Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2005-05-17
2005-05-17
Nakarani, D. S. (Department: 1773)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S690000, C428S690000, C428S690000, C428S690000, C428S690000, C369S013020, C369S013400, C369S013450, C369S013500, C369S013540
Reexamination Certificate
active
06893746
ABSTRACT:
A magnetic recording medium comprises an information-recording film and a ferromagnetic film on a substrate. The information-recording film is composed of, for example, an amorphous ferrimagnetic material having perpendicular magnetization. Further, the ferromagnetic film is composed of a magnetic material which has saturation magnetization larger than that of the information-recording film. Accordingly, the leak magnetic flux from the ferromagnetic film is larger than that from the information-recording film. The magnetic recording medium and a magnetic recording apparatus are obtained, which are excellent in thermal stability and which are preferred to perform super high density recording.
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Awano Hiroyuki
Hieida Harumi
Inaba Nobuyuki
Kirino Fumiyoshi
Koda Tetsunori
Hitachi Maxell Ltd.
Nakarani D. S.
Oliff & Berridg,e PLC
Uhlir Nikolas J.
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