公开(公告)号：US10199064B2

公开(公告)日：2019-02-05

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: G11B5/72 ,  G11B5/725 ,  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)