GB1234378A - - Google Patents

Info

Publication number
GB1234378A
GB1234378A GB1234378DA GB1234378A GB 1234378 A GB1234378 A GB 1234378A GB 1234378D A GB1234378D A GB 1234378DA GB 1234378 A GB1234378 A GB 1234378A
Authority
GB
United Kingdom
Prior art keywords
particles
metal
optionally
june
salts
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
Other languages
English (en)
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 filed Critical
Publication of GB1234378A publication Critical patent/GB1234378A/en
Expired 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
    • H01F1/09—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 mixtures of metallic and non-metallic particles; metallic particles having oxide skin
    • 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
    • H01F1/04—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 metals or alloys
    • H01F1/06—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 metals or alloys in the form of particles, e.g. powder
    • 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
    • H01F1/04—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 metals or alloys
    • H01F1/06—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 metals or alloys in the form of particles, e.g. powder
    • H01F1/061—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 metals or alloys in the form of particles, e.g. powder with a protective layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
GB1234378D 1968-06-25 1969-06-24 Expired GB1234378A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73973268A 1968-06-25 1968-06-25

Publications (1)

Publication Number Publication Date
GB1234378A true GB1234378A (enrdf_load_stackoverflow) 1971-06-03

Family

ID=24973549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1234378D Expired GB1234378A (enrdf_load_stackoverflow) 1968-06-25 1969-06-24

Country Status (7)

Country Link
US (1) US3567525A (enrdf_load_stackoverflow)
BE (1) BE735055A (enrdf_load_stackoverflow)
DE (1) DE1931521B2 (enrdf_load_stackoverflow)
FR (1) FR2014221A1 (enrdf_load_stackoverflow)
GB (1) GB1234378A (enrdf_load_stackoverflow)
NL (1) NL6909421A (enrdf_load_stackoverflow)
SE (1) SE344383B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2445597A1 (fr) * 1978-12-29 1980-07-25 Exxon Research Engineering Co Composition comprenant des particules d'alliages magnetiques utiles pour preparer des compositions solides magnetisables, et procede pour son obtention
GB2131047A (en) * 1982-11-29 1984-06-13 Kanto Denka Kogyo Kk Ferromagnetic metallic powders useful for magnetic recording and processes for producing said metallic powders

