Stock material or miscellaneous articles – Magnetic recording component or stock – Thin film media
Reexamination Certificate
2007-07-10
2007-07-10
Chaney, Carol (Department: 1773)
Stock material or miscellaneous articles
Magnetic recording component or stock
Thin film media
C428S847100, C428S847400, C428S847700, C427S131000
Reexamination Certificate
active
10488983
ABSTRACT:
It is a magnetic recording medium for which favorable values for all of reproduced output, noise level and error rate can be obtained, and which is also superior in terms of storage stability. A magnetic recording medium (10), which has a configuration in which a magnetic layer (3) comprised of a maghemite thin film containing cobalt is formed on a tape-shaped substrate (1) comprised of aromatic polyimide, and in which the substrate (1) is 3 to 10 μm in thickness, and 5 to 30 nm in its ten-point average roughness (SRz) of the surface on which the magnetic layer (3) is formed, and the magnetic layer (3) is 10 to 50 nm in thickness, 0.1 to 3.0 nm in center plane average thickness (SRa), and 2,000 to 4,000 Oe (158,000 to 316,000 A/m) in in-plane coercivity, is made.
REFERENCES:
patent: 5723212 (1998-03-01), Kitaori et al.
patent: 6174597 (2001-01-01), Yusu et al.
patent: 6210775 (2001-04-01), Ejiri et al.
patent: 6312785 (2001-11-01), Sato
patent: 6458453 (2002-10-01), Hayashi et al.
patent: 6500551 (2002-12-01), Hashimoto et al.
patent: 6579592 (2003-06-01), Matsubaguchi et al.
patent: 6582815 (2003-06-01), Naoe et al.
patent: 6746786 (2004-06-01), Santoki et al.
patent: 2002/0068193 (2002-06-01), Santoki et al.
patent: 2003/0017365 (2003-01-01), Doushita et al.
patent: 2004/0023066 (2004-02-01), Watase et al.
patent: 2004/0081857 (2004-04-01), Sasaki
patent: 1 089 262 (2001-04-01), None
patent: 1 113 425 (2001-07-01), None
patent: 63-188823 (1988-08-01), None
patent: 11-120535 (1999-04-01), None
patent: 2000-215433 (2000-08-01), None
patent: 2001-176045 (2001-06-01), None
patent: 2001-176050 (2001-06-01), None
patent: 2001-250216 (2001-09-01), None
patent: 2001-283425 (2001-10-01), None
patent: 2001-307319 (2001-11-01), None
patent: 2002-140812 (2002-05-01), None
patent: 2002-183933 (2002-06-01), None
Translation JPO 2002-183933.
Translation JPO 2001-307319.
Translation JPO 11-120535.
Translation JPO 2001-283425.
Chaney Carol
de Falasco Louis
Depke Robert J.
Rockey, Depke, Lyons & Kitzinger LLC.
Sony Corporation
LandOfFree
Magnetic recording medium and method of manufacturing a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetic recording medium and method of manufacturing a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic recording medium and method of manufacturing a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3737579