Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1996-10-31
1998-12-01
Kiliman, Leszek
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
428213, 428336, 428403, 428611, 428692, 428694B, 428694BS, 428694BA, 428694BM, 428900, 427130, 427131, 360110, 360125, G11B 566, B32B 702
Patent
active
058435654
ABSTRACT:
The flexible, particulate magnetic storage medium includes a substrate and a magnetic storage layer of hard magnetic particles held within a binder. The flexible, particulate magnetic storage medium also includes a soft magnetic keeper layer. The soft magnetic keeper layer may be established by coating the individual hard magnetic particles of the magnetic storage layer with a layer of soft magnetic material to establish a "keeper layer" around each particle. A break layer of non-magnetic material may be provided between the hard and soft layers. The individual particles are coated by methods such as in situ precipitation. The soft magnetic layer may also be established by providing a separate layer of soft magnetic material within a binder of cross linkable resins. The resulting flexible, particulate magnetic storage medium is a laminate principally comprising a substrate, a first layer of hard magnetic particles within a binder, and a second layer of soft magnetic particles also within a binder. The laminate medium may be produced through extrusion of binder particle mixes through multi aperture slot die extensions. The flexible, particulate magnetic media may be used in tape or flexible disc formats.
REFERENCES:
patent: 3079468 (1963-02-01), Morey
patent: 3084227 (1963-04-01), Peters
patent: 3106614 (1963-10-01), Fox
patent: 3127592 (1964-03-01), Neergaard
patent: 3188399 (1965-06-01), Eldridge
patent: 3239823 (1966-03-01), Chang
patent: 3255307 (1966-06-01), Schuller
patent: 3314056 (1967-04-01), Lawrance
patent: 3319254 (1967-05-01), Honig
patent: 3432837 (1969-03-01), Fan
patent: 3435440 (1969-03-01), Nallin
patent: 3555204 (1971-01-01), Braun
patent: 4277809 (1981-07-01), Fisher et al.
patent: 4318136 (1982-03-01), Jeffers
patent: 4410603 (1983-10-01), Yamamori et al.
patent: 4464691 (1984-08-01), Sawazaki
patent: 4530016 (1985-07-01), Sawazaki
patent: 4535369 (1985-08-01), Sawazaki
patent: 4613915 (1986-09-01), Crouse et al.
patent: 4642709 (1987-02-01), Vinal
patent: 4657812 (1987-04-01), Hatanai et al.
patent: 4657819 (1987-04-01), Funaki
patent: 4687712 (1987-08-01), Sugita et al.
patent: 4698711 (1987-10-01), Vinal
patent: 4717592 (1988-01-01), Nagao et al.
patent: 4782415 (1988-11-01), Vinal
patent: 4985795 (1991-01-01), Gooch
patent: 5041922 (1991-08-01), Wood
patent: 5062007 (1991-10-01), Nakatsu et al.
patent: 5105323 (1992-04-01), Ruigrok
patent: 5119255 (1992-06-01), Gooch
patent: 5130876 (1992-07-01), Gooch
patent: 5132957 (1992-07-01), Mashimo
patent: 5147732 (1992-09-01), Shiroishi et al.
patent: 5153796 (1992-10-01), Gooch
patent: 5176965 (1993-01-01), Mallary
patent: 5189572 (1993-02-01), Gooch
patent: 5216657 (1993-06-01), Nishiuchi et al.
patent: 5227939 (1993-07-01), Gooch
patent: 5243588 (1993-09-01), Maeda et al.
patent: 5331492 (1994-07-01), Komai et al.
patent: 5337203 (1994-08-01), Kitada et al.
patent: 5431969 (1995-07-01), Mallary
patent: 5483403 (1996-01-01), Voegeli
patent: 5493464 (1996-02-01), Koshikawa
patent: 5514452 (1996-05-01), Araki et al.
IEEE Transactions on Magnetics, "A Yoke Magnetoresistive Head for High Track Density Recording", Maruyama et al., vol. Mag-23, No. 5, Sep. 1987, pp. 2503-2505.
IEEE Transactions on Magnetics, "Effect of Induced Uniaxial Magnetic Anisotropy of Ni-Fe Keeper Layer on the Recording Properties of Longitudinal Co-Cr-Ta/Cr Thin Film Media", Sin et al., vol. 31, No. 6, Nov. 1995.
