JPS56156920A - Composite magnetic head and its production - Google Patents

Composite magnetic head and its production

Info

Publication number
JPS56156920A
JPS56156920A JP5752580A JP5752580A JPS56156920A JP S56156920 A JPS56156920 A JP S56156920A JP 5752580 A JP5752580 A JP 5752580A JP 5752580 A JP5752580 A JP 5752580A JP S56156920 A JPS56156920 A JP S56156920A
Authority
JP
Japan
Prior art keywords
head
joint surface
core
cores
spacer
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.)
Granted
Application number
JP5752580A
Other languages
English (en)
Other versions
JPS6233642B2 (ja
Inventor
Yoshiharu Fujioka
Shuji Takei
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5752580A priority Critical patent/JPS56156920A/ja
Priority to US06/256,050 priority patent/US4423550A/en
Priority to DE8181103292T priority patent/DE3164695D1/de
Priority to EP81103292A priority patent/EP0039090B1/en
Publication of JPS56156920A publication Critical patent/JPS56156920A/ja
Publication of JPS6233642B2 publication Critical patent/JPS6233642B2/ja
Granted 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
    • G11B5/187—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
    • G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
    • 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]
    • 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
    • Y10T29/49057—Using glass bonding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
JP5752580A 1980-04-30 1980-04-30 Composite magnetic head and its production Granted JPS56156920A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP5752580A JPS56156920A (en) 1980-04-30 1980-04-30 Composite magnetic head and its production
US06/256,050 US4423550A (en) 1980-04-30 1981-04-21 Composite magnetic head structure and process for manufacturing the same
DE8181103292T DE3164695D1 (en) 1980-04-30 1981-04-30 Composite magnetic head structure and process for manufacturing the same
EP81103292A EP0039090B1 (en) 1980-04-30 1981-04-30 Composite magnetic head structure and process for manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5752580A JPS56156920A (en) 1980-04-30 1980-04-30 Composite magnetic head and its production

Publications (2)

Publication Number Publication Date
JPS56156920A true JPS56156920A (en) 1981-12-03
JPS6233642B2 JPS6233642B2 (ja) 1987-07-22

Family

ID=13058151

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5752580A Granted JPS56156920A (en) 1980-04-30 1980-04-30 Composite magnetic head and its production

Country Status (4)

Country Link
US (1) US4423550A (ja)
EP (1) EP0039090B1 (ja)
JP (1) JPS56156920A (ja)
DE (1) DE3164695D1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119525A (ja) * 1982-12-27 1984-07-10 Seiko Epson Corp 磁気ヘツドの製造方法
JPS60154317A (ja) * 1984-01-24 1985-08-14 Tohoku Metal Ind Ltd ストラドルイレ−ズ型磁気ヘツドの製造方法

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4514776A (en) * 1981-05-08 1985-04-30 Alps Electric Co., Ltd. Magnetic head and method of manufacturing the same
JPS5860423A (ja) * 1981-10-07 1983-04-09 Hitachi Metals Ltd 磁気ヘツド装置
JPS58215717A (ja) * 1982-06-09 1983-12-15 Hitachi Ltd 磁気ヘツド
US4541026A (en) * 1982-07-20 1985-09-10 Vertimag Systems Corporation Hybrid read-write head for perpendicular recording media
JPS5982617A (ja) * 1982-09-13 1984-05-12 アプライド・マグネテイクス−マグネテイク フロツピ−・デイスク用の読取り／書込み特性を有する磁気ヘツド集成体
JPS59167821A (ja) * 1983-03-15 1984-09-21 Alps Electric Co Ltd 磁気ヘツドのコア組立体およびその製造方法
JPS59185015A (ja) * 1983-04-04 1984-10-20 Hitachi Ltd 磁気ヘツドおよびその製造方法
JPS6085713U (ja) * 1983-11-17 1985-06-13 アルプス電気株式会社 磁気ヘツド
DE3524424A1 (de) * 1984-07-10 1986-01-16 Hitachi Maxell, Ltd., Ibaraki, Osaka Magnetkopf
EP0175800A1 (en) * 1984-09-24 1986-04-02 Sony Corporation Magnetic transducer head
DE3602654C2 (de) * 1985-01-30 1997-11-27 Mitsubishi Electric Corp Verfahren zur Bildung einer Verbund-Magnetkopf-Stuktur und Verbund-Magnetkopf-Struktur
US4750071A (en) * 1985-08-28 1988-06-07 Canon Denshi Kabushiki Kaisha Magnetic head assembly including a pair of heads disposed in the vicinity of each other
DE3630100A1 (de) * 1986-09-04 1988-03-17 Grundig Emv Magnetkopf mit zugeordnetem loeschkopf
US4861398A (en) * 1987-12-04 1989-08-29 Hitachi, Ltd. Method for making a thin film magnetic head
US5479309A (en) * 1990-07-26 1995-12-26 Canon Denshi Kabushiki Kaisha Magnetic head having spacer assembly with laminate of magnetic and non-magnetic material

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4848616U (ja) * 1971-10-08 1973-06-26
JPS53116133A (en) * 1977-03-15 1978-10-11 Data Recording Instr Co Method of making magnetic pole structure for magnetic signal converting head

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912483A (en) * 1968-09-25 1975-10-14 Matsushita Electric Ind Co Ltd Method of making a magnetic head
US3668332A (en) * 1970-08-26 1972-06-06 Xerox Corp Magnetic recording heat which accurately defines the width of the recording track
US3846840A (en) * 1973-08-10 1974-11-05 Ibm Read/write and longitudinal edge erase head assembly having multiple similarly shaped layers
JPS5276017A (en) * 1975-12-22 1977-06-25 Hitachi Ltd Method for preparation of magnetic head
JPS53123913A (en) * 1977-04-05 1978-10-28 Olympus Optical Co Ltd Magnetic head and production of the same
US4110804A (en) * 1977-07-21 1978-08-29 International Business Machines Corporation Read/write and tunnel erase magnetic head assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4848616U (ja) * 1971-10-08 1973-06-26
JPS53116133A (en) * 1977-03-15 1978-10-11 Data Recording Instr Co Method of making magnetic pole structure for magnetic signal converting head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119525A (ja) * 1982-12-27 1984-07-10 Seiko Epson Corp 磁気ヘツドの製造方法
JPS60154317A (ja) * 1984-01-24 1985-08-14 Tohoku Metal Ind Ltd ストラドルイレ−ズ型磁気ヘツドの製造方法

Also Published As

Publication number Publication date
JPS6233642B2 (ja) 1987-07-22
EP0039090B1 (en) 1984-07-11
DE3164695D1 (en) 1984-08-16
EP0039090A3 (en) 1981-12-09
US4423550A (en) 1984-01-03
EP0039090A2 (en) 1981-11-04

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