Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1991-05-08
1993-06-08
Pianalto, Bernard
Stock material or miscellaneous articles
Composite
Of inorganic material
427130, 427131, 427162, 427258, 427265, 427271, 427282, 427331, 428900, 428928, B32B 900
Patent
active
052178196
ABSTRACT:
For a tape contact face to be formed in a thin-film magnetic head having at least one transducing element, by removing material, a reference plane (29) corresponding to the tape contact face is detected by means of a plurality of markers (27A-27J) juxtaposed in a layer and extending transversely to the tape contact face, which markers have first end portions (27A1-27J1) pointing in one direction and second, spatially separated end portions (27A2-27J2) pointing in an opposite direction, with the second end portions located at different distances from the reference plane, inclined with respect to the reference plane, and adjoining each other steplessly.
De Proost Johannes F.
Franssen Johannes H. C.
Gassen Helmut J.
Peterson James R.
Pronk Franciscus A.
Fox John C.
Pianalto Bernard
U.S. Philips Corporation
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