Plural track head magnetic recording/reproducing arrangement
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsMasaru Okada, Yuichiro Murata, Shinichiro Eguchi
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Abstract
A multiple head arrangement for recording and reproducing magnetic information on a magnetic recording medium. The head structure includes an I core body and two core half bodies. A first glass member is interposed between the I core body and the first core half body at a position laterally adjacent a first read/write gap and a second glass member is interposed between the I core body and the second core half body at a position laterally adjacent a second read/write gap. A non-magnetic thin film insulation layer is interposed between the first and second core half bodies and substantially perpendicularly with respect to the read/write gaps.
Claims14
A combined magnetic head for recording and reproducing magnetic information on a magnetic recording medium for use in a magnetic recording and reproducing apparatus, comprising:
- an I core body;
- a first core half body arranged in relation to said I core body to form a first magnetic circuit with said I core body, a portion of said first core half body being spaced away from a first portion of said I core body to define a first read/write gap;
- a second core half body arranged in relation to said I core body to form a second magnetic circuit with said I core body, a portion of said first core half body being spaced away from a second portion of said I core body to define a second read/write gap, said first and second read/write gaps being aligned with one another along a straight line;
- a first glass member interposed between the I core body and the first core half body at a position laterally adjacent said first read/write gap;
- a second glass member interposed between the I core body and the second core half body at a position laterally adjacent said second read/write gap;
- first and second coils wound around the first and second core half bodies, respectively;
- a non-magnetic thin film insulation layer interposed between the first and second core half bodies and substantially perpendicularly with respect to said read/write gaps;
- and
- a third glass member interposed between a portion of the first core half body and a portion of the second core half body such that said non-magnetic thin film insulation layer extends between one end of said third glass member and one end of each of said first and second read/write gaps.
A combined magnetic head for recording and reproducing magnetic information on a magnetic recording medium for use in a magnetic recording and reproducing apparatus, comprising:
- an I core body;
- a first core half body arranged in relation to said I core body to form a first magnetic circuit with said I core body, a portion of said first core half body being spaced away from a first portion of said I core body to define a first read/write gap;
- a second core half body arranged in relation to said I core body to form a second magnetic circuit with said I core body, a portion of said first core half body being spaced away from a second portion of said I core body to define a second read/write gap, said first and second read/write gaps being aligned with one another along a straight line;
- a first glass member interposed between the I core body and the first core half body at a position laterally adjacent said first read/write gap;
- a second glass member interposed between the I core body and the second core half body at a position laterally adjacent said second read/write gap;
- first and second coils wound around the first and second core half bodies, respectively;
- a non-magnetic thin film insulation layer interposed between the first and second core half bodies at a first position and substantially perpendicularly with respect to said read/write gaps intersecting one end of each of said first and second read/write gaps;
- and
- a third glass member interposed between a portion of the first core half body not at said first position, said portion the first core half body not being wound with a coil and not having a coil inserted therein, and a portion of the second core half body not at said first position, said portion the second core half body not being wound with a coil and not having a coil inserted therein.
Dependencies are inferred from the claim text.