Title:
磁気記録媒体及びその製造方法
Document Type and Number:
Japanese Patent JP5264209
Kind Code:
B2
Abstract:
Embodiments of the present invention help to produce discrete track media and bit patterned media having both excellent recording and reproducing performance and reliability. According to one embodiment, a manufacturing method forms a nonmagnetic layer mainly composed of the same element as a nonmagnetic element contained in magnetic recording layers and on the magnetic recording layers and a mask layer having apertures for forming more concentrated parts of the nonmagnetic element in the magnetic recording layers on the nonmagnetic layer. The method implants ions of the nonmagnetic element through the nonmagnetic layer masked by the mask layer to form the more concentrated parts of the nonmagnetic element in the magnetic recording layer.
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Inventors:
Hinokami Tatsuya
Hiroshi Kanai
Toshinori Ohno
Hiroyuki Suzuki
Hiroshi Inaba
Hiroshi Kanai
Toshinori Ohno
Hiroyuki Suzuki
Hiroshi Inaba
Application Number:
JP2008041615A
Publication Date:
August 14, 2013
Filing Date:
February 22, 2008
Export Citation:
Assignee:
H.G. Esteneetherland Bee Buoy
International Classes:
G11B5/855; G11B5/65; G11B5/66
Domestic Patent References:
| JP2007226862A | ||||
| JP2006318648A | ||||
| JP2006031756A | ||||
| JP2006019000A | ||||
| JP2004005915A | ||||
| JP2002288813A | ||||
| JP2000268340A | ||||
| JP8096340A |
Attorney, Agent or Firm:
Yusuke Hiraki
Toshiaki Watanabe
Toshiaki Watanabe