FujiFilm Assigned Eight Patents

Servo pattern recording device, magnetic tape, cartridge, drive, system, detection device, servo pattern recording method, and manufacturing method of magnetic tape
FujiFilm Corporation, Tokyo, Japan, has been assigned a patent (12176014) developed by Nakao; Toru, Kaneko; Tetsuya, and Akano; Yoichi, Kanagawa, Japan, for “servo pattern recording device, magnetic tape, magnetic tape cartridge, magnetic tape drive, magnetic tape system, detection device, servo pattern recording method, and manufacturing method of magnetic tape.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A first straight line region and a second straight line region of the straight line region pair are inclined in opposite directions with respect to a first imaginary straight line. The first straight line region has a steeper inclined angle with respect to the first imaginary straight line than the second straight line region. Positions of both ends of the first straight line region and positions of both ends of the second straight line region are aligned in a direction corresponding to a width direction of a magnetic tape. A plurality of gap patterns deviate from each other by a predetermined interval in a direction corresponding to a longitudinal direction of the magnetic tape, between the gap patterns adjacent to each other along the direction corresponding to the width direction of the magnetic tape. A substrate is inclined with respect to the first imaginary straight line.”

The patent application was filed on 2023-12-29 (18/400011).

Magnetic tape cartridge including storage medium in which identifier reading condition information is stored
FujiFilm Corporation, Tokyo, Japan, has been assigned a patent (12176003) developed by Osada; Yoshihiko, Kanagawa, Japan, for a “magnetic tape cartridge including a storage medium in which identifier reading condition information is stored.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A magnetic tape cartridge includes a case on which an identifier is displayed, and a storage medium in which reading condition information that is information regarding a condition for reading the identifier is stored. The magnetic tape cartridge can be part of a cartridge management system, a reading method, and a non-transitory storage medium storing a program.”

The patent application was filed on 2023-02-22 (18/172355).

Magnetic recording medium having characterized magnetic layer, cartridge, and magnetic recording and reproducing device
FujiFilm Corporation, Tokyo, Japan, has been assigned a patent (12159657) developed by Ozawa; Eiki, and Fujimoto; Takashi, Minamiashigara, Japan, for “magnetic recording medium having characterized magnetic layer, magnetic tape cartridge, and magnetic recording and reproducing device.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Provided are a magnetic recording medium including a non-magnetic support, and a magnetic layer including a ferromagnetic powder. The ferromagnetic powder is an ε-iron oxide powder, and an intensity ratio (Int1/Int2) of diffraction intensities obtained by an X-ray diffraction analysis of the magnetic layer using an In-Plane method after the magnetic layer is pressed at a pressure of 70 atm is 1.0 or more and 6.5 or less, a magnetic tape cartridge and a magnetic recording and reproducing device each including the magnetic recording medium.”

The patent application was filed on 2023-08-24 (18/455273).

Package and packaging method that facilitate packaging work of magnetic tape cartridge or removing work of packaging member
FujiFilm Corporation, Tokyo, Japan, has been assigned a patent (12131751) developed by Osada; Yoshihiko, Kanagawa, Japan, for “package and packaging method that facilitate packaging work of a magnetic tape cartridge or removing work of a packaging member.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A package includes a magnetic tape cartridge that has a case with an identifier displayed on a front surface, a storage member that has an opening portion, through which the magnetic tape cartridge is put in and out, and in which the magnetic tape cartridge is stored in a state in which the identifier is readable, and a packaging member that covers at least the opening portion of the storage member.”

The patent application was filed on 2023-03-08 (18/180150).

Magnetic tape cartridge, drive, tension control method, method of handling magnetic tape, and program
FujiFilm Corporation, Tokyo, Japan, has been assigned a patent (12112770) developed by Koike; Keisuke, and Ishikawa; Ren, Kanagawa, Japan, for “magnetic tape cartridge, magnetic tape drive, tension control method, method of handling magnetic tape, and program.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A magnetic tape cartridge includes a magnetic tape wound around a reel, in which the magnetic tape has a first region, which is a predetermined region influenced by a width change of the magnetic tape accompanied by deformation of the reel due to winding of the magnetic tape, and a second region, which is a region on an outer peripheral side of the reel with respect to the first region, and regarding a degree of elongation in a longitudinal direction of the magnetic tape, the degree of the first region is equal to or larger than the degree of the second region.”

The patent application was filed on 2023-07-11 (18/349964).

Magnetic tape with particular surface characteristics, cartridge, and magnetic tape apparatus
FujiFilm Corporation, Tokyo, Japan, has been assigned a patent (12106789) developed by Yamasaki; Nagisa, Kasada; Norihito, and Murata; Yuto, Minamiashigara, Japan, for “magnetic tape with particular surface characteristics, 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, and a magnetic tape cartridge and a magnetic tape apparatus include the magnetic tape. The number of recesses existing on a surface of the magnetic layer and having an equivalent circle diameter of 0.15 μm or more and 0.25 μm or less is 100 or more and 2500 or less per an area of 40 μm×40 μm. Standard deviation σ of the number of the recesses in a width direction of the surface of the magnetic layer is 100 or less.”

The patent application was filed on 2023-04-10 (18/298084).

Magnetic tape device comprising characteristic magnetic head and characteristic medium
FujiFilm Corporation, Tokyo, Japan, has been assigned a patent (12087337) developed by Kasada; Norihito, Minamiashigara, Japan, for “magnetic tape device comprising a characteristic magnetic head and a characteristic medium.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A magnetic tape device. The angle θ formed by the axis of the element array of the magnetic head with respect to a width direction of the magnetic tape is changed during running of the magnetic tape in the magnetic tape device. In a case where a maximum value of an absolute value of a difference between a servo band spacing obtained before storage in a predetermined environment and a servo band spacing obtained after storage in the environment for a storage time T is defined as A, and T is set to a plurality of predetermined times, a medium life calculated by a linear function of A and a logarithm log.sub.e T of T, that are derived from a value of A and a value of the logarithm log.sub.e T of T obtained for each T is 5 years or longer.”

The patent application was filed on 2022-07-25 (17/872651).

Magnetic tape, cartridge, and device
FujiFilm Corporation, Tokyo, Japan, has been assigned a patent (12080322) developed by Kaneko; Tetsuya, Minamiashigara, Japan, for “magnetic tape, magnetic tape cartridge, and magnetic tape device.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A magnetic tape including a timing-based servo pattern, in which the magnetic tape is used in a magnetic tape device in which a total number of data tracks is 8705 or more in conversion of a magnetic tape having a width of ½ inches, and ΔPNL of the timing-based servo pattern is 10.0% or less of a track pitch. A magnetic tape cartridge including the magnetic tape, and a magnetic tape device including a magnetic tape, in which a total number of data tracks is 8705 or more in conversion of a magnetic tape having a width of ½ inches, the magnetic tape includes a timing-based servo pattern, and ΔPNL of the timing-based servo pattern is 10.0% or less of a track pitch are provided. The ΔPNL indicates an amount of deviation of the timing-based servo pattern from linearity.”

The patent application was filed on 2023-03-28 (18/191354).