KR840007774A - 페라이트 코어를 가진 자기헤드 - Google Patents

페라이트 코어를 가진 자기헤드 Download PDF

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Publication number
KR840007774A
KR840007774A KR1019830005980A KR830005980A KR840007774A KR 840007774 A KR840007774 A KR 840007774A KR 1019830005980 A KR1019830005980 A KR 1019830005980A KR 830005980 A KR830005980 A KR 830005980A KR 840007774 A KR840007774 A KR 840007774A
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KR
South Korea
Prior art keywords
magnetic head
ferrite
ferrite core
magnetic
core
Prior art date
Application number
KR1019830005980A
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English (en)
Other versions
KR910007871B1 (ko
Inventor
스토펠스 도에코
스토펠스(외 1) 도에코
아우구스티누스 후버투스 반호프 레오나르두스
Original Assignee
엔. 브이. 필립스 글로아이람펜파브리켄
아이. 엠. 레르느
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.)
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Application filed by 엔. 브이. 필립스 글로아이람펜파브리켄, 아이. 엠. 레르느 filed Critical 엔. 브이. 필립스 글로아이람펜파브리켄
Publication of KR840007774A publication Critical patent/KR840007774A/ko
Application granted granted Critical
Publication of KR910007871B1 publication Critical patent/KR910007871B1/ko

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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
    • G11B5/133—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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2658—Other ferrites containing manganese or zinc, e.g. Mn-Zn ferrites
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/11—Magnetic recording head
    • Y10T428/115—Magnetic layer composition
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Magnetic Heads (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

내용 없음.

Description

페라이트 코어를 가진 자기헤드
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 자기헤드의 도식적인 사시도.
제2도는 본 발명에 관계하는 기본적인 영역과 20℃에서 측정된 Ms값을 그 속에 지시해주는 Mn-Zn페로스-페라이트의 구성도.
제3및 4도는 여러가지 양의 Co IIMe1-xCo III xFe2 IVO4(여기서 Me=(Mn, Zn, FeII)의 환형코어의 자기 투자율 μ′(의성분)를 온도 T℃의 함수로 나타대는 그래프.
제5도는 Mn0.31Zn0.2Co0.004Fe2.46O4의 환형코어의 자기투자율 μ′와 μ″의 성분을 40℃에서 주파수의 함수로 나타대는 그래프.

Claims (6)

  1. 사이에 변환 갭이 형성되는 두개의 코어 부분을 가지는 페라이트 코어로 구성되는, 자기기록 재생장치에 사용되는 자기헤드에 있어서. 페라이트가 0〈a≤0.55, 0.06≤b≤0.40, 0.34≤c≤ 0.90(a+b+c=1)인 MnaZnbFec IIIFe2 II04의 기본구성을 이루고 있고 0.5에서 5MHz 범위에서의 선택된 주파수에서의 자기 투자율의 최대값이 대체로 자기헤드의 동작온도 범위안에 있게하는 것을 특징으로하는 자기헤드.
  2. 제1항의 자기헤드에 있어서, CoII의 성분이 금속, 기온의 총갯수에 참조하여 계산하면 0.02에서 0.2% 사이에 있는 것을 특징으로하는 자기헤드.
  3. 제1항이나 2항의 자기헤드에 있어서 0.45≤C≤0.9를 특징으로하는 자기헤드.
  4. 선행된 항중의 어느 한 항의 자기헤드에 있어서, 페라이트 코어의 두께가 200㎛를 넘지않는 것을 특징으로하는 자기헤드.
  5. 선행된 항중의 어느 한 항의 자기헤드에 있어서. 페라이트가 단결정 페라이트인 것을 특징으로하는 자기헤드.
  6. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019830005980A 1982-12-20 1983-12-17 페라이트 코어를 가진 자기헤드 KR910007871B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL82-4897 1982-12-20
NL8204897 1982-12-20
NL8204897A NL8204897A (nl) 1982-12-20 1982-12-20 Magneetkop met een kern van mn-zn-co-ferroferriet.

