Dynamic magnetic information storage or retrieval – Record medium – Disk
Reexamination Certificate
2007-01-23
2007-01-23
Wellington, Andrea (Department: 2627)
Dynamic magnetic information storage or retrieval
Record medium
Disk
C428S817000
Reexamination Certificate
active
10813004
ABSTRACT:
A magnetic recording medium is provided while including a recording layer in which magnetic materials are in the shape of a circular cylinder and uniformity and size reduction are achieved simultaneously. The magnetic recording medium includes a recording layer and an electrode layer disposed on a substrate, wherein the recording layer and the electrode layer are disposed in the same plane. The above-described electrode layer is disposed adjacently to the end portion of the plane in which the recording layer on the substrate is disposed. A matrix surrounding magnetic material portions of the above-described recording layer contains alumina as a constituent provided by anodization of aluminum. Alternatively, the matrix surrounding the magnetic material portions of the above-described recording layer contains at least one of Si and Ge or an oxide thereof as a constituent.
REFERENCES:
patent: 4109287 (1978-08-01), Kawai et al.
patent: 4578299 (1986-03-01), Kato et al.
patent: 4588653 (1986-05-01), Wray
patent: 4671978 (1987-06-01), Kato et al.
patent: 4721640 (1988-01-01), Kato et al.
patent: 5085911 (1992-02-01), Kato et al.
patent: 5635269 (1997-06-01), Weir et al.
patent: 6088199 (2000-07-01), Lee et al.
patent: 6468405 (2002-10-01), Rou et al.
patent: 6569294 (2003-05-01), Khazanov et al.
patent: 6602620 (2003-08-01), Kikitsu et al.
patent: 6791797 (2004-09-01), Saito et al.
patent: 6804081 (2004-10-01), Den et al.
patent: 6852431 (2005-02-01), Fukutani et al.
patent: 6891184 (2005-05-01), Imai
patent: 7081303 (2006-07-01), Yasui et al.
patent: 2001/0036563 (2001-11-01), Watanabe et al.
patent: 2003/0001274 (2003-01-01), Den et al.
patent: 2003/0072971 (2003-04-01), Fukutanu et al.
patent: 2003/0170416 (2003-09-01), Saito et al.
patent: 2004/0048092 (2004-03-01), Yasui et al.
patent: 63007517 (1988-01-01), None
patent: 11-200090 (1999-07-01), None
patent: 001-273622 (2001-11-01), None
patent: WO 03-069677 (2003-08-01), None
Den Tohru
Yasui Nobuhiro
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Magee Christopher R.
Wellington Andrea
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