公开(公告)号：US20160240219A1

公开(公告)日：2016-08-18

申请号：US15044529

申请日：2016-02-16

Applicant: SHOWA DENKO K.K.

Inventor： Yoshihiko MARUYAMA ,  Selvaraj AANANDHA ,  Yuan Ai KHOO ,  Satoru NAKAMURA ,  Hiromitsu TANUMA ,  Eishin YAMAKAWA

IPC: G11B5/725 ,  G11B5/64 ,  G11B5/09

CPC classification number: G11B5/725 ,  G11B5/72 ,  G11B5/82

Abstract: A magnetic recording medium which is capable of effectively preventing a surface thereof from being contaminated, and is capable of preventing a contaminant thereon from adhering (being transferred) to a magnetic head, and a magnetic recording and reproducing apparatus including the magnetic recording medium are provided,A carbon protective layer of the magnetic recording medium is nitrided, and as a lubricant a compound A expressed by the following General Formula (1) and a compound B expressed by the following General Formula (2) are mixed and used. R1—C6H4OCH2CH(OH)CH2OCH2—R2—CH2OCH2CH(OH)CH2OH  (1) CH2(OH)CH(OH)CH2OCH2CF2CF2(OCF2CF2CF2)mOCF2CF2CH2OCH2CH(OH)CH2OH  (2)

Abstract translation: 能够有效地防止其表面被污染并能够防止其上的污染物粘附（转印）到磁头的磁记录介质，并且提供包括磁记录介质的磁记录和再现装置 将磁记录介质的碳保护层氮化，作为润滑剂混合使用由以下通式（1）表示的化合物A和由以下通式（2）表示的化合物B. （OH）CH 2 OH（2）R 1 -C 6 H 4 OCH 3 CH（OH）CH 2 OCH 2 -CH 2 OH（1）CH 2（OH）CH（OH）CH 2 OCH 2 CF 2 CF 2（OCF 2 CF 2 CF 2）