FR2212595A1 - - Google Patents

Info

Publication number
FR2212595A1
FR2212595A1 FR7345278A FR7345278A FR2212595A1 FR 2212595 A1 FR2212595 A1 FR 2212595A1 FR 7345278 A FR7345278 A FR 7345278A FR 7345278 A FR7345278 A FR 7345278A FR 2212595 A1 FR2212595 A1 FR 2212595A1
Authority
FR
France
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.)
Granted
Application number
FR7345278A
Other languages
French (fr)
Other versions
FR2212595B3 (en
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.)
DATA RECORDING INSTRUMENT CY LTD GB
Data Recording Instrument Co Ltd
Original Assignee
DATA RECORDING INSTRUMENT CY LTD GB
Data Recording Instrument 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 DATA RECORDING INSTRUMENT CY LTD GB, Data Recording Instrument Co Ltd filed Critical DATA RECORDING INSTRUMENT CY LTD GB
Publication of FR2212595A1 publication Critical patent/FR2212595A1/fr
Application granted granted Critical
Publication of FR2212595B3 publication Critical patent/FR2212595B3/fr
Expired 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
    • G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
    • 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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/1871—Shaping or contouring of the transducing or guiding surface
    • 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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/193—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features the pole pieces being ferrite or other magnetic particles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49027—Mounting preformed head/core onto other structure
    • Y10T29/4903—Mounting preformed head/core onto other structure with bonding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
    • Y10T29/49041—Fabricating head structure or component thereof including measuring or testing with significant slider/housing shaping or treating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
FR7345278A 1972-12-29 1973-12-18 Expired FR2212595B3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6015272A GB1423520A (en) 1972-12-29 1972-12-29 Manufacture of magnetic transducing heads

Publications (2)

Publication Number Publication Date
FR2212595A1 true FR2212595A1 (en) 1974-07-26
FR2212595B3 FR2212595B3 (en) 1976-10-15

Family

ID=10485117

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7345278A Expired FR2212595B3 (en) 1972-12-29 1973-12-18

Country Status (5)

Country Link
US (1) US3928908A (en)
JP (1) JPS4999015A (en)
FR (1) FR2212595B3 (en)
GB (1) GB1423520A (en)
NL (1) NL7317124A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030189A (en) * 1973-02-21 1977-06-21 Compagnie Internationale Pour L'informatique Method of making magnetic head devices
JPS51138421A (en) * 1975-05-26 1976-11-30 Olympus Optical Co Ltd Method of fabricating magnetic head
GB1481370A (en) * 1975-10-03 1977-07-27 Burroughs Corp Magnetic recording apparatus for recording on both sides of a moving record member
JPS5370808A (en) * 1976-12-07 1978-06-23 Victor Co Of Japan Ltd Magnetic head
AT365804B (en) * 1977-12-20 1982-02-25 Bogen Wolfgang ABRASION RESISTANT MAGNETIC HEAD
US4291354A (en) * 1979-06-04 1981-09-22 Ampex Corporation Extended life multichannel magnetic transducer
US4246695A (en) * 1979-08-31 1981-01-27 Memorex Corporation Two rail slider assembly production technique for making thin film heads
US5048175A (en) * 1989-03-03 1991-09-17 Seagate Technology, Inc. Method for grounding pole structures in thin film magnetic heads
JPH10247309A (en) * 1997-03-05 1998-09-14 Matsushita Electric Ind Co Ltd Manufacture of rotary head device, manufacture of magnetic head unit, rotary head device and magnetic head unit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2800534A (en) * 1956-03-15 1957-07-23 Ibm Electromagnetic transducer
US3195119A (en) * 1962-12-31 1965-07-13 Burroughs Corp Magnetic transducer head assembly
US3384954A (en) * 1965-12-07 1968-05-28 Ibm Making multitrack magnetic transducer
US3601871A (en) * 1968-09-30 1971-08-31 Texas Instruments Inc Method for fabricating magnetic read-write head array and product

Also Published As

Publication number Publication date
NL7317124A (en) 1974-07-02
JPS4999015A (en) 1974-09-19
GB1423520A (en) 1976-02-04
US3928908A (en) 1975-12-30
FR2212595B3 (en) 1976-10-15

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