Dynamic magnetic information storage or retrieval – Head – Plural gaps
Patent
1982-05-07
1985-04-30
Kilgore, Robert M.
Dynamic magnetic information storage or retrieval
Head
Plural gaps
360118, 360120, G11B 512, G11B 527, G11B 5251, G11B 528
Patent
active
045147760
ABSTRACT:
A magnetic head characterized in that a nonmagnetic material of an erasing core chip in which two erasing cores are coupled by the nonmagnetic material is provided with a groove portion and that a recording/reproducing core is inserted in the groove portion. The magnetic head can be fabricated by a method characterized by comprising the step of providing first and second orthogonal grooves in a face plate, the step of providing the groove portion in the nonmagnetic material of the erasing core chip, the step of inserting the recording/reproducing core in the first groove, inserting the erasing core chip in the second groove and inserting the recording/reproducing core in the groove portion of the nonmagnetic material, and the step of fixing the face plate, the recording/reproducing core and the erasing core chip with glass or the like and polishing a front surface of the face plate.
REFERENCES:
patent: 3964103 (1976-06-01), Thompson et al.
patent: 4137555 (1979-01-01), Sveceny
patent: 4176384 (1979-11-01), Yang
patent: 4180835 (1979-12-01), Okumura
patent: 4276574 (1981-06-01), Baasch
patent: 4423550 (1984-01-01), Fujioka
Iwata Tetsuya
Koyama Shoichi
Alps Electric Co. ,Ltd.
Dunne Gerard F.
Kilgore Robert M.
Shoup Guy W.
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