Publications (2)

Publication Number Publication Date
KR840007774A true KR840007774A (ko) 1984-12-20
KR910007871B1 KR910007871B1 (ko) 1991-10-02

Family

ID=19840771

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019830005980A KR910007871B1 (ko) 1982-12-20 1983-12-17 페라이트 코어를 가진 자기헤드

Country Status (9)

Country Link
US (1) US4719148A (ko)
JP (1) JPS59135617A (ko)
KR (1) KR910007871B1 (ko)
AT (1) AT379698B (ko)
DE (1) DE3344344A1 (ko)
FR (1) FR2538150A1 (ko)
GB (1) GB2132404B (ko)
HK (1) HK6087A (ko)
NL (1) NL8204897A (ko)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8601372A (nl) * 1986-05-29 1987-12-16 Philips Nv Magnetisch materiaal, magnetisch registratiemedium en werkwijze voor de vervaardiging van een magnetisch materiaal.
DE3619746A1 (de) * 1986-06-12 1987-12-17 Basf Ag Superparamagnetische feststoffteilchen
JPS63117997A (ja) * 1986-11-04 1988-05-21 Tokin Corp 単結晶フエライト
DE68915569T2 (de) * 1988-02-25 1994-09-29 Nippon Mining Co Unmagnetisches Substrat eines Magnetkopfs, Magnetkopf und Substratherstellungsverfahren.
US5049454A (en) * 1988-07-04 1991-09-17 U.S. Philips Corporation Monocrystalline MnZn-ferroferrite material having a high content of Zn, and a magnetic head manufactured from said material
CA1334447C (en) * 1988-08-03 1995-02-14 Digital Equipment Corporation Perpendicular anisotropy in thin film devices
US5626789A (en) * 1991-09-11 1997-05-06 American Research Corp. Of Virginia Ferrimagnetic core materials for megahertz frequency high flux density transformers and inductors
CN103077807B (zh) * 2011-10-26 2016-05-18 Tdk株式会社 铁氧体铁芯和变压器

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3078234A (en) * 1958-04-24 1963-02-19 Jr Charles M Davis Magnetostrictive ferrite
US3100158A (en) * 1960-11-02 1963-08-06 Rca Corp Methods for obtaining films of magnetic spinel crystals on substrates
GB998848A (ko) * 1961-01-27 1965-07-21 Shuichi Iida
NL276431A (ko) * 1962-03-26
US3236777A (en) * 1963-04-12 1966-02-22 Ampex Nickel-manganese-ferrous ferrite
NL296505A (ko) * 1963-08-09
US3375195A (en) * 1966-11-14 1968-03-26 Philips Corp Electromechanical transducer employing piezomagnetic manganese ferrous ferrite
NL170678C (nl) * 1970-06-26 1982-12-01 Philips Nv Werkwijze ter vervaardiging van een uit een zacht-magnetisch ferriet bestaande magneetkern.
US4096080A (en) * 1973-12-26 1978-06-20 Agence Nationale De Valorisation De La Recherche (Anvar) Solid solutions of magnetic oxides and method of preparation
US4179387A (en) * 1974-03-12 1979-12-18 Fuji Photo Film Co., Ltd. Process for producing magnetic FE oxide
JPS5853493B2 (ja) * 1975-07-02 1983-11-29 富士写真フイルム株式会社 キヨウジセイフンマツノセイホウ
DE2903593C3 (de) * 1979-01-31 1982-05-06 Bayer Ag, 5090 Leverkusen Kobalt-dotierte ferrimagnetische Eisenoxide und Verfahren zu deren Herstellung
JPS6047240B2 (ja) * 1980-05-16 1985-10-21 ソニー株式会社 フエライト単結晶
JPS56163518A (en) * 1980-05-16 1981-12-16 Hitachi Ltd Magnetic head
NL8200174A (nl) * 1982-01-19 1983-08-16 Philips Nv Magneetkop van zink-ferro-ferriet.
NL8200480A (nl) * 1982-02-09 1983-09-01 Philips Nv Magneetkop.

Also Published As

Publication number Publication date
NL8204897A (nl) 1984-07-16
JPS59135617A (ja) 1984-08-03
GB2132404A (en) 1984-07-04
AT379698B (de) 1986-02-10
GB2132404B (en) 1986-08-28
HK6087A (en) 1987-01-23
US4719148A (en) 1988-01-12
KR910007871B1 (ko) 1991-10-02
ATA442783A (de) 1985-06-15
FR2538150A1 (fr) 1984-06-22
JPH024050B2 (ko) 1990-01-25
DE3344344A1 (de) 1984-06-20
GB8333516D0 (en) 1984-01-25

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