NL8204897A - Magneetkop met een kern van mn-zn-co-ferroferriet. - Google Patents

Magneetkop met een kern van mn-zn-co-ferroferriet. Download PDF

Info

Publication number
NL8204897A
NL8204897A NL8204897A NL8204897A NL8204897A NL 8204897 A NL8204897 A NL 8204897A NL 8204897 A NL8204897 A NL 8204897A NL 8204897 A NL8204897 A NL 8204897A NL 8204897 A NL8204897 A NL 8204897A
Authority
NL
Netherlands
Prior art keywords
magnetic
magnetic head
core
ferrite
content
Prior art date
Application number
NL8204897A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL8204897A priority Critical patent/NL8204897A/nl
Priority to US06/470,832 priority patent/US4719148A/en
Priority to DE19833344344 priority patent/DE3344344A1/de
Priority to GB08333516A priority patent/GB2132404B/en
Priority to KR1019830005980A priority patent/KR910007871B1/ko
Priority to JP58237215A priority patent/JPS59135617A/ja
Priority to FR8320280A priority patent/FR2538150A1/fr
Priority to AT0442783A priority patent/AT379698B/de
Publication of NL8204897A publication Critical patent/NL8204897A/nl
Priority to HK60/87A priority patent/HK6087A/xx

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
    • G11B5/133—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

Landscapes

  • 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)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
NL8204897A 1982-12-20 1982-12-20 Magneetkop met een kern van mn-zn-co-ferroferriet. NL8204897A (nl)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL8204897A NL8204897A (nl) 1982-12-20 1982-12-20 Magneetkop met een kern van mn-zn-co-ferroferriet.
US06/470,832 US4719148A (en) 1982-12-20 1983-02-28 Magnetic head having a core of Mn-Zn-Co ferrous ferrite
DE19833344344 DE3344344A1 (de) 1982-12-20 1983-12-08 Magnetkopf mit einem kern aus mn-zn-co-ferroferrit
GB08333516A GB2132404B (en) 1982-12-20 1983-12-16 Magnetic head having a ferrite core
KR1019830005980A KR910007871B1 (ko) 1982-12-20 1983-12-17 페라이트 코어를 가진 자기헤드
JP58237215A JPS59135617A (ja) 1982-12-20 1983-12-17 磁気ヘツド
FR8320280A FR2538150A1 (fr) 1982-12-20 1983-12-19 Tete magnetique presentant un noyau en ferroferrite de mn-zn-co
AT0442783A AT379698B (de) 1982-12-20 1983-12-19 Magnetkopf fuer eine magnetische aufnahme- und wiedergabevorrichtung, der einen kern aus mn-zn- ferrit mit zwei kernteilen enthaelt
HK60/87A HK6087A (en) 1982-12-20 1987-01-15 Magnetic head having a ferrite core

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
NL8204897A true NL8204897A (nl) 1984-07-16

Family

ID=19840771

Family Applications (1)

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

Country Status (9)

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

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 (de) * 1961-01-27 1965-07-21 Shuichi Iida
BE630061A (de) * 1962-03-26
US3236777A (en) * 1963-04-12 1966-02-22 Ampex Nickel-manganese-ferrous ferrite
NL296505A (de) * 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
ATA442783A (de) 1985-06-15
DE3344344A1 (de) 1984-06-20
HK6087A (en) 1987-01-23
JPS59135617A (ja) 1984-08-03
GB2132404A (en) 1984-07-04
FR2538150A1 (fr) 1984-06-22
KR840007774A (ko) 1984-12-20
GB8333516D0 (en) 1984-01-25
US4719148A (en) 1988-01-12
KR910007871B1 (ko) 1991-10-02
JPH024050B2 (de) 1990-01-25
AT379698B (de) 1986-02-10
GB2132404B (en) 1986-08-28

Similar Documents

Publication Publication Date Title
NL8204897A (nl) Magneetkop met een kern van mn-zn-co-ferroferriet.
US4582623A (en) Barium ferrite magnetic powder and recording medium employing the same
JP2784794B2 (ja) 磁性酸化鉄粒子粉末
NL8200480A (nl) Magneetkop.
KR0135419B1 (ko) 고함량 Zn의 단결정 MnZn-페로페라이트 재료와 이 재료로 제조된 자기 헤드
JPS6242337B2 (de)
NL8200174A (nl) Magneetkop van zink-ferro-ferriet.
US3376397A (en) Pole piece for magnetic recording head
EP0541156B1 (de) Magnetkopf mit Kernteil aus polykristallinem MnZn-Ferroferrit
Stoppels et al. Monocrystalline high-saturation magnetization ferrites for video recording head application: I. Zn ferrous ferrites
JPH0244099A (ja) 単結晶フェライト、それを用いた磁気ヘッド及び単結晶フェライトの製造方法
US6088198A (en) Magnetic head having a core portion of polycrystalline MnZn ferroferrite
JP2000048422A (ja) 光磁気記録用磁気ヘッドおよび光磁気記録装置
Asano et al. The magnetic switching volume of cobalt-modified iron oxides and its application to improved video properties
Kaganowicz et al. Influence of zinc on cobalt substituted magnetic recording media
KR970005663B1 (ko) 자기헤드용 단결정 페라이트
Mizushima et al. Soft Magnetic Properties of Single Crystalline Mn–Zn Ferrites Containing Er2O3
JPS6255904A (ja) 六方晶系フエライト磁性粉末
EP0881503A2 (de) Magnetoimpedanz Element somit Magnetkopf, elektronischer Kompass und Auto Kompensator unter Verwendung dieses Elements
JPH0561206B2 (de)
JPS6374107A (ja) 磁気ヘツド
JPH04134603A (ja) 垂直磁気ヘッド
JPH02311395A (ja) 単結晶フェライト
JPS5990222A (ja) 薄膜磁気再生ヘツド
JPH06243414A (ja) 磁気ヘッド

Legal Events

Date Code Title Description
A1B A search report has been drawn up
A85 Still pending on 85-01-01
BV The patent application has lapsed