Method of making a transducer with improved inductive coupling

Metal working – Method of mechanical manufacture – Electrical device making

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360123, 427131, 427132, G11B 542

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054288932

ABSTRACT:
A thin film magnetic transducer formed in multiple layers and comprising a yoke having a plurality of arms, at least one of which has segments lying in separate layers and connected through a transition layer, and a multiturn coil intertwined with the yoke to provide at least two flux interactions between the yoke and coil. The transducer is constructed to enhance flux conduction by rotation and minimize flux conduction by wall motion in the yoke.

REFERENCES:
patent: 3549825 (1970-12-01), Trimble
patent: 3967368 (1976-07-01), Brock
patent: 4100583 (1978-07-01), Koel et al.
patent: 4165525 (1979-08-01), Koel et al.
patent: 4223360 (1980-09-01), Sansom et al.
patent: 4335410 (1982-06-01), Neu
patent: 4374403 (1983-02-01), Oshima et al.
patent: 4376337 (1983-03-01), Kobayasi et al.
patent: 4535375 (1985-08-01), Mowry et al.
patent: 4566050 (1986-01-01), Beam et al.
patent: 4613918 (1986-09-01), Kanai et al.
patent: 4626946 (1986-12-01), Vinal
patent: 4626947 (1986-12-01), Narishige et al.
patent: 4639811 (1987-01-01), Diepers et al.
patent: 4649447 (1987-03-01), Huang et al.
patent: 4656546 (1987-04-01), Mallary
patent: 4663685 (1987-05-01), Tsang
patent: 4668913 (1987-05-01), Vinal
patent: 4695351 (1987-09-01), Mallary
patent: 4698711 (1987-10-01), Vinal
patent: 4754506 (1988-05-01), Nakamura et al.
patent: 4803580 (1989-02-01), Mowry
patent: 4816947 (1989-03-01), Vinal et al.
patent: 4825318 (1989-04-01), Hoo et al.
patent: 4891725 (1990-01-01), Mowry
patent: 4912584 (1990-03-01), Mallary et al.
patent: 4931886 (1988-06-01), Mallary
patent: 5027247 (1991-06-01), Nakanishi
patent: 5085935 (1992-02-01), Mallary
patent: 5089334 (1992-02-01), Mallary
Maruyama et al.; A Yoke Magnetoresistive Head for High Track Density Recording; IEEE 1987; pp. 2503-2505.
Vinal, (IBM Technical Disclosure Bulletin, vol. 26 No. 7B, Dec. 1983).
Jeffers, "Magnetoresistive Transducer with Canted Easy Axis," IEEE Transactions on Magnetics, vol. Mag-15, No. 6, Nov. 1979, pp. 1628-1629.
Oshiki, "A Thin-film Head for Perpendicular Magnetic Recording," J. Appl. Phys. 53(3), Mar. 1982, pp. 2593-2595.
Potter, "Self-Consistent Computer Calculations For Perpendicular Magnetic Recording," IEEE Transactions on Magnetics, vol. MAG-16, No. 5, Sep. 1980, pp. 967-972.
Mallary et al., "Three-Dimensional Transmission Line Model for Flux Conduction In Thin-Film Recording Heads," J. Appl. Phys. 67(9), May, 1990, pp. 4863-4865.
Mallary et al., "Conduction of Flux At High Frequencies By A Charge Free Magnetixation Distribution," IEEE Transactions on Magnetics, vol. 24, No. 6, Nov. 1988, 2374-2376.
Michael L. Mallary; "Conduction of flux at high frequencies in Permalloy strips by small-angle rotations"; J. Appl. Phys. 57(1), Apr. 15, 1985; pp. 3952-3954.
Shinagawa, "Simulation of Perpendicular Recording on Co-Cr Media With A Thin Permalloy Film-Ferrite Composite Head," J. Appl. Phys. 53(3), Mar. 1982, pp. 2585-2587.
Iwaski, "An Analysis For The Magnetization Mode For High Density Magnetic Recording," IEEE Transactions on Magnetics, vol. MAG-13, No. 5, Sep. 1977, pp. 1272-1277.
Mallary et al., "Frequency Response of Thin-Film Heads With Longitudinal and Transverse Anisotropy," IEEE Transactions on Magnetics, vol. 26, No. 5, Sep. 1990, pp. 1334-1336.
Lazzari et al., "A New Thin Film Head Generation," IEEE; 1989; pp. 3190-3193.
W. W. Chow; IBM Technical Disclosure Bulletin; vol. 24, No. 9; Feb. 1982; Multi-Turn Core and Winding For Thin Fil Inductive Head; p. 4479.

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