of recesses having an equivalent circle diameter of 0.20 μm to 0.50 μm existing on a surface of the magnetic layer is 10 to 500 per 40 μm×40 μm area.
A magnetic tape,
- which is a magnetic tape used in a magnetic tape device in which the magnetic tape is caused to run between a winding reel and a cartridge reel of a magnetic tape cartridge in a state where a tension is applied in a longitudinal direction of the magnetic tape, a maximum value of the tension being 0.50 N or more, and
- the magnetic tape after running in a state where the tension is applied is wound around the cartridge reel by applying a tension of 0.40 N or less in the longitudinal direction of the magnetic tape, the magnetic tape comprising:
- a non-magnetic support;
- and
- a magnetic layer including a ferromagnetic powder,
- wherein the number of recesses having an equivalent circle diameter of 0.20 μm to 0.50 μm existing on a surface of the magnetic layer is 10 to 500 per 40 μm×40 μm area.
Dependencies are inferred from the claim text.