Dynamic magnetic information storage or retrieval – Head – Plural gaps
Patent
1985-07-31
1987-12-15
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Head
Plural gaps
360122, G11B 5255, G11B 529
Patent
active
047137096
ABSTRACT:
A twin head for use in an electronic still camera includes a shield plate, first and second head chips bonded on opposite sides of the shield plate, and first and second reinforcing core members further bonded on first and second head chips, respectively. Each of the first and second head chip members has an elongated face that faces a recording medium and a magnetic gap defined at an intermediate portion of the elongated face. The length Wh of the elongated face is between 0.3 millimeter and 1 millimeter. Each of the first and second reinforcing core members has a coil wound thereon. The first and second head chip members, the shield plate, and the first and second reinforcing core members are bonded together such that the elongated faces of the first and second head chip members are in flush with each other and that the magnetic gaps of the first and second head chip members are aligned to each other.
REFERENCES:
patent: 4291352 (1981-09-01), Gooch
patent: 4475137 (1984-10-01), Yasuda et al.
patent: 4590530 (1986-05-01), Sakakima et al.
Taketa Kazuhiko
Yasuda Isao
Yoshikawa Hideki
Yoshisato Yorinobu
Sanyo Electric Co,. Ltd.
Tupper Robert S.
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