197675 ⎘
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor; Special dispositions or recording techniques; Transducing means or record carriers including or interacting with each other through interposition of, a physically controllable magnetic flux masking or focusing element switchable at least locally between two different physical states, e.g. magnetic and non-magnetic
Sub-classes:Magnetic head and magnetic recording device with stacked body material configurations
#2Heat-assisted magnetic recording method using eddy current and head for heat-assisted magnetic recording
#3Ultrafast pulse field source utilizing optically induced magnetic transformation
#4Data storage device using single-layer multi-level magnetic recording