Stock material or miscellaneous articles – Magnetic recording component or stock – Thin film media
Reexamination Certificate
2006-08-01
2006-08-01
Rickman, Holly (Department: 1773)
Stock material or miscellaneous articles
Magnetic recording component or stock
Thin film media
C428S831200
Reexamination Certificate
active
07083870
ABSTRACT:
A magnetic recording medium includes a nonmagnetic substrate on which is provided at least a soft magnetic under-film, an orientation control film that controls an orientation of a film directly above, a perpendicular magnetic recording film having an axis of easy magnetization oriented to be mainly perpendicular to the substrate and a protective film, wherein the orientation control film has a material composition forming a C11bstructure. The magnetic recording medium is manufactured by a method including carrying out, in order, at least a step of forming a soft magnetic under-film on a nonmagnetic substrate, a step of forming an orientation control film that controls an orientation of a film directly above, a step of forming a perpendicular magnetic recording film having an axis of easy magnetization oriented to be mainly perpendicular to the substrate, and a step of forming a protective film. A magnetic recording and reproduction apparatus includes the magnetic recording medium and a magnetic head that records and reproduces information on the magnetic recording medium, wherein the magnetic head is a magnetic monopole head.
REFERENCES:
patent: 5738927 (1998-04-01), Nakamura et al.
patent: 6686070 (2004-02-01), Futamoto et al.
patent: 6709768 (2004-03-01), Takahashi et al.
patent: 6846583 (2005-01-01), Inaba et al.
patent: 2002/0058161 (2002-05-01), Yamamoto et al.
patent: 2004/0062953 (2004-04-01), Futamoto et al.
patent: 63-211117 (1988-09-01), None
patent: 01263910 (1989-10-01), None
patent: 08-180360 (1996-07-01), None
patent: 2669529 (1997-07-01), None
patent: WO 02/39433 (2002-05-01), None
Machine translation of JP 2000-339659, Aug. 2000.
Hikosaka Takashi
Iwasaki Takeshi
Sakai Hiroshi
Sakawaki Akira
Shimizu Kenji
Kabushiki Kaisha Toshiba
Rickman Holly
Showa Denko K. K.
Sughrue & Mion, PLLC
LandOfFree
Magnetic recording medium, method of manufacturing the same,... 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, method of manufacturing the same,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic recording medium, method of manufacturing the same,... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3679267