公开(公告)号：NO792744L

公开(公告)日：1980-02-29

申请号：NO792744

申请日：1979-08-23

Applicant: IBM

Inventor： ALBERT PAUL ANDRE ,  HEIMAN NEIL DUANE ,  POTTER ROBERT IVAN ,  WHITE ROBERT LEE

IPC: C23C14/14 ,  C22C45/02 ,  C23C14/06 ,  G11B5/64 ,  G11B5/65 ,  H01F10/13 ,  H01F10/18 ,  H01F10/187 ,  H01F41/18 ,  G11B

Abstract: This invention relates to a thin film of an amorphous magnetic material including ion-nitride having the formula FexN1-x, where x is from 0.4 to 0.7. The film is deposited on a substrate by sputter deposition in the presence of an inert gas and at a pressure from 25 mu m to 100 mu m. The coercivity of the magnetic material varies as a function of the gas pressure employed during sputtering.

公开(公告)号：FI74165C

公开(公告)日：1987-12-10

申请号：FI792600

申请日：1979-08-21

Applicant: IBM

Inventor： ALBERT PAUL ANDRE ,  HEIMAN NEIL DUANE ,  POTTER ROBERT IVAN ,  WHITE ROBERT LEE

IPC: C23C14/14 ,  C22C45/02 ,  C23C14/06 ,  G11B5/64 ,  G11B5/65 ,  H01F10/13 ,  H01F10/18 ,  H01F10/187 ,  H01F41/18 ,  H01F10/10 ,  H01F41/14

公开(公告)号：DE2455485A1

公开(公告)日：1975-06-19

申请号：DE2455485

申请日：1974-11-23

Applicant: IBM

Inventor： NEPELA DANIEL ANDREW ,  POTTER ROBERT IVAN

IPC: G11B5/31 ,  G11B5/127 ,  G11B5/37 ,  G11B5/39 ,  G11B19/02 ,  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：FI74165B

公开(公告)日：1987-08-31

申请号：FI792600

申请日：1979-08-21

Applicant: IBM

Inventor： ALBERT PAUL ANDRE ,  HEIMAN NEIL DUANE ,  POTTER ROBERT IVAN ,  WHITE ROBERT LEE

IPC: C23C14/14 ,  C22C45/02 ,  C23C14/06 ,  G11B5/64 ,  G11B5/65 ,  H01F10/13 ,  H01F10/18 ,  H01F10/187 ,  H01F41/18 ,  H01F10/10 ,  H01F41/14

Abstract: This invention relates to a thin film of an amorphous magnetic material including ion-nitride having the formula FexN1-x, where x is from 0.4 to 0.7. The film is deposited on a substrate by sputter deposition in the presence of an inert gas and at a pressure from 25 mu m to 100 mu m. The coercivity of the magnetic material varies as a function of the gas pressure employed during sputtering.

公开(公告)号：DE2964474D1

公开(公告)日：1983-02-17

申请号：DE2964474

申请日：1979-06-18

Applicant: IBM

Inventor： ALBERT PAUL ANDRE ,  HEIMAN NEIL DUANE ,  POTTER ROBERT IVAN ,  WHITE ROBERT LEE

IPC: C23C14/14 ,  C22C45/02 ,  C23C14/06 ,  G11B5/64 ,  G11B5/65 ,  H01F10/13 ,  H01F10/18 ,  H01F10/187 ,  H01F41/18 ,  G11B5/62 ,  C23C15/00 ,  H01F10/10

Abstract: This invention relates to a thin film of an amorphous magnetic material including ion-nitride having the formula FexN1-x, where x is from 0.4 to 0.7. The film is deposited on a substrate by sputter deposition in the presence of an inert gas and at a pressure from 25 mu m to 100 mu m. The coercivity of the magnetic material varies as a function of the gas pressure employed during sputtering.

