Dynamic magnetic information storage or retrieval – Record medium – Disk
Reexamination Certificate
2007-11-13
2007-11-13
Miller, Brian E. (Department: 2627)
Dynamic magnetic information storage or retrieval
Record medium
Disk
C428S832000, C428S840000
Reexamination Certificate
active
11699707
ABSTRACT:
A perpendicular magnetic recording medium at least comprises a perpendicular magnetic recording layer and a backing layer backing the perpendicular magnetic recording layer. The backing layer has an in-plane magnetization and is formed of a ferrimagnetic material having a compensation temperature in the vicinity of a recording/reproducing temperature in which reproducing of magnetic information is made from the perpendicular magnetic recording layer. A magnetic storage apparatus for recording and reproducing magnetic information using the perpendicular magnetic recording medium is also disclosed.
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Inamura Ryosaku
Shimoda Kazumasa
Sugimoto Toshio
Uzumaki Takuya
Fujitsu Limited
Greer Burns & Crain Ltd.
Miller Brian E.
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