公开(公告)号：FR2395580A1

公开(公告)日：1979-01-19

申请号：FR7816945

申请日：1978-05-29

Applicant: IBM

Inventor： HEMPSTEAD ROBERT D ,  KRONGELB SOL ,  NEPELA DANIEL A ,  THOMPSON DAVID A ,  VALSTYN ERICH P

IPC: G11B5/31 ,  G11B5/39 ,  H01F10/00 ,  H01F10/08 ,  H01F10/12 ,  H01F10/18 ,  H01F10/32 ,  H01F41/14 ,  H01L43/08

公开(公告)号：CA1042548A

公开(公告)日：1978-11-14

申请号：CA214173

申请日：1974-11-19

Applicant: IBM

Inventor： NEPELA DANIEL A ,  POTTER ROBERT I

IPC: B41J5/30 ,  B41B27/00 ,  G06F3/12 ,  G06F17/24 ,  G11B5/30 ,  G11B5/12

Abstract: A head assembly for recording and reading data includes a pair of conductive films having a thin magnetoresistive (MR) element therebetween to achieve reading of magnetically recorded data; and having a pair of outer highly permeable members to accomplish writing of data on a magnetic medium. Control currents are applied to the conductors during each mode to provide the necessary bias for either inductive or magnetoresistive operation exclusively.

公开(公告)号：CA864254A

公开(公告)日：1971-02-23

申请号：CA864254D

Applicant: IBM

Inventor： KNIGHT ROBERT D ,  NEPELA DANIEL A

公开(公告)号：CA841552A

公开(公告)日：1970-05-12

申请号：CA841552D

Applicant: IBM

Inventor： NEPELA DANIEL A ,  SHATTUCK MEREDITH D ,  VAHTRA ULO