IT952795B - Testina magnetica e metodo per fabbricare la medesima - Google Patents

Testina magnetica e metodo per fabbricare la medesima

Info

Publication number
IT952795B
IT952795B IT49877/72A IT4987772A IT952795B IT 952795 B IT952795 B IT 952795B IT 49877/72 A IT49877/72 A IT 49877/72A IT 4987772 A IT4987772 A IT 4987772A IT 952795 B IT952795 B IT 952795B
Authority
IT
Italy
Prior art keywords
manufacturing
same
magnetic head
magnetic
head
Prior art date
Application number
IT49877/72A
Other languages
English (en)
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Application granted granted Critical
Publication of IT952795B publication Critical patent/IT952795B/it

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
    • G11B5/37—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using galvano-magnetic devices, e.g. Hall-effect devices using Hall or Hall-related effect, e.g. planar-Hall effect or pseudo-Hall effect
    • 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
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/332—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using thin films
    • 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
    • Y10T29/49037—Using reference point/surface to facilitate measuring
    • 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
    • Y10T29/49055—Fabricating head structure or component thereof with bond/laminating preformed parts, at least two magnetic

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Hall/Mr Elements (AREA)
IT49877/72A 1971-04-29 1972-04-27 Testina magnetica e metodo per fabbricare la medesima IT952795B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46028393A JPS5224404B1 (it) 1971-04-29 1971-04-29

Publications (1)

Publication Number Publication Date
IT952795B true IT952795B (it) 1973-07-30

Family

ID=12247400

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49877/72A IT952795B (it) 1971-04-29 1972-04-27 Testina magnetica e metodo per fabbricare la medesima

Country Status (7)

Country Link
US (1) US3787638A (it)
JP (1) JPS5224404B1 (it)
FR (1) FR2134561B1 (it)
GB (1) GB1386144A (it)
IT (1) IT952795B (it)
NL (1) NL7205787A (it)
SU (1) SU462361A3 (it)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5229607B2 (it) * 1972-01-01 1977-08-03
US3955213A (en) * 1974-03-11 1976-05-04 International Business Machines Corporation Intermediate product assembly of a magnetic head
US3921340A (en) * 1974-03-11 1975-11-25 Ibm Magnetic head surface formation apparatus and method
FR2273338A1 (en) * 1974-03-11 1975-12-26 Ibm Magnetic head recording or scanning - has magneto-electrical transducer and head section in one piece
DE3118850A1 (de) * 1981-05-12 1982-12-02 Siemens AG, 1000 Berlin und 8000 München Verfahren zum herstellen eines substrats mit im konstanten abstand von einer substratkante aufgebrachten, geradlinig begrenzten strukturen und anordnung zur durchfuehrung des verfahrens
US4511942A (en) * 1982-05-07 1985-04-16 Computer & Communications Technology Corp. Automatic throat height control for film heads
US4559743A (en) * 1982-09-30 1985-12-24 Magnetic Peripherals, Inc. Method for calibrating a machining sensor
DE3333369A1 (de) * 1982-09-30 1984-04-05 Magnetic Peripherals Inc., Minneapolis, Minn. Verfahren zum eichen eines bearbeitungsfuehlers
US4675986A (en) * 1985-07-29 1987-06-30 International Business Machines Electrical lapping guide for controlling the batch fabrication of thin film magnetic transducers
US4670732A (en) * 1985-08-15 1987-06-02 International Business Machines Electrical lapping guide resistor
US4689877A (en) * 1985-08-29 1987-09-01 International Business Machines Corp. Method and apparatus for controlling the throat height of batch fabricated thin film magnetic transducers
US4748773A (en) * 1985-09-03 1988-06-07 The Charles Stark Draper Laboratory, Inc. Biased grinding assembly
US4878315A (en) * 1985-09-03 1989-11-07 The Charles Stark Draper Laboratory, Inc. Griding guide and method
DE69626801D1 (de) * 1995-12-27 2003-04-24 Koninkl Philips Electronics Nv Herstellungsverfahren eines dünnfilmmagnetkopfes und mit diesem verfahren hergestellter magnetkopf
US6857937B2 (en) * 2002-05-30 2005-02-22 Komag, Inc. Lapping a head while powered up to eliminate expansion of the head due to heating
US7576948B2 (en) * 2006-02-23 2009-08-18 Seagate Technology Llc Magnetic field read sensor based on the extraordinary hall effect
KR101503224B1 (ko) * 2011-07-13 2015-03-16 아사히 가세이 일렉트로닉스 가부시끼가이샤 전류 센서용 기판 및 전류 센서
JP2017037695A (ja) * 2015-08-12 2017-02-16 株式会社東芝 磁気記録ヘッドの製造方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3495049A (en) * 1968-03-08 1970-02-10 Michigan Magnetics Inc Magnetic transducer wear indicator
FR2018239A1 (it) * 1968-09-17 1970-05-29 Pioneer Electronic Corp

Also Published As

Publication number Publication date
FR2134561A1 (it) 1972-12-08
SU462361A3 (ru) 1975-02-28
DE2219526B2 (de) 1976-04-15
US3787638A (en) 1974-01-22
GB1386144A (en) 1975-03-05
DE2219526A1 (de) 1972-11-16
NL7205787A (it) 1972-10-31
JPS5224404B1 (it) 1977-07-01
FR2134561B1 (it) 1976-08-06

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