Magnetic disk apparatus having magnetic head with pre-erase gap

Magnetic disk device having an improved seek control

Magnetic disk device with dummy write function

Magnetic disk device with dummy write function

Magnetic disk drive

Magnetic disk drive

Magnetic disk drive unit with complex magnetic head of variable

Magnetic disk unit

Magnetic head device and magnetic recording device

Magnetic head device, rotary head device, magnetic tape...

Magnetic head drive apparatus which uses a common current source

Magnetic head switching matrix with bi-directional current capab

Magnetic head switching system

Magnetic head with read and write coils and a circuit for interr

Magnetic head with thin film components

Magnetic read/write circuit

Magnetic record/reproduction apparatus of a stationary head type

Magnetic recording and playback apparatus

Magnetic recording and playback apparatus

Magnetic recording and playback apparatus