FujiFilm Assigned Three Patents

Magnetic tape
FujiFilm Corporation, Tokyo, Japan, has been assigned a patent (9,711,174) developed by Kasada, Norihito, Oyanagi, Masahito, Tada, Toshio, and Kitada, Kazuyuki, Minami-ashigara, Japan, for a “magnetic tape and method of manufacturing the same.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Provided is a magnetic tape, which comprises, on a nonmagnetic support, a nonmagnetic layer comprising nonmagnetic powder and binder, and on the nonmagnetic layer, a magnetic layer comprising ferromagnetic powder and binder, wherein a total thickness of the magnetic tape is less than or equal to 4.80 .mu.m, at least the magnetic layer comprises one or more components selected from the group consisting of a fatty acid and a fatty acid amide, and a C–H derived carbon, C, concentration calculated from a C–H peak area ratio in a C1s spectrum obtained by X-ray photoelectron spectroscopy conducted at a photoelectron take-off angle of 10 degrees on a surface on the magnetic layer side of the magnetic tape is greater than or equal to 45 atom %.“

The patent application was filed on December 24, 2015 (14/757,555).

Magnetic tape
FujiFilm Corporation, Tokyo, Japan, has been assigned a patent (9,704,527) developed by Kasada, Norihito, Kanagawa, Japan, for a “magnetic tape and method of manufacturing the same.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The magnetic tape has on one surface of a nonmagnetic support a magnetic layer containing ferromagnetic powder and binder, and on the other surface of the nonmagnetic support, a backcoat layer containing nonmagnetic powder and binder, wherein the total thickness of the magnetic tape is less than or equal to 4.80 .mu.m, the backcoat layer contains one or more components selected from the group consisting of a fatty acid and a fatty acid amide, and a C–H derived carbon, C, concentration calculated from a C–H peak area ratio in a C1s spectrum obtained by X-ray photoelectron spectroscopy conducted at a photoelectron take-off angle of 10 degrees on a surface on the backcoat layer side of the magnetic tape ranges from 35 to 60 atom %.“

The patent application was filed on February 24, 2016 (15/052,115).

Magnetic tape
FujiFilm Corporation, Tokyo, Japan, has been assigned a patent (9,704,525) developed by Kasada, Norihito, Minami-ashigara, Japan, for a “magnetic tape.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The magnetic tape includes a magnetic layer containing ferromagnetic hexagonal ferrite powder, abrasive, and binder on a nonmagnetic support, wherein the ferromagnetic hexagonal ferrite powder exhibits an activation volume of less than or equal to 1,800 nm.sup.3, and inclination, cos .theta., of the ferromagnetic hexagonal ferrite powder relative to a surface of the magnetic layer as determined by sectional observation by a scanning electron transmission microscope is greater than or equal to 0.85 but less than or equal to 1.00.“

The patent application was filed on March 17, 2016 (15/072,550).