# US 4,381,529 A · Magnetic head construction

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- Number: US 4,381,529 A
- Document ID: US4381529A
- Status: Granted
- Kind: A
- Application number: 06/208,968
- Filed: 1980-11-21
- Granted: 1983-04-26
- Earliest claimed: 1979-12-03
- Assignees: U.S. Philips Corporation
- Inventors: Jan Bouwma; Johannes Kerssen
- Web page: https://patentgrep.com/patent/US4381529A

## CPC

- G11B 5/3103: {Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing}
- G11B 5/10: Structure or manufacture of housings or shields for heads
- G11B 5/17: Construction or disposition of windings
- G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R)

## Abstract

A magnetic head construction includes a substrate of non-electrically conductive material supporting a number of integrated magnetic heads. This assembly is surrounded by a synthetic resin envelope in which a number of strip-shaped current conductors have parts which project from the envelope. The substrate is provided on an end of one of the current conductors. The integrated heads are connected to the conductor parts by means of respective connection conductors.

## Claims

### Claim 1

A magnetic head construction comprising a substrate of non-electrically conductive material, a number of layer-wise formed electromagnetic transducer elements supported on the substrate, and first connection conductors connecting the elements to connection surfaces on the substrate, characterized in that the construction further comprises a synthetic resin casing in which the substrate with the transducer elements integrated thereon is embedded, and a number of spaced strip-shaped current conductors situated mainly in one plane and having flat parts projecting from the casing, one of the current conductors, at its end situated inside the casing, having a flat portion on which the substrate is provided, the current conductor parts being connected to the connection surfaces of the transducer elements by respective second connection conductors.

### Claim 2 (depends on 1)

A magnetic head construction as claimed in claim 1, characterized in that the casing exposes an edge of the substrate, and the edges of the transducer elements adjoin the substrate edge.