FujiFilm Assigned Six Patents

Magnetic tape having characterized magnetic layer, tape cartridge, and tape device
FujiFilm Corporation, Tokyo, Japan, has been assigned a patent (12334125) developed by Kasada; Norihito, Minamiashigara, Japan, for “magnetic tape having characterized magnetic layer, magnetic tape cartridge, and magnetic tape device.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Provided is a magnetic tape, in which, in an environment with a temperature of 23° C. and a relative humidity of 50%, an AlFeSil abrasion value.sub.45° of a surface of the magnetic layer, which is measured at a tilt angle of 45° of an AlFeSil square bar, is 20 μm or more and 50 μm or less, and standard deviation of AlFeSil abrasion values of the surface of the magnetic layer, which are respectively measured at tilt angles of 0°, 15°, 30°, and 45° of the AlFeSil square bar, is 30 μm or less. The tilt angle of the AlFeSil square bar is an angle formed by a longitudinal direction of the AlFeSil square bar and a width direction of the magnetic tape. The magnetic tape includes a polyethylene naphthalate support having a Young’s modulus in a width direction of 10000 MPa or more.”

The patent application was filed on 2024-05-31 (18/680257).

Magnetic tape having characterized magnetic layer, tape cartridge, and tape apparatus
FujiFilm Corporation, Tokyo, Japan, has been assigned a patent (12315540) developed by Kasada; Norihito, Minamiashigara, Japan, for “magnetic tape having characterized magnetic layer, magnetic tape cartridge, and magnetic tape apparatus.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The magnetic tape includes a non-magnetic support, and a magnetic layer containing a ferromagnetic powder. One or more components selected from the group consisting of a fatty acid and a fatty acid amide are included in a portion on the non-magnetic support on a magnetic layer side, a C—H derived C concentration calculated from a C—H peak surface area ratio of C1s spectra obtained by X-ray photoelectron spectroscopy performed on a surface of the magnetic layer at a photoelectron take-off angle of 10 degrees is 50 at % or more, and standard deviation σ of the C—H derived C concentration in a width direction of the surface of the magnetic layer is 2.0 at % or less.”

The patent application was filed on 2023-12-13 (18/538626).

Magnetic tape having characterized magnetic layer, tape cartridge, and tape apparatus
FujiFilm Corporation, Tokyo, Japan, has been assigned a patent (12300287) developed by Kasada; Norihito, Minamiashigara, Japan, for “magnetic tape having characterized magnetic layer, magnetic tape cartridge, and magnetic tape apparatus.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Provided is a magnetic tape, in which, in an environment of a temperature of 32° C. and a relative humidity of 80%, a frictional force F.sub.45° on a magnetic layer surface with respect to an LTO8 head measured at a head tilt angle of 45° is 4 gf or more and 15 gf or less, and standard deviation of a frictional force F on the magnetic layer surface with respect to the LTO8 head measured at each of head tilt angles of 0°, 15°, 30°, and 45° is 10 gf or less. A magnetic tape cartridge and a magnetic tape apparatus include the magnetic tape.”

The patent application was filed on 2024-01-25 (18/422850).

Magnetic tape having characterized magnetic layer, tape cartridge, and tape apparatus
FujiFilm Corporation, Tokyo, Japan, has been assigned a patent (12300276) developed by Kasada; Norihito, Minamiashigara, Japan, for “magnetic tape having characterized magnetic layer, magnetic tape cartridge, and magnetic tape apparatus.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Provided is a magnetic tape, in which, in an environment of a temperature of 23° C. and a relative humidity of 50%, an AlFeSil abrasion value.sub.45° of a magnetic layer surface measured at a tilt angle of 45° of an AlFeSil square bar is 20 μm or more and 50 μm or less, standard deviation of an AlFeSil abrasion value of the magnetic layer surface measured at each of tilt angles of 0°, 15°, 30°, and 45° of the AlFeSil square bar is 30 μm or less. The tilt angle of the AlFeSil square bar is an angle formed by a longitudinal direction of the AlFeSil square bar and a width direction of the magnetic tape. A magnetic tape cartridge and a magnetic tape apparatus include the magnetic tape.”

The patent application was filed on 2024-01-24 (18/421433).

Magnetic tape cartridge and label for magnetic tape cartridge identification
FujiFilm Corporation, Tokyo, Japan, has been assigned a patent (12293777) developed by Osada; Yoshihiko, Kanagawa, Japan, for “magnetic tape cartridge and label for magnetic tape cartridge identification.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A magnetic tape cartridge includes a label provided on a front surface of a case, the label includes a coat layer that is formed on a front surface of a substrate attached to the case and scatters light reflected by the label with control of a surface shape and on which an identifier for identifying the magnetic tape cartridge is printed, and with the control of the surface shape, the coat layer has an average period of surface protrusions is equal to or smaller than 400 μm.”

The patent application was filed on 2024-02-14 (18/442024).

Storage case and package
FujiFilm Corporation, Tokyo, Japan, has been assigned a patent (12288572) developed by Sumiya; Yosuke, Kanagawa, Japan, for “storage case and package.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A storage case includes a support surface that supports side surfaces of a plurality of magnetic tape cartridges, and the support surface has a first surface, and a second surface positioned closer to the side surfaces than the first surface.”

The patent application was filed on 2022-02-28 (17/683263).