公开(公告)号：EP1600956A4

公开(公告)日：2008-05-21

申请号：EP04716374

申请日：2004-03-02

申请人： TDK CORP

发明人： HATTORI KAZUHIRO ,  TAKAI MITSURU ,  SUWA TAKAHIRO

IPC分类号： G11B5/82 ,  G11B5/84 ,  G11B5/85 ,  G11B5/851 ,  G11B5/855

CPC分类号： G11B5/855 ,  B82Y10/00 ,  G11B5/74 ,  G11B5/743 ,  G11B5/851 ,  G11B11/10582

摘要： A method of producing a magnetic recording medium and a production device therefore capable of producing a discrete type magnetic recording medium efficiently with the deterioration or the like of divided recording elements being prevented positively. The production device (40) for a magnetic recording medium comprises a recording layer processing means (42) for dividing a continuous recording layer into many divided recording elements by forming at plane-direction fine intervals many grooves in the intermediate element (10) of a magnetic recording medium formed with the continuous recording layer, a non-magnetic element filling means (48) for filling a non-magnetic element into grooves between divided recording elements, a flattening means (50) for flattening the surfaces of divided recording elements and a non-magnetic element, a protection layer forming means (52) for forming protection layers on divided recording elements and a non-magnetic element, and a vacuum retaining means (56) for housing the recording layer processing means (42), the non-magnetic element filling means (48), the flattening means (50) and the protection layer forming means (52) to retain the surrounding of the intermediate element (10) in a vacuum condition.

公开(公告)号：EP0935011A4

公开(公告)日：2003-07-02

申请号：EP97950416

申请日：1997-12-26

申请人： TDK CORP

发明人： TAKAI MITSURU ,  MIYAZAKI SHINJI ,  UEDA KUNIHIRO ,  KANAZAWA HIROMICHI

IPC分类号： B05D7/24 ,  C08F2/46 ,  C23C14/12 ,  C23C14/56

CPC分类号： B05D1/62 ,  C23C14/12 ,  C23C14/562

摘要： An electrode coated with a polymeric material at a percentage of covering of 50 to 100 % is used as the electrode facing that side of a continuous substrate on which a film is to be formed by plasma polymerization. Plasma polymerization is conducted under the conditions of an operating pressure of 10-3 to 1 Torr to form a film on the substrate. Consequently, the method produces an excellent effect of remarkably suppressing abnormal discharge during the film formation by plasma polymerization, thus making it possible to stably form a film by plasma polymerization over long and thus improve the yield of the product. The film formed by the plasma polymerization has extremely good properties.