IEEE Transactions on Magnetics, "A High Resolution Flying Magnetic Disk Recording System with Zero Reproduce Spacing Loss", Gooch et al., vol. 27, No. 6, Nov. 1991, pp. 4549-4554.
IEEE Transactions on Magnetics, "New Concepts for Perpendicular Magnetic Recording Hard Disk System", Nakamura et al., vol. 27, No. 6, Nov. 1991, pp. 4555-4560.
Shun-ichi Iwasaki, Yoshihisa Nakamura and Isao Watanabe, "Perpdendicular Recording/Playback on Composite Film Media" No. 37, Research Institute, Electro-communication, Tohoku University, Memo for the 1979 Electro-communication Society (Semiconductor and Material Department) Meeting No. 191.
Shun-ichi Iwasaki, Kazuhiro Ohuchi and Naoki Honda, "Anisotropy and Film Structure of Perpendicular Recording Medium" No. 38, Research Institute, Electro-communication, Tohoku University, Memo for the 1979 Electro-communication Society (Semiconductor and Material Department) Meeting No. S2-5.
Shun-ichi Iwasaki and Yoshihisa Nakamura, One Method for Magnetic Recording Using Composite Recording Medium, No. 46, Memo for the 1979 Electro-communication Society Meeting No. 241.
Shun-ichi Iwasaki, Yoshihisa Nakamura and Masaki Watanabe, "Relationship between Recording Sensitivity and Reproducing Sensitivity in Perpendicular Recording" No. 48, Memo for the 1979 Tohoku-area Electronic Related Society Meeting No. 1F2.
Shun-ichi Iwasaki, Kazuhiro Ohuchi and Naoki Honda, Magnetic Behaviors of Composite Film Medium in Perpendicular Recording No. 39, Research Institute, Electro-communication, Tohoku University, Abstracts of the 3rd Annual Conference on Magnetics in Japan, 1979 (24pA-6).
Shun-ichi Iwasaki, Yoshihisa Nakamura, Isao Watanabe and Masaki Watanabe, "High Density Recording and Reproducing with Perpendicular Magnetic Head", No. 40, Research Institute, Electro-communication, Tohoku University, Abstract of the 3rd Annual Conference on Magnetics in Japan, 1979 (24pA-14).
Shun-ichi Iwasaki, Yoshihisa Nakamura and Makoto Koizumi, Experiments of Perpendicular Magnetic Recording with Magnified Head and Medium, No. 41, Research Institute, electro-communication, Tohoku University, Abstract of the 3rd Annual Conference on Magnetics in Japan, 1979, (24pA-13).
Marvin Camras, Magnetic Recording Handbook, 1988.
James E. Opfer, Bruce F. Spenner, Bangalore R. Natarajan, Richard A. Baugh, Edward S. Murdock, Charles C. Morehouse and David J. Bromley, Thin-Film Memory Disc Development, 1985, pp. 4-10.
Eberhard Koste, Fernseh-Und Kino-Technik, 1984, pp. 425-432.
W. Earl Stewart, Magnetic Recording Techniques, 1958, pp. 87-104.
J. Flora and J.R. Werning, Multitrack Probe Type Recording Transducer, IBM Technical Disclosure Bulletin.
Otto Kornei, Survey of Flux-Responsive Magnetic Reproducing Heads, Journal of Audio Engineering Society, vol. 2, No. 3, Jul. 1954.
Dirk Quak, Influence of the Layer of Thickness of a Double-Layer Medium on the Reproduced Signal in Perpendicular Recording, IEEE Transactions On Magnetics, vol. Mag-19, No. 4, Jul. 1983.
Shun-ichi Iwasaki, Perpendicular Magnetic Recording, IEEE Transactions On Magnetics, vol. Mag-16, No. 1, Jan. 1980.
Coughlin Thomas M.
Davies David H.
Gooch Beverley R.
Almeida George B.
Ampex Corporation
Kiliman Leszek
Mesaros John G.
LandOfFree
Particulate magnetic medium utilizing keeper technology and meth does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Particulate magnetic medium utilizing keeper technology and meth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Particulate magnetic medium utilizing keeper technology and meth will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2394029