AT196629B - Permanent magnet and method of making the same - Google Patents

Permanent magnet and method of making the same

Info

Publication number
AT196629B
AT196629B AT196629DA AT196629B AT 196629 B AT196629 B AT 196629B AT 196629D A AT196629D A AT 196629DA AT 196629 B AT196629 B AT 196629B
Authority
AT
Austria
Prior art keywords
making
same
permanent magnet
permanent
magnet
Prior art date
Application number
Other languages
German (de)
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26641578&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AT196629(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Philips Nv filed Critical Philips Nv
Application granted granted Critical
Publication of AT196629B publication Critical patent/AT196629B/en

Links

Classifications

    • 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
    • C04B35/2683—Other ferrites containing alkaline earth metals or lead
    • 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
    • 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
    • H01F1/11—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 in the form of particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
AT196629D 1950-09-19 1951-07-12 Permanent magnet and method of making the same AT196629B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL156104 1950-09-19
NL160732 1951-04-23

Publications (1)

Publication Number Publication Date
AT196629B true AT196629B (en) 1958-03-25

Family

ID=26641578

Family Applications (1)

Application Number Title Priority Date Filing Date
AT196629D AT196629B (en) 1950-09-19 1951-07-12 Permanent magnet and method of making the same

Country Status (9)

Country Link
US (1) US2762777A (en)
AT (1) AT196629B (en)
BE (1) BE504686A (en)
CH (1) CH306773A (en)
DE (1) DE977105C (en)
FR (1) FR1048792A (en)
GB (1) GB708127A (en)
LU (1) LU30876A1 (en)
NL (2) NL87161C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1233313B (en) * 1961-06-02 1967-01-26 Commissariat Energie Atomique Process for sintering metal oxide powders
DE1696388B1 (en) * 1960-10-18 1970-01-29 Westinghouse Electric Corp Permanent magnet material based on a modified strontium ferrite with magnetoplumbite structure and process for its production

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL87162C (en) * 1950-09-19
DE977273C (en) * 1951-04-23 1965-09-09 Philips Nv Ferromagnetic core pre-magnetized by a permanent magnet with adjustable pre-magnetization
DE958044C (en) * 1952-04-22 1957-02-14 Eisen & Stahlind Ag Permanent magnet system for eddy current damping
NL93756C (en) * 1952-07-07
US2778803A (en) * 1953-02-06 1957-01-22 Aerovox Corp Magnetically hard materials
DE1026013B (en) * 1953-04-11 1958-03-13 Philips Nv Method and device for the production of a multi-pole, anisotropic, cylindrical, sintered permanent magnet
US2900344A (en) * 1953-07-29 1959-08-18 Philips Corp Making anisotropic permanent magnets
DE1010440B (en) * 1954-03-24 1957-06-13 Licentia Gmbh Permanent magnet material based on oxide
DE1095398B (en) * 1954-10-02 1960-12-22 Philips Nv Method for magnetizing a permanent magnetic body
FR1114010A (en) * 1954-11-09 1956-04-06 Audax Sintered mixed oxide permanent magnets
US3001943A (en) * 1954-11-18 1961-09-26 Indiana General Corp Process of heat treating ferromagnetic material
NL86918C (en) * 1954-12-21
US2854412A (en) * 1954-12-23 1958-09-30 Philips Corp Method of making a permanent magnet
LU34570A1 (en) * 1955-08-10
GB842005A (en) * 1955-08-10 1960-07-20 Philips Electrical Ind Ltd Improvements in or relating to ferromagnetic materials
NL88282C (en) * 1955-08-10 1958-05-16
NL97514C (en) * 1956-01-24 1961-04-17
DE1068610B (en) * 1956-03-06 1959-11-05 LIC1ENTIA Patent-VerwaHtungs-G.mib.H., Hamburg Process for the production of permanent magnets on an oxide basis
US3002929A (en) * 1956-05-01 1961-10-03 Bell Telephone Labor Inc Process for making composite ferrites
DE1236391B (en) * 1956-05-16 1967-03-09 Philips Nv Process for the production of a ferromagnetic ferrite material with a hexagonal crystal structure
NL112994C (en) * 1956-06-02 1966-07-15
US2862132A (en) * 1956-06-08 1958-11-25 Westinghouse Electric Corp Spark gap device
DE1092141B (en) * 1956-09-19 1960-11-03 Philips Nv Elongated permanent magnet with changing magnetization along the length of the magnet
NL92523C (en) * 1956-10-19 1959-10-15
CH363104A (en) * 1957-02-09 1962-07-15 Baermann Max Permanent magnetic closure, sealing or adhesive element and method for producing the same
NL111324C (en) * 1957-05-13 1965-06-15
NL99528C (en) * 1957-06-22 1961-11-15
NL95813C (en) * 1957-10-21 1960-11-15
US2959832A (en) * 1957-10-31 1960-11-15 Baermann Max Flexible or resilient permanent magnets
NL114061C (en) * 1957-12-31
US3184807A (en) * 1958-11-24 1965-05-25 Goodrich Co B F Gasket containing a permanent magnet
US3042617A (en) * 1958-12-31 1962-07-03 Rca Corp Magnetic bodies and methods of preparation thereof
US3185986A (en) * 1959-03-05 1965-05-25 James R Mccaughna Microwave absorber and method of manufacture
US2927898A (en) * 1959-03-30 1960-03-08 Licentia Gmbh Permanent magnet material
US3113109A (en) * 1959-10-07 1963-12-03 Du Pont Ferromagnetic material produced from ferric oxide and barium halide or strontium halide, and process for making same
US3049404A (en) * 1960-02-03 1962-08-14 Jr William L Wade Method of making ferromagnetic barium ferrites
US3093589A (en) * 1961-05-11 1963-06-11 Columbian Carbon Magnetic material
US3151703A (en) * 1962-01-02 1964-10-06 Gen Motors Corp Transmission
DE1471047B1 (en) * 1962-07-31 1969-11-06 Westinghouse Electric Corp Permanent magnet material with a primary crystal phase based on barium, strontium and / or lead ferrite, as well as a process for the production of such a material
NL296037A (en) * 1962-08-01
US3855374A (en) * 1970-07-02 1974-12-17 Gen Motors Corp Method of making magnetically-anisotropic permanent magnets
US4000004A (en) * 1972-10-23 1976-12-28 Agency Of Industrial Science & Technology Electrode for alkaline storage battery and method for manufacture thereof
NL8002990A (en) * 1980-05-23 1981-12-16 Philips Nv METHOD FOR MANUFACTURING AN ANISOTROPIC PERMANENT OXIDE BASED MAGNET
US4440713A (en) * 1982-09-30 1984-04-03 International Business Machines Corp. Process for making fine magnetic ferrite powder and dense ferrite blocks
JP4391897B2 (en) 2004-07-01 2009-12-24 インターメタリックス株式会社 Manufacturing method and manufacturing apparatus for magnetic anisotropic rare earth sintered magnet

