Dynamic magnetic information storage or retrieval – Head – Core
Patent
1982-07-30
1985-10-08
Kilgore, Robert M.
Dynamic magnetic information storage or retrieval
Head
Core
360123, G11B 516, G11B 520
Patent
active
045463980
ABSTRACT:
A perpendicular magnetic recording and reproducing head, including: a spiral coil of at least one electrically conductive thin film; and a main pole of a first thin magnetic film having an end for recording and reproducing information, the main pole and the spiral coil being electromagnetically coupled to each other. A perpendicular magnetic head such as this can be easily manufactured, can be adapted not only to floppy disks but also to rigid disks, is suitable for high-frequency operation, and has an improved recording/reproducing efficiency.
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IBM Technical Disclosure Bulletin, vol. 24, No. 4, Sep. 1981, pp. 1931-1932, Armonk, N.Y., USA, T. A. Schwarz: "Perpendicular Recording Read-Write Head with High Reluctance Leg" * p. 1931, paragraphs 1,2,3; figure.
IBM Technical Disclosure Bulletin, vol. 24, No. 8, Jan. 1982, pp. 4034-4035, Armonk, N.Y., USA, T. A. Schwarz: "Vertical Record/Read Magnetic Head" * Whole document.
Hiyane Masao
Toda Junzo
Fujitsu Limited
Kilgore Robert M.
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