Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2005-10-18
2005-10-18
Bernatz, Kevin M. (Department: 1773)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S690000
Reexamination Certificate
active
06955857
ABSTRACT:
A magnetic recording medium of the perpendicular type, for a disc drive. The magnetic recording material includes a Cobalt alloy layer interspersed with a noble metal layer. The initial graded material is paramagnetic to increase to the magnetic properties of perpendicular recording media into increase the signal to noise ratio. The final recording layer has 8-20 alternating multilayer of the Cobalt alloy and a noble metal.
REFERENCES:
patent: 4103315 (1978-07-01), Hempstead et al.
patent: 4210946 (1980-07-01), Iwasaki et al.
patent: 5051288 (1991-09-01), Ahlert et al.
patent: 5587235 (1996-12-01), Suzuki et al.
patent: 5604030 (1997-02-01), Yamane et al.
patent: 5726838 (1998-03-01), Soeya et al.
patent: 5750270 (1998-05-01), Tang et al.
patent: 5834085 (1998-11-01), Lairson et al.
patent: 6139950 (2000-10-01), Wu et al.
patent: 6156422 (2000-12-01), Wu et al.
patent: 6207269 (2001-03-01), Wu et al.
patent: 6212047 (2001-04-01), Payne et al.
patent: 6218003 (2001-04-01), Wu et al.
patent: 6221481 (2001-04-01), Wu et al.
patent: 6238780 (2001-05-01), Wu et al.
patent: 6238809 (2001-05-01), Wu et al.
patent: 6280813 (2001-08-01), Carey et al.
patent: 6468670 (2002-10-01), Ikeda et al.
patent: 2001/0051287 (2001-12-01), Kikitsu et al.
patent: 2002/0192506 (2002-12-01), Coffey et al.
L. Wu et al., “Medium noise properties of Co/Pd multilayer films for perpendicular magnetic recording”,Journal of Magnetism and Magnetic Materials 193; (1999) pp. 89-92; Publisher—Elsevier; JAPAN.
Y. Ochiai et al.; “Co/Pt and Co/Pd Ultrathin Multilayered Films as New Magneto-Optical Recording Materials”;IEEE Transactions on Magnetics, vol. 25, No. 5. p. 3755-3757; Sep. 1989; JAPAN.
P.F. Carcia; “Perpendicular magnetic anisotropy in Pd/Co and Pt/Co thin-film layered structures”Journal of Applied Physics, vol. 63, No. 10, p. 5066-5073, May 15, 1988; American Institute of Physics.
Takano et al.; “Co1-xCrx/Pt multilayers as perpendicular recording media”Journal of Applied Physics, vol. 87, No. 9, p. 6364-6366, May 1, 2000, American Institute of Physics.
Kubota Yukiko
Weller Dieter
Wu Mei-Ling
Bernatz Kevin M.
Buchanan & Ingersoll PC
Carleton Dennis M.
Seagate Technology LLC
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