KR880001197B1 - 자기헤드 - Google Patents

자기헤드 Download PDF

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Publication number
KR880001197B1
KR880001197B1 KR1019830000137A KR830000137A KR880001197B1 KR 880001197 B1 KR880001197 B1 KR 880001197B1 KR 1019830000137 A KR1019830000137 A KR 1019830000137A KR 830000137 A KR830000137 A KR 830000137A KR 880001197 B1 KR880001197 B1 KR 880001197B1
Authority
KR
South Korea
Prior art keywords
ferrite
zinc
magnetic head
magnetic
ferrous
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
Application number
KR1019830000137A
Other languages
English (en)
Korean (ko)
Other versions
KR840003508A (ko
Inventor
스토펠스 도에코
게라르두스 테오도루스 부넨 피터
에른스트 엔즈 울리히
아우구스티누스 허버투스 반 후프 레오나르두스
Original Assignee
엔.브이.필립스 글로아이람펜파브리켄
디.제이.싹커스
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 엔.브이.필립스 글로아이람펜파브리켄, 디.제이.싹커스 filed Critical 엔.브이.필립스 글로아이람펜파브리켄
Publication of KR840003508A publication Critical patent/KR840003508A/ko
Application granted granted Critical
Publication of KR880001197B1 publication Critical patent/KR880001197B1/ko
Expired legal-status Critical Current

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    • 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
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/16—Oxides
    • C30B29/22—Complex oxides
    • C30B29/26—Complex oxides with formula BMe2O4, wherein B is Mg, Ni, Co, Al, Zn, or Cd and Me is Fe, Ga, Sc, Cr, Co, or Al
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metallurgy (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Magnetic Heads (AREA)
  • Soft Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
KR1019830000137A 1982-01-19 1983-01-15 자기헤드 Expired KR880001197B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL174 1982-01-19
NL8200174A NL8200174A (nl) 1982-01-19 1982-01-19 Magneetkop van zink-ferro-ferriet.
NL8,200,174 1982-01-19

Publications (2)

Publication Number Publication Date
KR840003508A KR840003508A (ko) 1984-09-08
KR880001197B1 true KR880001197B1 (ko) 1988-07-02

Family

ID=19839096

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019830000137A Expired KR880001197B1 (ko) 1982-01-19 1983-01-15 자기헤드

Country Status (8)

Country Link
US (1) US4594628A (https=)
JP (1) JPS58125218A (https=)
KR (1) KR880001197B1 (https=)
DE (1) DE3300338A1 (https=)
FR (1) FR2520143A1 (https=)
GB (1) GB2115209B (https=)
HK (1) HK3186A (https=)
NL (1) NL8200174A (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8204897A (nl) * 1982-12-20 1984-07-16 Philips Nv Magneetkop met een kern van mn-zn-co-ferroferriet.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH260717A (de) * 1943-05-31 1949-03-31 Philips Nv Verfahren zur Herstellung eines magnetischen Kernes, und nach diesem Verfahren hergestellter magnetischer Kern.
US3027327A (en) * 1957-10-08 1962-03-27 Gen Electric Preparation of ferromagnetic ferrite materials
US3100158A (en) * 1960-11-02 1963-08-06 Rca Corp Methods for obtaining films of magnetic spinel crystals on substrates
US3557266A (en) * 1967-02-09 1971-01-19 Matsushita Electric Industrial Co Ltd Method of eliminating the porosity and controlling the grain size of a ferrite body by a two stage hot pressing treatment
NL7414706A (nl) * 1974-11-12 1976-05-14 Philips Nv Werkwijze voor het vervaardigen van een mangaan-zink-ferrietkern, in het bijzonder voor gebruik in magneetkoppen.

Also Published As

Publication number Publication date
JPH024049B2 (https=) 1990-01-25
GB2115209A (en) 1983-09-01
NL8200174A (nl) 1983-08-16
DE3300338A1 (de) 1983-07-28
FR2520143A1 (fr) 1983-07-22
GB2115209B (en) 1985-05-30
JPS58125218A (ja) 1983-07-26
US4594628A (en) 1986-06-10
KR840003508A (ko) 1984-09-08
GB8301026D0 (en) 1983-02-16
HK3186A (en) 1986-01-24

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