| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic recording medium which is improved in an SN ratio of a read signal of a servo signal and reproducing output in reproducing data recorded in high density, and also excellent in the SN ratio of reproducing signal. SOLUTION: In a magnetic recording medium, a magnetic layer containing at least a hexagonal ferrite magnetic powder and a bonding agent has a servo band SB1 where a servo signal SS1 for performing tracking control of a magnetic head H is written, and a data band DB1 where data is recorded; wherein the servo signal SS1 is written on the servo band SB1 magnetized in any one direction of longitudinal directions with being magnetized in a reverse direction for the any one direction. Furthermore, an average plate diameter of a powder particle the hexagonal ferrite magnetic powder is made 15 nm to 40 nm, an average plate thickness thereof is made 4 nm to 15 nm, and a coercivity Hc thereof is made 140 kA/m to 320 kA/m. COPYRIGHT: (C)2005,JPO&NCIPI |
