JPH0247002B2 - - Google Patents

Info

Publication number
JPH0247002B2
JPH0247002B2 JP59005204A JP520484A JPH0247002B2 JP H0247002 B2 JPH0247002 B2 JP H0247002B2 JP 59005204 A JP59005204 A JP 59005204A JP 520484 A JP520484 A JP 520484A JP H0247002 B2 JPH0247002 B2 JP H0247002B2
Authority
JP
Japan
Prior art keywords
ferrite
magnetic
ferrite core
glass
structures
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.)
Expired - Lifetime
Application number
JP59005204A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60150215A (ja
Inventor
Motoichiro Matsuzawa
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.)
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujitsu Ltd
Nippon Telegraph and Telephone 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 Fujitsu Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujitsu Ltd
Priority to JP59005204A priority Critical patent/JPS60150215A/ja
Priority to EP85300017A priority patent/EP0149509B1/en
Priority to US06/688,502 priority patent/US4711018A/en
Priority to DE8585300017T priority patent/DE3583619D1/de
Priority to KR1019850000091A priority patent/KR910009025B1/ko
Priority to PH31707A priority patent/PH26884A/en
Publication of JPS60150215A publication Critical patent/JPS60150215A/ja
Priority to US07/100,230 priority patent/US4839763A/en
Publication of JPH0247002B2 publication Critical patent/JPH0247002B2/ja
Priority to SG74/92A priority patent/SG7492G/en
Priority to HK178/92A priority patent/HK17892A/en
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
    • G11B5/23—Gap features
    • G11B5/232—Manufacture of gap
    • 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
    • G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
JP59005204A 1984-01-14 1984-01-14 複合型磁気ヘツド用コアの製造法 Granted JPS60150215A (ja)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP59005204A JPS60150215A (ja) 1984-01-14 1984-01-14 複合型磁気ヘツド用コアの製造法
EP85300017A EP0149509B1 (en) 1984-01-14 1985-01-02 Magnectic head core and process of manufacturing the same
US06/688,502 US4711018A (en) 1984-01-14 1985-01-02 Method of manufacturing a magnetic head core
DE8585300017T DE3583619D1 (de) 1984-01-14 1985-01-02 Magnetkopfkern und herstellungsverfahren.
KR1019850000091A KR910009025B1 (ko) 1984-01-14 1985-01-09 복합형 자기 헤드용 코어의 제조법
PH31707A PH26884A (en) 1984-01-14 1985-01-11 Magnetic head core and process of manufacturing the same
US07/100,230 US4839763A (en) 1984-01-14 1987-09-23 Composite magnetic head core
SG74/92A SG7492G (en) 1984-01-14 1992-01-25 Magnetic head core and process of manufacturing the same
HK178/92A HK17892A (en) 1984-01-14 1992-03-05 Magnectic head core and process of manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59005204A JPS60150215A (ja) 1984-01-14 1984-01-14 複合型磁気ヘツド用コアの製造法

Publications (2)

Publication Number Publication Date
JPS60150215A JPS60150215A (ja) 1985-08-07
JPH0247002B2 true JPH0247002B2 (en]) 1990-10-18

Family

ID=11604662

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59005204A Granted JPS60150215A (ja) 1984-01-14 1984-01-14 複合型磁気ヘツド用コアの製造法

Country Status (2)

Country Link
JP (1) JPS60150215A (en])
KR (1) KR910009025B1 (en])

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0149509B1 (en) * 1984-01-14 1991-07-31 Ngk Insulators, Ltd. Magnectic head core and process of manufacturing the same
JPS62241116A (ja) * 1986-04-14 1987-10-21 Mitsubishi Electric Corp 磁気ヘツドの製造方法
JPS637504A (ja) * 1986-06-27 1988-01-13 Nec Kansai Ltd 磁気ヘツドコアの接合方法
JPS63200308A (ja) * 1987-02-13 1988-08-18 Nippon Chemicon Corp 磁気ヘツド用コアおよびそのコアピ−ス並びにこれらの加工方法
JPH0638003U (ja) * 1992-10-01 1994-05-20 ティアック株式会社 磁気ヘッド
JPH06231419A (ja) * 1993-01-29 1994-08-19 Victor Co Of Japan Ltd 磁気ヘッド

Also Published As

Publication number Publication date
KR910009025B1 (ko) 1991-10-28
KR850005671A (ko) 1985-08-28
JPS60150215A (ja) 1985-08-07

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term