Flux spreading thin film magnetic devices

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

428611, 428630, 428692, 428693, 428694, 428900, 428928, 427124, 427131, 427132, 360110, 360111, 360112, 360113, 360119, 360120, 360121, 360123, 360125, 360126, 360127, 335282, G11B 2300, H01F 1008

Patent

active

050893343

ABSTRACT:
A method of flux conduction comprising providing a structure with anisotropy not purely in the transverse in-plane direction such that flux spreading into the transverse in-plane direction can occur by rotation.
This method of flux conduction is used in magnetic devices having coupled magnetic layers or coupled magnetic domains. Devices disclosed which utilize this method can function as a magnetic recording head, bubble memory, magnetic field structure, magnetic field sensor, transformer, laminated magnetic memory element or magnetic shield.

REFERENCES:
patent: 3549825 (1970-12-01), Trimble
patent: 3880602 (1975-04-01), Valin et al.
patent: 3947889 (1976-03-01), Lazzari
patent: 3961299 (1976-06-01), Lazzari et al.
patent: 3967368 (1976-07-01), Brock et al.
patent: 4103315 (1978-07-01), Hempstead et al.
patent: 4165525 (1979-08-01), Koel et al.
patent: 4179719 (1979-12-01), Imamura et al.
patent: 4223360 (1980-09-01), Sansom et al.
patent: 4228473 (1980-10-01), Himuro et al.
patent: 4242710 (1980-12-01), Hempstead et al.
patent: 4335410 (1982-06-01), Neu
patent: 4356523 (1982-10-01), Yeh
patent: 4374403 (1983-02-01), Oshima et al.
patent: 4376337 (1983-03-01), Kobayasi et al.
patent: 4413296 (1983-11-01), Jeffers
patent: 4535375 (1985-08-01), Mowry et al.
patent: 4566050 (1986-01-01), Beam et al.
patent: 4604670 (1986-08-01), Visser
patent: 4613918 (1986-09-01), Kanai et al.
patent: 4626946 (1986-12-01), Vinal
patent: 4639811 (1987-01-01), Diepers et al.
patent: 4649447 (1987-03-01), Huang et al.
patent: 4656546 (1987-04-01), Mallory
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: 4750072 (1988-06-01), Takagi
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.
T. Maruyama et al.; A Yoke Magnetoresistive Head for High Density Recording; 1987 IEEE.
W. W. Chow; Multi-Turn Core and Winding for Thin Film Inductive Head; IBM Corp. 1982; p. 4479.
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.
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.
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 Magnetization Distribution", IEEE Transactions on Magnetics, vol. 24, No. 6, Nov. 1988, pp. 2374-2376.
Michael L. Mallary, Conduction of flux at high frequencies in Permalloy strips by small-angle rotations; J. Appl. Phys. 57(1) 15 Apr., 1985; 3952-3954.
John C. Slonczewski, Bojan Petek, Bernell E. Argyle; IEEE Transactions on Magnetics, vol. 24, No. 3; May 1988; 2045-2053.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Flux spreading thin film magnetic devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flux spreading thin film magnetic devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flux spreading thin film magnetic devices will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1822220

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.