EP0535902A3 - Internal closed magnetic circuit anisotropic magnet and method - Google Patents
Internal closed magnetic circuit anisotropic magnet and method Download PDFInfo
- Publication number
- EP0535902A3 EP0535902A3 EP19920308844 EP92308844A EP0535902A3 EP 0535902 A3 EP0535902 A3 EP 0535902A3 EP 19920308844 EP19920308844 EP 19920308844 EP 92308844 A EP92308844 A EP 92308844A EP 0535902 A3 EP0535902 A3 EP 0535902A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- magnetic circuit
- closed magnetic
- anisotropic magnet
- internal closed
- internal
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0273—Imparting anisotropy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0205—Magnetic circuits with PM in general
- H01F7/021—Construction of PM
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25161091 | 1991-09-30 | ||
JP251610/91 | 1991-09-30 | ||
JP306310/91 | 1991-11-21 | ||
JP30631091A JPH05144650A (ja) | 1991-11-21 | 1991-11-21 | 磁石の製造方法 |
JP11172192 | 1992-04-30 | ||
JP111721/92 | 1992-04-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0535902A2 EP0535902A2 (de) | 1993-04-07 |
EP0535902A3 true EP0535902A3 (en) | 1993-11-03 |
Family
ID=27312027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19920308844 Withdrawn EP0535902A3 (en) | 1991-09-30 | 1992-09-29 | Internal closed magnetic circuit anisotropic magnet and method |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0535902A3 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6304162B1 (en) * | 1999-06-22 | 2001-10-16 | Toda Kogyo Corporation | Anisotropic permanent magnet |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2833517A1 (de) * | 1977-08-01 | 1979-02-08 | Matsushita Electric Ind Co Ltd | Magnetsystem |
US4954800A (en) * | 1986-05-20 | 1990-09-04 | Canon Kabushiki Kaisha | Magnet and method of manufacturing the same |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5924524B2 (ja) * | 1979-07-16 | 1984-06-09 | 松下電器産業株式会社 | 異方性マグネットを用いた磁気回路 |
JPH0828293B2 (ja) * | 1987-04-07 | 1996-03-21 | 日立金属株式会社 | 円筒状永久磁石、それを用いたモータ及びその製造方法 |
-
1992
- 1992-09-29 EP EP19920308844 patent/EP0535902A3/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2833517A1 (de) * | 1977-08-01 | 1979-02-08 | Matsushita Electric Ind Co Ltd | Magnetsystem |
US4954800A (en) * | 1986-05-20 | 1990-09-04 | Canon Kabushiki Kaisha | Magnet and method of manufacturing the same |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 13, no. 216 (E-760)19 May 1989 & JP-A-01 027 208 ( HITACHI METALS LTD. ) 30 January 1989 * |
PATENT ABSTRACTS OF JAPAN vol. 5, no. 63 (E-54)(735) 28 April 1981 & JP-A-56 013 705 ( MATSUSHITA DENKI SANGYO K.K. ) 10 February 1981 * |
Also Published As
Publication number | Publication date |
---|---|
EP0535902A2 (de) | 1993-04-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR NL |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE FR NL |
|
17P | Request for examination filed |
Effective date: 19940208 |
|
18W | Application withdrawn |
Withdrawal date: 19950505 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
R18W | Application withdrawn (corrected) |
Effective date: 19950505 |