发明授权
US06469848B1 Method and apparatus for manufacturing a magnetic recording medium with pre-format recording signals transferred and recorded by using a master information carrier 有权
用于制造具有通过使用主信息载体传送和记录的预格式记录信号的磁记录介质的方法和装置

  • 专利标题: Method and apparatus for manufacturing a magnetic recording medium with pre-format recording signals transferred and recorded by using a master information carrier
  • 专利标题(中): 用于制造具有通过使用主信息载体传送和记录的预格式记录信号的磁记录介质的方法和装置
  • 申请号: US09720119
    申请日: 2001-02-27
  • 公开(公告)号: US06469848B1
    公开(公告)日: 2002-10-22
  • 发明人: Taizo HamadaHideyuki Hashi
  • 申请人: Taizo HamadaHideyuki Hashi
  • 优先权: JP11-120515 19990427
  • 主分类号: G11B586
  • IPC分类号: G11B586
Method and apparatus for manufacturing a magnetic recording medium with pre-format recording signals transferred and recorded by using a master information carrier
摘要:
In the recording method of the present invention, the surface of a master information carrier facing a recording medium becomes slightly concave in its center when the master information carrier is placed upon and brought into tight contact with the recording medium, and information signals are transferred and recorded onto the recording medium. The recording method of the present invention can be widely used for producing disk-type recording media with a hole such as magnetic disks, photomagnetic disks and optical disks. The recording method of the present invention achieves quick and productive production of a very flat and smooth recording medium that is free of fine dust. Furthermore, high-density information signals can be recorded evenly and firmly on the whole surface of the magnetic surface of the magnetic recording medium.
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