Dynamic magnetic information storage or retrieval – Head – Hall effect
Patent
1982-04-13
1985-05-28
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Head
Hall effect
365157, G11B 512, G11B 530
Patent
active
045204136
ABSTRACT:
A thin-film magnetic recording playback head is disclosed wherein mechanically coupled films of a magnetostrictive material and of a piezoelectric material are deposited on a substrate together with a solid state amplifier which is coupled to the piezoelectric film. In operation, localized magnetic patterns on a recording medium induce stress in the magnetostrictive film, which in turn induces in the piezoelectric film a corresponding electrical polarization of non-equilibrium charge density, having a potential associated therewith which is applied to the solid state amplifier.
REFERENCES:
patent: 2683856 (1954-07-01), Kornei
patent: 3344237 (1967-09-01), Gregg
patent: 3389230 (1968-06-01), Hudson, Jr.
patent: 3553540 (1971-01-01), Puterbaugh, Jr.
patent: 3800193 (1974-03-01), Ashar et al.
patent: 3908194 (1975-09-01), Romankiv
patent: 3909809 (1975-09-01), Kinsner et al.
patent: 3987485 (1976-10-01), Sugaya et al.
patent: 4048648 (1977-09-01), Vinal
patent: 4129880 (1978-12-01), Vinal
patent: 4210946 (1980-07-01), Iwasaki et al.
patent: 4275428 (1981-06-01), Lehureau
Brunsch et al., IBM Tech. Discl. Bull., vol. 21, No. 2, Jul. '78, pp. 667-668; "Magnetic Read/Write Thin Film Head with Variable Adjustable Anisotropy".
Bracke et al., Int. J. Elect. 1981, vol. 51, No. 3, 255-262; "A Broadband Magneto-Electric Transducer using a Composite Material".
Patents Abstracts of Japan, vol. 1, No. 148, Nov. 29, 1977, p. 7660, E 77 & JP-A-52 88317 (Nippon Kenki K.K.), 07-23-1977.
IBM Technical Disclosure Bulletin, vol. 8, No. 3, Aug. 1965, pp. 359-360, Armonk, New York, USA, A. T. Germano et al., "Transducer Head Assembly Including Modified Field Effect Coupling".
IBM Technical Disclosure Bulletin, vol. 16, No. 8, Jan. 1974, pp. 2491-2492, Armonk, New York, USA, F. F. Fang et al., "Piezoresistive Bubble Domain Detector".
IBM Technical Disclosure Bulletin, vol. 17, No. 11, Apr. 1975, pp. 3478-3480, Armonk, New York, USA, R. Anderson et al., "Balanced Resistance Magnetoresistive Head Compensated Against Thermal and Piezoresistive Effects".
IBM Technical Disclosure Bulletin, vol. 18, No. 1, Jun. 1975, p. 24, Armonk, New York, USA, S. H. Smith, "Magnetoresistive Magnetic Head".
IBM Technical Disclosure Bulletin, vol. 17, No. 7, Dec. 1974, p. 1862, Armonk, New York, USA, S. D. Cheatham et al., "Self-Biased, Noise-Free Magnetoresistive Head".
Bendson Steven A.
Loeding Neil W.
Mularie William M.
Piotrowski Chester
Barte William B.
Heinz A. J.
Minnesota Mining and Manufacturing Company
Sell Donald M.
Smith James A.
LandOfFree
Integrated magnetostrictive-piezoelectric-metal oxide semiconduc does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Integrated magnetostrictive-piezoelectric-metal oxide semiconduc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated magnetostrictive-piezoelectric-metal oxide semiconduc will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-871718