Patent ID: 6930846

Claim:
A magnetic recording apparatus comprising: a magnetic head mounting single pole head having a main role and an return pole; a magnetic recording medium having a magnetic recording layer in which a magnetic pattern is recorded using the single pole head; a motor for rotating the magnetic recording medium; and a recording driver for supplying a recording current to the single role head, wherein the current waveform of the recording current supplied from the recording driver to the single pole head includes a first pulse exceeding a current amplitude at which the magnetic recording medium can be recorded, and a second pulse of the opposite polarity to that of the first pulse, the second pulse exceeding the current amplitude at which the magnetic recording medium can be recorded, wherein the current value between the first and second pulses is smaller than the recordable current amplitude, wherein a relationship T>W>T−WB/v is satisfied, where W is the time in which the first and second pulses exceed the current amplitude at which the magnetic recording medium can be recorded, T is the time length of the recorded pattern, v is a relative transport speed of the magnetic head in the track direction of the magnetic recording medium, and WB is a write bubble size.