DE69203405D1 - Anisotropic rare earth magnet. - Google Patents

Anisotropic rare earth magnet.

Info

Publication number
DE69203405D1
DE69203405D1 DE69203405T DE69203405T DE69203405D1 DE 69203405 D1 DE69203405 D1 DE 69203405D1 DE 69203405 T DE69203405 T DE 69203405T DE 69203405 T DE69203405 T DE 69203405T DE 69203405 D1 DE69203405 D1 DE 69203405D1
Authority
DE
Germany
Prior art keywords
rare earth
earth magnet
anisotropic rare
anisotropic
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
DE69203405T
Other languages
German (de)
Other versions
DE69203405T2 (en
DE69203405T3 (en
Inventor
Takuo Chuo-Kenkyusho Takeshita
Ryoji Chuo-Kenkyusho Nakayama
Yoshinari Chuo-Kenkyusho Ishii
Tamotsu Chuo-Kenkyusho Ogawa
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.)
Diamet Corp
Original Assignee
Mitsubishi Materials 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27463963&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69203405(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP3060828A external-priority patent/JP2773444B2/en
Priority claimed from JP03060833A external-priority patent/JP3092672B2/en
Priority claimed from JP03060837A external-priority patent/JP3092673B2/en
Priority claimed from JP06086091A external-priority patent/JP3196224B2/en
Application filed by Mitsubishi Materials Corp filed Critical Mitsubishi Materials Corp
Publication of DE69203405D1 publication Critical patent/DE69203405D1/en
Publication of DE69203405T2 publication Critical patent/DE69203405T2/en
Application granted granted Critical
Publication of DE69203405T3 publication Critical patent/DE69203405T3/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
    • H01F1/057—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
    • H01F1/0576—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 pressed, e.g. hot working
    • 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
    • H01F1/0573—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 obtained by reduction or by hydrogen decrepitation or embrittlement

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
DE69203405T 1991-01-28 1992-01-28 Anisotropic rare earth magnet. Expired - Fee Related DE69203405T3 (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP60828/91 1991-01-28
JP3060828A JP2773444B2 (en) 1991-01-28 1991-01-28 Rare earth-Fe-B based anisotropic magnet
JP60833/91 1991-01-30
JP03060833A JP3092672B2 (en) 1991-01-30 1991-01-30 Rare earth-Fe-Co-B anisotropic magnet
JP03060837A JP3092673B2 (en) 1991-01-31 1991-01-31 Rare earth-Fe-B based anisotropic magnet
JP60837/91 1991-01-31
JP60860/91 1991-02-01
JP06086091A JP3196224B2 (en) 1991-02-01 1991-02-01 Rare earth-Fe-Co-B anisotropic magnet
PCT/JP1992/000073 WO1992013353A1 (en) 1991-01-28 1992-01-28 Anisotropic rare earth-iron-boron and rare earth-iron-cobalt-boron magnet

Publications (3)

Publication Number Publication Date
DE69203405D1 true DE69203405D1 (en) 1995-08-17
DE69203405T2 DE69203405T2 (en) 1996-02-15
DE69203405T3 DE69203405T3 (en) 2004-05-06

Family

ID=27463963

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69203405T Expired - Fee Related DE69203405T3 (en) 1991-01-28 1992-01-28 Anisotropic rare earth magnet.

Country Status (4)

Country Link
EP (1) EP0522177B2 (en)
CA (1) CA2079223A1 (en)
DE (1) DE69203405T3 (en)
WO (1) WO1992013353A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5352301A (en) * 1992-11-20 1994-10-04 General Motors Corporation Hot pressed magnets formed from anisotropic powders

Family Cites Families (14)

