ALEXANDRIA, Va., June 12 -- United States Patent no. 12,300,276, issued on May 13, was assigned to FUJIFILM Corp. (Tokyo).
"Magnetic tape having characterized magnetic layer, magnetic tape cartridge, and magnetic tape apparatus" was invented by Norihito Kasada (Minamiashigara, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a magnetic tape, in which, in an environment of a temperature of 23deg C. and a relative humidity of 50%, an AlFeSil abrasion value45deg of a magnetic layer surface measured at a tilt angle of 45deg of an AlFeSil square bar is 20 micro metre or more and 50 micro metre or less, standard deviation of an AlFeSil abrasion value of the magnetic layer surface measured at each o...