DE4005504A1 - Magnetkopf - Google Patents

Magnetkopf

Info

Publication number
DE4005504A1
DE4005504A1 DE19904005504 DE4005504A DE4005504A1 DE 4005504 A1 DE4005504 A1 DE 4005504A1 DE 19904005504 DE19904005504 DE 19904005504 DE 4005504 A DE4005504 A DE 4005504A DE 4005504 A1 DE4005504 A1 DE 4005504A1
Authority
DE
Germany
Prior art keywords
magnetic
sensors
gap
magnetic flux
temp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE19904005504
Other languages
German (de)
English (en)
Inventor
Yoshimi Kaneko
Masami Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of DE4005504A1 publication Critical patent/DE4005504A1/de
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
    • G06K7/082—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors
    • G06K7/087—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors flux-sensitive, e.g. magnetic, detectors
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Magnetic Heads (AREA)
DE19904005504 1989-02-22 1990-02-21 Magnetkopf Ceased DE4005504A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1977389U JPH02113807U (enrdf_load_stackoverflow) 1989-02-22 1989-02-22

Publications (1)

Publication Number Publication Date
DE4005504A1 true DE4005504A1 (de) 1990-08-30

Family

ID=12008654

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19904005504 Ceased DE4005504A1 (de) 1989-02-22 1990-02-21 Magnetkopf

Country Status (2)

Country Link
JP (1) JPH02113807U (enrdf_load_stackoverflow)
DE (1) DE4005504A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0573372A3 (en) * 1992-06-03 1994-08-24 Eastman Kodak Co Thin film very high sensitivity magnetoresistive magnetometer having temperature compensation and single domain stability

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053343A1 (en) * 1980-11-28 1982-06-09 Hitachi, Ltd. Reproducing and amplifying circuit for magnetoresistive head
EP0248467A1 (en) * 1986-05-29 1987-12-09 Koninklijke Philips Electronics N.V. Magnetic head

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053343A1 (en) * 1980-11-28 1982-06-09 Hitachi, Ltd. Reproducing and amplifying circuit for magnetoresistive head
EP0248467A1 (en) * 1986-05-29 1987-12-09 Koninklijke Philips Electronics N.V. Magnetic head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0573372A3 (en) * 1992-06-03 1994-08-24 Eastman Kodak Co Thin film very high sensitivity magnetoresistive magnetometer having temperature compensation and single domain stability

Also Published As

Publication number Publication date
JPH02113807U (enrdf_load_stackoverflow) 1990-09-12

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8131 Rejection