Magnetic recording disk with overcoat thickness gradient between

Details Magnetic recording disk with overcoat thickness gradient between Magnetic recording disk with overcoat thickness gradient between

1995-04-24

1996-05-28

Resan, Stevan A.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428156, 428 666, 428336, 428694TP, 428694TC, 428900, 360135, G11B 582

Patent

active

055209815

ABSTRACT:
An improvement in a magnetic recording disc having a protective overcoat is described. The overcoat extends between an inner-diameter landing zone and a data zone and has a thickness in the landing zone of at least 135 .ANG. and a thickness in the data zone of less than 90 .ANG..

REFERENCES:
patent: 4671978 (1987-06-01), Kato et al.
patent: 4882197 (1989-11-01), Matsudaira et al.
patent: 5045165 (1991-09-01), Yamashita
patent: 5087482 (1992-02-01), Kawai et al.
patent: 5167096 (1992-12-01), Eltoukhy et al.
patent: 5227211 (1993-07-01), Eltoukhy et al.
patent: 5324593 (1994-06-01), Lal et al.
Hsiao-chu, T., and Bogy, D. B., "Characterization of Diamondlike Carbon Films and Their Application as Overcoats on Thin-Film Media for Magnetic Recording," J. Vac. Sci. Technol. 5(6):3287-3312 (1987).
Marchon, B., et al., "Raman and Resistivity Investigations of Carbon Overcoats of Thin-Film Media: Correlations with Tribological Properties,", J. Appl. Phys. 69(8):5748-5750 (1991).
Marchon, B., et al., "Structure and Mechanical Properties of Hydrogenated Carbon Films Prepared by Magnetron Sputtering," Transactions On Magnetics 27(6):5160-5162 (1991).

Affiliated with

Also associated with

Rating

Magnetic recording disk with overcoat thickness gradient between 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 disk with overcoat thickness gradient between, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic recording disk with overcoat thickness gradient between will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-785319