DE3922997C2 - - Google Patents

Info

Publication number
DE3922997C2
DE3922997C2 DE3922997A DE3922997A DE3922997C2 DE 3922997 C2 DE3922997 C2 DE 3922997C2 DE 3922997 A DE3922997 A DE 3922997A DE 3922997 A DE3922997 A DE 3922997A DE 3922997 C2 DE3922997 C2 DE 3922997C2
Authority
DE
Germany
Prior art keywords
ppm
mol
cao
content
components
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 - Fee Related
Application number
DE3922997A
Other languages
German (de)
English (en)
Other versions
DE3922997A1 (de
Inventor
Hikohiro Sagamihara Kanagawa Jp Togane
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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
Priority claimed from JP63178718A external-priority patent/JPH0710744B2/ja
Priority claimed from JP63205990A external-priority patent/JP2620959B2/ja
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of DE3922997A1 publication Critical patent/DE3922997A1/de
Application granted granted Critical
Publication of DE3922997C2 publication Critical patent/DE3922997C2/de
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/10—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Magnetic Ceramics (AREA)
  • Soft Magnetic Materials (AREA)
DE3922997A 1988-07-18 1989-07-12 Verlustarmes oxidmagnetisches material Granted DE3922997A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63178718A JPH0710744B2 (ja) 1988-07-18 1988-07-18 低損失酸化物磁性材料
JP63205990A JP2620959B2 (ja) 1988-08-19 1988-08-19 低損失酸化物磁性材料

Publications (2)

Publication Number Publication Date
DE3922997A1 DE3922997A1 (de) 1990-01-25
DE3922997C2 true DE3922997C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-02-18

Family

ID=26498805

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3922997A Granted DE3922997A1 (de) 1988-07-18 1989-07-12 Verlustarmes oxidmagnetisches material

Country Status (4)

Country Link
US (1) US4985167A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
KR (1) KR920001163B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3922997A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (3) GB2220935B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0716053B1 (en) * 1992-01-14 1999-03-31 Matsushita Electric Industrial Co., Ltd. An oxide magnetic material

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1122258A (fr) * 1955-02-03 1956-09-04 Centre Nat Rech Scient Matériau ferromagnétique et son procédé de fabrication
US2962444A (en) * 1956-01-19 1960-11-29 Centre Nat Rech Scient Ferromagnetic ceramic materials
GB923991A (en) * 1959-02-04 1963-04-18 Nippon Electric Co Oxide magnetic material
US3106534A (en) * 1960-01-26 1963-10-08 Nippon Electric Co Soft magnetic ferrite bodies of high permeability and small hysteresis losses
JPS5231555B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1967-07-25 1977-08-16
JPS565046B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1969-05-09 1981-02-03
DE2148554A1 (de) * 1970-10-07 1972-04-13 Philips Nv Verfahren zur Herstellung eines polykristallinen Ferritkoerpers
JP2609853B2 (ja) * 1986-11-05 1997-05-14 ティーディーケイ株式会社 データラインノイズフィルタ用フェライトコア

Also Published As

Publication number Publication date
KR900002356A (ko) 1990-02-28
US4985167A (en) 1991-01-15
GB9209763D0 (en) 1992-06-17
KR920001163B1 (ko) 1992-02-06
GB2253842A (en) 1992-09-23
GB8915563D0 (en) 1989-08-23
GB9209762D0 (en) 1992-06-17
GB2253843A (en) 1992-09-23
GB2253843B (en) 1992-12-23
GB2220935A (en) 1990-01-24
GB2253842B (en) 1992-12-23
GB2220935B (en) 1992-12-23
DE3922997A1 (de) 1990-01-25

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8363 Opposition against the patent
8368 Opposition refused due to inadmissibility
8339 Ceased/non-payment of the annual fee