Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier
Patent
1995-01-19
1997-06-03
Kiliman, Leszek
Stock material or miscellaneous articles
Circular sheet or circular blank
Recording medium or carrier
428 656, 428 657, 428336, 428694T, 428694SG, 428694TS, 428694NF, 428694TC, 428694TR, 428698, 428704, 428900, 427128, 427129, 427130, 427131, 427132, 369272, 369277, 369283, 360135, G11B 566
Patent
active
056352697
ABSTRACT:
A magnetic-recording disk comprising a metal substrate disk having a textured annular first surface area with an outer diameter which is substantially less than the diameter of the metal substrate is disclosed herein. The metal substrate disk further has a smooth annular second surface area between the first surface area's outer diameter and the metal substrate's circumferential edge. The textured annular first surface area has a laser-etched circular pattern. Furthermore the metal disk substrate of an aluminum alloy, a titanium alloy, or an austenitic stainless steel has a thin-film coating selected from the group consisting of nitrides, carbides, or borides of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum or tungsten.
REFERENCES:
patent: 3900592 (1975-08-01), Kennedy et al.
patent: 4565772 (1986-01-01), Takeoke et al.
patent: 4614705 (1986-09-01), Umehare
patent: 4698251 (1987-10-01), Fukuda et al.
patent: 4743481 (1988-05-01), Asada et al.
patent: 4743491 (1988-05-01), Asada et al.
patent: 4839207 (1989-06-01), Yoshitomi et al.
patent: 4877666 (1989-10-01), Muchnik et al.
patent: 4911967 (1990-03-01), Lazzari
patent: 4946730 (1990-08-01), Inui et al.
patent: 4973496 (1990-11-01), Kruger
patent: 5008176 (1991-04-01), Kondo et al.
patent: 5062021 (1991-10-01), Ranjan et al.
patent: 5108781 (1992-04-01), Ranjan et al.
Article entitled "Laser texturing for low-flying-height media," by R. Ranjan, D.N. Lambeth, M. Tromel, P. Goglia and Y. Li, of Seagate Technology, 7801 Computer Ave., Minneapolis, MN 55435.
Kurt D. Kennedy, et al., "Gas-Scattering and Ion-Plating Deposition Methods"; Airco Temescal Div., Air Reduction Company, Inc.; Sep. 15, 1971.
Kurt Kennedy, "Physical Vapor Deposition"; Airco Temescal; Apr. 19, 1972.
D.L. Chambers, et al., "Electron Beam Techniques For Ion Plating"; Airco Temescal; May 1971.
"New Developments In Ion Plating" Viewport, Issue No. 1, Airco Temescal; 1972.
Hugh R. Smith, Jr., "Current Developments In Ion Plating"; Airco Temescal; Mar. 23, 1972.
"Evaporation", Deposition Technologies For Films And Coatings; pp. 84-89, pp. 126-129; pp.126-129; Noyes Publications, 1982.
Donald M. Mattox, "Ion Plating Technology"; Deposition Technologies For Films And Coatings; pp. 244-287; Noyes Publications, 1982.
David W. Hoffman, et al., "Microstructural Control of Plasma-Sputtered Refractory Coatings"; Handbook of Plasma Processing Technology; pp. 483-517; Noyes Publications, 1990.
R.D. Bland, et al., "Effect Of Ion Bombardment During Deposition On Thick Metal And Ceramic Deposits"; J. Vac. Sci. Technol., vol. 11, No. 4, Jul./Aug. 1974; pp. 671-674.
C.Y. Ting, et al., "Study Of Planarized Sputter-deposited SiO.sup.2 "; J. Vac. Sci. Technol., 15(3), May/Jun. 1978; pp. 1105-1111.
T. Mogami, et al., "SiO.sup.2 Planarization By Two-Step rf Bias-Sputtering"; J. Vac. Sci. Technol., 83(3), May/Jun. 1985; pp. 857-861 .
Heiman Neil D.
Nelson Carl W.
Weir Richard D.
Kiliman Leszek
Tulip Memory Systems, Inc.
LandOfFree
Precision-etched textured stop/start zone for magnetic-recording does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Precision-etched textured stop/start zone for magnetic-recording, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Precision-etched textured stop/start zone for magnetic-recording will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-389925