Invention Grant
- Patent Title: Magnetic recording medium and magnetic recording medium manufacturing method
- Patent Title (中): 磁记录介质和磁记录介质的制造方法
-
Application No.: US13133941Application Date: 2009-12-09
-
Publication No.: US08795790B2Publication Date: 2014-08-05
- Inventor: Yoshiaki Sonobe , Akira Shimada , Tsuyoshi Ozawa , Masanori Aniya
- Applicant: Yoshiaki Sonobe , Akira Shimada , Tsuyoshi Ozawa , Masanori Aniya
- Applicant Address: SG Singapore
- Assignee: WD Media (Singapore) Pte. Ltd.
- Current Assignee: WD Media (Singapore) Pte. Ltd.
- Current Assignee Address: SG Singapore
- Priority: JP2008-313287 20081209; JP2009-087765 20090331
- International Application: PCT/JP2009/070624 WO 20091209
- International Announcement: WO2010/067830 WO 20100617
- Main IPC: C23C14/48
- IPC: C23C14/48 ; C23C14/58 ; C23C14/04 ; B05D5/08 ; B05D5/02

Abstract:
[Problem] An object is to provide a magnetic recording medium with improved HDI characteristics, such as impact resistance, and its manufacturing method.[Solution] A typical structure of a magnetic recording medium 100 according to the present invention includes, on a base, at least a magnetic recording layer 122, a protective layer 126, and a lubricating layer 128, wherein the magnetic recording layer 122 includes, in an in-plane direction, a magnetic recording part 136 configured of a magnetic material and a non-recording part 134 magnetically separating the magnetic recording part 136, and a surface corresponding to the non-recording part 134 protuberates more than a surface corresponding to the magnetic recording part 136.
Public/Granted literature
- US20120170152A1 MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING MEDIUM MANUFACTURING METHOD Public/Granted day:2012-07-05
Information query
IPC分类: