JPS5693111A - Induction-type thin-film magnetic head - Google Patents

Induction-type thin-film magnetic head

Info

Publication number
JPS5693111A
JPS5693111A JP16867479A JP16867479A JPS5693111A JP S5693111 A JPS5693111 A JP S5693111A JP 16867479 A JP16867479 A JP 16867479A JP 16867479 A JP16867479 A JP 16867479A JP S5693111 A JPS5693111 A JP S5693111A
Authority
JP
Japan
Prior art keywords
magnetic
recording
thin
film magnetic
magnetic field
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.)
Pending
Application number
JP16867479A
Other languages
Japanese (ja)
Inventor
Kaoru Toki
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP16867479A priority Critical patent/JPS5693111A/en
Publication of JPS5693111A publication Critical patent/JPS5693111A/en
Pending 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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/313—Disposition of layers
    • G11B5/3143—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding
    • G11B5/3146—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers
    • G11B5/3153—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers including at least one magnetic thin film coupled by interfacing to the basic magnetic thin film structure

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)

Abstract

PURPOSE:To obtain a thin-film magnetic head which produces a good-quality recording magnetic field with a high recording efficiency, by providing the magnetic substance layers of highly magnetic permeability adjacent to each other on the opposing surface of a recording medium and nearly right-angled to the forming surface of a thin-film magnetic pole and outside of the gap. CONSTITUTION:The gap G is formed in such way that the dielectric layer 5 is held between te thin-film magnetic substance layers 2 and 3 of highly magnetic permeability, via the nonmagnetic layers 4 and 4'. In addition, other substances 2 and 3 are provided in adjacent to each other via the nonmagnetic layers 4'', 4'' '', and 4'', respectively and nearly right-angled to the forming surface of the thin-film magnetic pole. The magnetic fields 8 and 8' adversely set to the magnetic field 7 corresponding to the recording current I and caused near the outer edge of the substances 2 and 3 by the current I and absorbed to the magnetic substance layers 11 and 12 of highly magnetic permeability. As a result, the sags 10 and 10' which are adverse to the recording direction are reduced for the X component (Hx) of the recording magnetic field, thus obtaining a high-quality recording magnetic field.
JP16867479A 1979-12-25 1979-12-25 Induction-type thin-film magnetic head Pending JPS5693111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16867479A JPS5693111A (en) 1979-12-25 1979-12-25 Induction-type thin-film magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16867479A JPS5693111A (en) 1979-12-25 1979-12-25 Induction-type thin-film magnetic head

Publications (1)

Publication Number Publication Date
JPS5693111A true JPS5693111A (en) 1981-07-28

Family

ID=15872377

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16867479A Pending JPS5693111A (en) 1979-12-25 1979-12-25 Induction-type thin-film magnetic head

Country Status (1)

Country Link
JP (1) JPS5693111A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4636901A (en) * 1982-02-05 1987-01-13 Hitachi, Ltd. Thin film magnetic head having magnetic layers of different thickness and manufacturing method therefor
US4745509A (en) * 1981-08-21 1988-05-17 Matsushita Electric Industrial Company, Limited Magnetic head with improved supporter for perpendicular magnetization recording
EP0360978A2 (en) * 1988-09-27 1990-04-04 Fujitsu Limited A thin film magnetic head for perpendicular recording and reproducing
FR2687497A1 (en) * 1992-02-13 1993-08-20 Commissariat Energie Atomique Process for making a magnetic head in thin layer form

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5182607A (en) * 1975-01-17 1976-07-20 Tokyo Shibaura Electric Co JIKI HETSUDO
JPS5233713A (en) * 1975-09-10 1977-03-15 Hitachi Ltd Thin film magnetic head

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5182607A (en) * 1975-01-17 1976-07-20 Tokyo Shibaura Electric Co JIKI HETSUDO
JPS5233713A (en) * 1975-09-10 1977-03-15 Hitachi Ltd Thin film magnetic head

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4745509A (en) * 1981-08-21 1988-05-17 Matsushita Electric Industrial Company, Limited Magnetic head with improved supporter for perpendicular magnetization recording
US4796134A (en) * 1981-08-21 1989-01-03 Matsushita Electric Industrial Co., Ltd. Magnetic head with improved supporter for perpendicular magnetization recording
US4636901A (en) * 1982-02-05 1987-01-13 Hitachi, Ltd. Thin film magnetic head having magnetic layers of different thickness and manufacturing method therefor
USRE35490E (en) * 1982-02-05 1997-04-08 Hitachi, Ltd. Thin film magnetic head having magnetic layers of different thickness and manufacturing method therefor
EP0360978A2 (en) * 1988-09-27 1990-04-04 Fujitsu Limited A thin film magnetic head for perpendicular recording and reproducing
FR2687497A1 (en) * 1992-02-13 1993-08-20 Commissariat Energie Atomique Process for making a magnetic head in thin layer form

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