Patent Number: 8,795,790

Title: Magnetic recording medium and magnetic recording medium manufacturing method

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.

Inventors: Sonobe; Yoshiaki (Tokyo, JP), Shimada; Akira (Tokyo, JP), Ozawa; Tsuyoshi (Tokyo, JP), Aniya; Masanori (Tokyo, JP)

Assignee: WD Media (Singapore) Pte. Ltd.

International Classification: C23C 14/48 (20060101); B05D 5/02 (20060101); B05D 5/08 (20060101); C23C 14/58 (20060101); C23C 14/04 (20060101)

Expiration Date: 8/05/12018