Title:
RECORDING MEDIUM, RECORDING AND REPRODUCING DEVICE, AND RECORDING AND REPRODUCING METHOD
Document Type and Number:
Japanese Patent JP2006260713
Kind Code:
A
Abstract:
To provide a recording medium which enables authentication.
A magnetic recording layer, which defines a magnetic recording area, is formed on the surface of a substrate of a magnetic recording medium, and a magnetic deficiency part, to which information can not magnetically be recorded, is formed in the magnetic recording area.
Inventors:
SAKURAI MASATOSHI
OKINO TAKASHI
OKINO TAKASHI
Application Number:
JP2005079581A
Publication Date:
September 28, 2006
Filing Date:
March 18, 2005
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
G11B20/12; G11B20/10; G11B20/18
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
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