Magnetic tape having characterized magnetic layer and hexagonal ferrite powder

N Kasada - US Patent 10,477,072, 2019 - Google Patents
A magnetic tape is provided in which ferromagnetic powder included in a magnetic layer is
ferromagnetic hexagonal ferrite powder having an activation volume less than or equal to …

Magnetic recording medium having characterized magnetic layer and magnetic recording and reproducing device

E Ozawa, N Kasada - US Patent 10,978,105, 2021 - Google Patents
Provided are a magnetic recording medium, in which a magnetic layer includes a
ferromagnetic hexagonal ferrite powder, a binding agent, and an oxide abrasive, an intensity …

Magnetic tape device, magnetic reproducing method, and head tracking servo method

N Kasada, E Ozawa - US Patent 10,490,220, 2019 - Google Patents
Provided is a magnetic tape device in which a magnetic tape transportation speed is equal
to or lower than 18 m/sec, Ra measured regarding a surface of a magnetic layer of a …

Magnetic recording medium having characterized magnetic layer and magnetic recording and reproducing device

N Kasada, E Ozawa - US Patent 10,854,234, 2020 - Google Patents
Provided are a magnetic recording medium, in which a magnetic layer includes
ferromagnetic hexagonal ferrite powder, a binding agent, and an oxide abrasive, an intensity …

Magnetic recording medium having characterized magnetic layer

N Kasada, T Tada, E Ozawa, T Kurokawa - US Patent 10,854,227, 2020 - Google Patents
The magnetic recording medium includes a non-magnetic support and a magnetic layer
which contains ferromagnetic powder and a binder, in which the ferromagnetic powder is …

Magnetic recording medium having characterized magnetic layer and magnetic recording and reproducing device

E Ozawa, N Kasada - US Patent 10,854,233, 2020 - Google Patents
Provided are a magnetic recording medium, in which a magnetic layer includes a
ferromagnetic hexagonal ferrite powder, a binding agent, an oxide abrasive, an intensity …

Magnetic recording medium having characterized magnetic layer and magnetic recording and reproducing device

N Kasada, E Ozawa - US Patent 10,854,231, 2020 - Google Patents
Provided are a magnetic recording medium, in which a magnetic layer includes
ferromagnetic hexagonal ferrite powder, a binding agent, and an oxide abrasive, an intensity …

Magnetic tape having characterized magnetic layer

T Tada, N Kasada, E Ozawa, T Kurokawa - US Patent 10,839,850, 2020 - Google Patents
Provided is a magnetic tape in which an Ra measured regarding a surface of a magnetic
layer is equal to or smaller than 1.8 nm, Int (110)/Int (114) of a hexagonal ferrite crystal …

Magnetic tape device and magnetic reproducting method employing TMR head and tape with characterized magnetic layer

N Kasada, E Ozawa - US Patent 10,573,338, 2020 - Google Patents
A magnetic tape device includes a magnetic tape; and a reproducing head, in which the
reproducing head is a Tunneling Magnetoresistive (TMR) head, the center line average …

Magnetic tape having a characterized magnetic layer and method of manufacturing the same

M Oyanagi, N Kasada, T Tada, T Sugiyama - US Patent 10,910,009, 2021 - Google Patents
The magnetic tape has a magnetic layer containing ferro magnetic powder and binder on a
nonmagnetic support, wherein the centerline average surface roughness Ra as measured …