DE59004054D1 - PERMANENT MAGNET. - Google Patents

PERMANENT MAGNET.

Info

Publication number
DE59004054D1
DE59004054D1 DE90912788T DE59004054T DE59004054D1 DE 59004054 D1 DE59004054 D1 DE 59004054D1 DE 90912788 T DE90912788 T DE 90912788T DE 59004054 T DE59004054 T DE 59004054T DE 59004054 D1 DE59004054 D1 DE 59004054D1
Authority
DE
Germany
Prior art keywords
permanent magnet
permanent
magnet
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
DE90912788T
Other languages
German (de)
Inventor
Sevi Gaiffi
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.)
Vacuumschmelze GmbH and Co KG
Original Assignee
CRUCIBLE MAGNETICS ELIZABETHTO
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=6388032&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE59004054(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by CRUCIBLE MAGNETICS ELIZABETHTO filed Critical CRUCIBLE MAGNETICS ELIZABETHTO
Application granted granted Critical
Publication of DE59004054D1 publication Critical patent/DE59004054D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01F1/04—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
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/058—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IVa elements, e.g. Gd2Fe14C
    • 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
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
DE90912788T 1989-08-28 1990-08-27 PERMANENT MAGNET. Expired - Fee Related DE59004054D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3928389A DE3928389A1 (en) 1989-08-28 1989-08-28 PERMANENT MAGNET

Publications (1)

Publication Number Publication Date
DE59004054D1 true DE59004054D1 (en) 1994-02-10

Family

ID=6388032

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3928389A Granted DE3928389A1 (en) 1989-08-28 1989-08-28 PERMANENT MAGNET
DE90912788T Expired - Fee Related DE59004054D1 (en) 1989-08-28 1990-08-27 PERMANENT MAGNET.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE3928389A Granted DE3928389A1 (en) 1989-08-28 1989-08-28 PERMANENT MAGNET

Country Status (4)

Country Link
EP (1) EP0489784B1 (en)
JP (1) JPH05500134A (en)
DE (2) DE3928389A1 (en)
WO (1) WO1991003823A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5147473A (en) * 1989-08-25 1992-09-15 Dowa Mining Co., Ltd. Permanent magnet alloy having improved resistance to oxidation and process for production thereof
US5403408A (en) * 1992-10-19 1995-04-04 Inland Steel Company Non-uniaxial permanent magnet material
AU2001275775A1 (en) * 2000-08-03 2002-02-18 Sanei Kasei Co., Limited Nanocomposite permanent magnet

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1316375C (en) * 1982-08-21 1993-04-20 Masato Sagawa Magnetic materials and permanent magnets
JPS59132105A (en) * 1983-01-19 1984-07-30 Sumitomo Special Metals Co Ltd Permanent magnet
EP0106948B1 (en) * 1982-09-27 1989-01-25 Sumitomo Special Metals Co., Ltd. Permanently magnetizable alloys, magnetic materials and permanent magnets comprising febr or (fe,co)br (r=vave earth)
JP2537189B2 (en) * 1985-10-25 1996-09-25 株式会社東芝 permanent magnet
DE3637521A1 (en) * 1986-11-04 1988-05-11 Schramberg Magnetfab Permanent magnet and process for producing it
US4849035A (en) * 1987-08-11 1989-07-18 Crucible Materials Corporation Rare earth, iron carbon permanent magnet alloys and method for producing the same
NL8800740A (en) * 1987-12-11 1989-07-03 Philips Nv HARD-MAGNETIC MATERIAL FROM A RARE NATURAL METAL, IRON AND CARBON.
JPH01169904A (en) * 1987-12-24 1989-07-05 Taiyo Yuden Co Ltd Permanent magnet and manufacture thereof

Also Published As

Publication number Publication date
EP0489784A1 (en) 1992-06-17
DE3928389C2 (en) 1993-01-07
JPH05500134A (en) 1993-01-14
WO1991003823A1 (en) 1991-03-21
EP0489784B1 (en) 1993-12-29
DE3928389A1 (en) 1991-03-14

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8327 Change in the person/name/address of the patent owner

Owner name: VACUUMSCHMELZE GMBH & CO. KG, 63450 HANAU, DE

8339 Ceased/non-payment of the annual fee