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US256023A (en) * 1882-04-04 Refrigerator cooled by ammonia and other volatile liquids
DE227787C (en) *
US239838A (en) * 1881-04-05 Table
DE226347C (en) *
US1997193A (en) * 1930-12-25 1935-04-09 Mitsubishi Electric Corp Permanent magnet and method of manufacturing same
US1976230A (en) * 1930-12-25 1934-10-09 Mitsubishi Electric Corp Permanent magnet and method of manufacturing same
DE723872C (en) * 1932-07-09 1942-08-12 Mitsubishi Electric Corp Permanent magnet
US2132404A (en) * 1934-02-17 1938-10-11 Reginald S Dean Method of separating magnetic material
DE653945C (en) * 1934-07-08 1937-12-07 I G Farbenindustrie Akt Ges Process for the representation of plastic masses
DE656966C (en) * 1934-07-12 1938-02-21 Dynamit Act Ges Vormals Alfred Permanent magnet and process for its manufacture
NL63875C (en) * 1943-07-01
AT165288B (en) * 1943-08-21 1950-02-10 Electro Chimie Metal Process for the production of permanent magnets on an oxide basis
BE456273A (en) * 1943-08-21
AT165289B (en) * 1944-07-26 1950-02-10 Electro Chimie Metal Process for the production of an iron powder suitable for permanent magnets and permanent magnets produced from this powder
NL87162C (en) * 1950-09-19

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1696388B1 (en) * 1960-10-18 1970-01-29 Westinghouse Electric Corp Permanent magnet material based on a modified strontium ferrite with magnetoplumbite structure and process for its production
DE1233313B (en) * 1961-06-02 1967-01-26 Commissariat Energie Atomique Process for sintering metal oxide powders

Also Published As

Publication number Publication date
GB708127A (en) 1954-04-28
NL87161C (en)
CH306773A (en) 1955-04-30
FR1048792A (en) 1953-12-23
LU30876A1 (en)
BE504686A (en)
US2762777A (en) 1956-09-11
NL87162C (en)
DE977105C (en) 1965-02-11

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