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3661556A (en) * 1969-03-03 1972-05-09 Du Pont Method of making ferromagnetic metal powders
US3663318A (en) * 1970-10-05 1972-05-16 Du Pont Process for making ferromagnetic metal powders
US3855016A (en) * 1971-03-24 1974-12-17 Graham Magnetics Inc Acicular cobalt powders having high squarenesss ratios
US3755008A (en) * 1971-03-24 1973-08-28 Graham Magnetics Inc Process for enhancing magnetic properties of metal powder by heat treating with salt
US3859130A (en) * 1971-04-15 1975-01-07 Ibm Magnetic alloy particle compositions and method of manufacture
JPS5029157B1 (enrdf_load_stackoverflow) * 1971-05-27 1975-09-20
US3837912A (en) * 1972-05-22 1974-09-24 Minnesota Mining & Mfg Environmentally stable iron-based magnetic recording medium
US3865627A (en) 1972-05-22 1975-02-11 Minnesota Mining & Mfg Magnetic recording medium incorporating fine acicular iron-based particles
JPS59962B2 (ja) * 1973-08-15 1984-01-10 富士写真フイルム株式会社 ジキキロクバイタイヨウフンマツジセイザイリヨウ オヨビ セイゾウホウホウ
JPS5633775B2 (enrdf_load_stackoverflow) * 1973-08-18 1981-08-06
US4054530A (en) * 1973-09-28 1977-10-18 Graham Magnetics, Inc. Iron-nickel-cobalt magnetic powder and tape prepared therefrom
US3954520A (en) * 1974-03-11 1976-05-04 International Business Machines Corporation Process for the production of magnetic materials
US3899369A (en) * 1974-03-11 1975-08-12 Ibm Process for the production of magnetic materials having selective coercivity by using selected D.C. magnetic fields
US3975217A (en) * 1974-03-29 1976-08-17 Sherritt Gordon Mines Limited Finely divided magnetic cobalt powder
DE2434096C2 (de) * 1974-07-16 1985-10-17 Basf Ag, 6700 Ludwigshafen Nadelförmige, vorwiegend aus Eisen bestehende ferromagnetische Metallteilchen und Verfahren zu ihrer Herstellung
JPS5133758A (enrdf_load_stackoverflow) * 1974-09-17 1976-03-23 Fuji Photo Film Co Ltd
JPS5816248B2 (ja) * 1975-11-05 1983-03-30 富士写真フイルム株式会社 シンキナジキキロクタイ
CH603802A5 (enrdf_load_stackoverflow) * 1975-12-02 1978-08-31 Bbc Brown Boveri & Cie
JPS5376957A (en) * 1976-12-20 1978-07-07 Hitachi Maxell Magnetic metal iron powder and said manufacturing process
DE2743298A1 (de) * 1977-09-27 1979-04-05 Basf Ag Ferromagnetische, im wesentlichen aus eisen bestehende metallteilchen und verfahren zu deren herstellung
JPS54122663A (en) * 1978-03-16 1979-09-22 Kanto Denka Kogyo Kk Production of magnetic powder for magnetic recording based on iron
JPS5853022A (ja) 1981-09-24 1983-03-29 Hitachi Maxell Ltd 磁気記録媒体
DE3707522A1 (de) * 1986-03-12 1987-09-24 Matsushita Electric Ind Co Ltd Magnetischer nitridfilm
US4752344A (en) * 1986-12-22 1988-06-21 International Business Machines Corporation Magnetic layer and method of manufacture
EP0379776B1 (en) * 1989-01-27 1994-10-12 Toda Kogyo Corp. Acicular magnetic iron based alloy particles for magnetic recording and method of producing the same
US5238483A (en) * 1989-01-27 1993-08-24 Toda Kogyo Corporation Acicular magnetic iron based alloy particles for magnetic recording and method of producing the same
US5736921A (en) * 1994-03-23 1998-04-07 Sanyo Electric Co., Ltd. Magnetoresistive element
US5656381A (en) * 1993-03-24 1997-08-12 Sanyo Electric Co., Ltd. Magnetoresistance-effect element
US5585198A (en) * 1993-10-20 1996-12-17 Sanyo Electric Co., Ltd. Magnetorsistance effect element
US5695858A (en) * 1994-03-23 1997-12-09 Sanyo Electric Co., Ltd. Magnetoresistive element
JPH0849062A (ja) * 1994-08-04 1996-02-20 Sanyo Electric Co Ltd 磁気抵抗効果膜
JPH08130337A (ja) * 1994-09-09 1996-05-21 Sanyo Electric Co Ltd 磁気抵抗素子及びその製造方法
DE19932473A1 (de) * 1999-07-12 2001-01-25 Vacuumschmelze Gmbh Korrosionsfreie Eisen-Nickel-Legierung für Fehlerstromschutzschalter
JP5280500B2 (ja) * 2011-08-25 2013-09-04 太陽誘電株式会社 巻線型インダクタ
CN113774217A (zh) * 2021-08-19 2021-12-10 南方科技大学 电子产品浸出液中多种金属离子的同步回收方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2445597A1 (fr) * 1978-12-29 1980-07-25 Exxon Research Engineering Co Composition comprenant des particules d'alliages magnetiques utiles pour preparer des compositions solides magnetisables, et procede pour son obtention
GB2131047A (en) * 1982-11-29 1984-06-13 Kanto Denka Kogyo Kk Ferromagnetic metallic powders useful for magnetic recording and processes for producing said metallic powders

Also Published As

Publication number Publication date
BE735055A (enrdf_load_stackoverflow) 1969-12-24
FR2014221A1 (enrdf_load_stackoverflow) 1970-04-17
NL6909421A (enrdf_load_stackoverflow) 1969-12-30
US3567525A (en) 1971-03-02
DE1931521A1 (de) 1971-04-22
SE344383B (enrdf_load_stackoverflow) 1972-04-10
DE1931521B2 (de) 1971-10-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees