发明名称 |
Magnetic head having electromechanical transducer disposed at one end thereof |
摘要 |
A thin magnetic film is deposited over a nonmagnetic or piezoelectric substrate. When a shock wave is propagated through this substrate from its one end to the other end, the permeability of the thin magnetic film is locally increased and a portion or region having a high permeability also travels from one end to the other end of the thin magnetic film in unison with the shock wave. A magnetic core with a signal winding is disposed and magnetically coupled with the thin magnetic film. The signal can be recorded or reproduced while the recording medium is scanned.
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申请公布号 |
US4672496(A) |
申请公布日期 |
1987.06.09 |
申请号 |
US19820400596 |
申请日期 |
1982.07.22 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
KANAI, KENJI;KAMINAKA, NOBUYUKI;NOMURA, NOBORU;OMATA, YUUJI |
分类号 |
G11B5/127;G11B5/49;(IPC1-7):G11B5/147 |
主分类号 |
G11B5/127 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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