公开(公告)号：FI792600A

公开(公告)日：1980-02-29

申请号：FI792600

申请日：1979-08-21

Applicant: IBM

Inventor： ALBERT PAUL ANDRE ,  HEIMAN NEIL DUANE ,  POTTER ROBERT IVAN ,  WHITE ROBERT LEE

IPC: C23C14/14 ,  C22C45/02 ,  C23C14/06 ,  G11B5/64 ,  G11B5/65 ,  H01F10/13 ,  H01F10/18 ,  H01F10/187 ,  H01F41/18 ,  H01F

Abstract: This invention relates to a thin film of an amorphous magnetic material including ion-nitride having the formula FexN1-x, where x is from 0.4 to 0.7. The film is deposited on a substrate by sputter deposition in the presence of an inert gas and at a pressure from 25 mu m to 100 mu m. The coercivity of the magnetic material varies as a function of the gas pressure employed during sputtering.

公开(公告)号：AU521856B2

公开(公告)日：1982-05-06

申请号：AU4796879

申请日：1979-06-11

Applicant: IBM

Inventor： ALBERT PAUL ANDRE ,  HEIMAN NEIL DUANE ,  POTTER ROBERT IVAN ,  WHITE ROBERT LEE

IPC: C23C14/14 ,  C22C45/02 ,  C23C14/06 ,  G11B5/64 ,  G11B5/65 ,  H01F10/13 ,  H01F10/18 ,  H01F10/187 ,  H01F41/18 ,  G11B5/62 ,  H01F1/14 ,  H01F10/02 ,  H01F41/14

Abstract: This invention relates to a thin film of an amorphous magnetic material including ion-nitride having the formula FexN1-x, where x is from 0.4 to 0.7. The film is deposited on a substrate by sputter deposition in the presence of an inert gas and at a pressure from 25 mu m to 100 mu m. The coercivity of the magnetic material varies as a function of the gas pressure employed during sputtering.

公开(公告)号：AU4796879A

公开(公告)日：1980-03-06

申请号：AU4796879

申请日：1979-06-11

Applicant: IBM

Inventor： ALBERT PAUL ANDRE ,  HEIMAN NEIL DUANE ,  POTTER ROBERT IVAN ,  WHITE ROBERT LEE

IPC: C23C14/14 ,  C22C45/02 ,  C23C14/06 ,  G11B5/64 ,  G11B5/65 ,  H01F10/13 ,  H01F10/18 ,  H01F10/187 ,  H01F41/18 ,  H01F1/14 ,  H01F10/02 ,  H01F41/14 ,  G11B5/62

Abstract: This invention relates to a thin film of an amorphous magnetic material including ion-nitride having the formula FexN1-x, where x is from 0.4 to 0.7. The film is deposited on a substrate by sputter deposition in the presence of an inert gas and at a pressure from 25 mu m to 100 mu m. The coercivity of the magnetic material varies as a function of the gas pressure employed during sputtering.

公开(公告)号：NO792744A

公开(公告)日：1980-02-29

申请号：NO792744

申请日：1979-08-23

Applicant: IBM

Inventor： ALBERT PAUL ANDRE ,  HEIMAN NEIL DUANE ,  POTTER ROBERT IVAN ,  WHITE ROBERT LEE

IPC: C23C14/14 ,  C22C45/02 ,  C23C14/06 ,  G11B5/64 ,  G11B5/65 ,  H01F10/13 ,  H01F10/18 ,  H01F10/187 ,  H01F41/18 ,  G11B

CPC classification number: C23C14/0641 ,  H01F10/131 ,  H01F10/187 ,  H01F41/18 ,  Y10S428/90 ,  Y10T428/26 ,  Y10T428/265

公开(公告)号：DE2315713A1

公开(公告)日：1973-11-29

申请号：DE2315713

申请日：1973-03-29

Applicant: IBM

Inventor： POTTER ROBERT IVAN ,  WARNER MICHAEL WALTER

IPC: G11B5/11 ,  G11B5/17 ,  G11B5/187 ,  G11B5/23 ,  G11B5/265 ,  G11B5/31 ,  G11B5/39 ,  G11B5/26

Abstract: A magnetic head is disclosed having an inner magnetic core and an outer magnetic core that is magnetically spaced about the inner core so as to form a three transducer gap structure. A flux sensing means is linked solely with the inner core. The fringing fields under the two outer transducer gaps have the same direction and are of smaller magnitude and in the opposite direction than the fringing field under the central transducer gap. The composite fringing field contributed by this structure results in a narrow pulse width and is useful in high-resolution high-recording density systems.