发明名称 MAGNETIZATION DEVICE AND MAGNETIZATION METHOD FOR MAGNETIC DISK
摘要 PROBLEM TO BE SOLVED: To improve the productivity of a magnetic disk. SOLUTION: A magnetic head 41 for magnetizing magnetic layers 13 on projecting parts 21 constituting the fine ruggedness of the magnetic disk 10 and magnetic layers 13 on recessed parts 22 to a prescribed direction and a magnetic head 41 for magnetizing only the magnetic layers 13 on the projecting parts 21 to turn in a reverse direction are separately disposed and the projecting parts 21 and the recessed parts 22 are magnetized by the same process step.
申请公布号 JP2002230748(A) 申请公布日期 2002.08.16
申请号 JP20010027037 申请日期 2001.02.02
申请人 SONY CORP 发明人 KAMOSHITA HIROKO;TANAKA SHOJI;SUZUKI KAZUYA
分类号 G11B5/65;G11B5/73;G11B5/82;G11B5/84;G11B21/10;(IPC1-7):G11B5/84 主分类号 G11B5/65
代理机构 代理人
主权项
地址