* 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
JPS61295342A (en) * 1985-06-24 1986-12-26 Hitachi Metals Ltd Manufacture of permanent magnet alloy
JPS6217149A (en) * 1985-07-16 1987-01-26 Sumitomo Special Metals Co Ltd Manufacture of sintered permanent magnet material
JPS62202506A (en) * 1985-11-21 1987-09-07 Tdk Corp Permanent magnet and manufacture thereof
JPS63178505A (en) * 1987-01-20 1988-07-22 Hitachi Metals Ltd Anisotropic r-fe-b-m system permanent magnet
JPS63211706A (en) * 1987-02-27 1988-09-02 Hitachi Metals Ltd Manufacture of magnetic powder for bond magnet
JPS63211705A (en) * 1987-02-27 1988-09-02 Hitachi Metals Ltd Anisotropic permanent magnet and manufacture thereof
JPS63235406A (en) * 1987-03-24 1988-09-30 Daido Steel Co Ltd Production of radially anisotropic permanent magnet
EP0304054B1 (en) * 1987-08-19 1994-06-08 Mitsubishi Materials Corporation Rare earth-iron-boron magnet powder and process of producing same
JPH01257308A (en) * 1987-09-09 1989-10-13 Hitachi Metals Ltd Magnet for voice coil motor
JPH07105301B2 (en) * 1987-09-10 1995-11-13 日立金属株式会社 Manufacturing method of magnetic anisotropy Nd-Fe-B magnet material
JP2803727B2 (en) * 1987-09-14 1998-09-24 大同特殊鋼株式会社 Manufacturing method of permanent magnet
JPH02138706A (en) * 1988-11-18 1990-05-28 Daido Steel Co Ltd Anisotropic permanent magnet
JPH02263404A (en) * 1989-04-04 1990-10-26 Hitachi Metals Ltd Rare earth group iron base permanent magnet

Also Published As

Publication number Publication date
CA2079223A1 (en) 1992-07-29
EP0522177A1 (en) 1993-01-13
WO1992013353A1 (en) 1992-08-06
EP0522177B1 (en) 1995-07-12
EP0522177B2 (en) 2003-07-30
DE69203405T2 (en) 1996-02-15
EP0522177A4 (en) 1993-09-15
DE69203405T3 (en) 2004-05-06

Similar Documents

Publication Publication Date Title
DE68904811D1 (en) RARE EARTH PERMANENT MAGNET.
DE3780876D1 (en) PERMANENT MAGNET BASED ON THE RARE EARTH.
DE3875183D1 (en) PERMANENT MAGNET.
FI921953A0 (en) MAGNETIC TAETNING.
DE59103162D1 (en) Magnet system.
FI921860A0 (en) SYNCHRONOUS MOTOR WITH PERMANENT MAGNET ROTORDER.
DE68907278D1 (en) SUPRALECTING MAGNETIC RESONANCE MAGNET.
DE3480673D1 (en) TIED RARE EARTH IRON MAGNET.
DE69201588D1 (en) Magnetic plate with permanent magnets.
DE59106870D1 (en) Magnetic field detector.
FR2680715B3 (en) PERMANENT MAGNETIC WORKPIECE STRUCTURE.
DE68910226D1 (en) Anisotropic rare earth permanent magnets and manufacturing processes.
EP0535901A3 (en) Lateral orientation anisotropic magnet
DE3887429D1 (en) Corrosion resistant rare earth magnet.
DE69221448T2 (en) Magnetic card
DE69201249D1 (en) Magnetic drive.
DE3888949D1 (en) Permanent magnet from rare earths.
DE3884439D1 (en) A RARE EARTH PERMANENT MAGNET.
FI923238A0 (en) CYSTEINAMID INNEHAOLLANDE PERMANENT.
FR2685144B1 (en) ELECTROMAGNETIC TRANSDUCER WITH MULTIPOLAR PERMANENT MAGNET.
DE3884817D1 (en) MAGNETICALLY ANISOTROPE SINTER MAGNET.
DE69101895D1 (en) Permanent magnet powder.
FR2680874B1 (en) MAGNETIC CIRCUITS.
DE69107193D1 (en) Magnetic plate with permanent magnets.
DE69203405D1 (en) Anisotropic rare earth magnet.

Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8327 Change in the person/name/address of the patent owner

Owner name: MITSUBISHI MATERIALS PMG CORP., NIIGATA, JP

8328 Change in the person/name/address of the agent

Representative=s name: MAIWALD PATENTANWALTS GMBH, 40221 DUESSELDORF

8328 Change in the person/name/address of the agent

Representative=s name: MICHALSKI HUETTERMANN & PARTNER PATENTANWAELTE, 40

8339 Ceased/non-payment of the annual fee