DE3877995T2 - Ein magnetfeld erzeugende vorrichtung. - Google Patents

Ein magnetfeld erzeugende vorrichtung.

Info

Publication number
DE3877995T2
DE3877995T2 DE8888302741T DE3877995T DE3877995T2 DE 3877995 T2 DE3877995 T2 DE 3877995T2 DE 8888302741 T DE8888302741 T DE 8888302741T DE 3877995 T DE3877995 T DE 3877995T DE 3877995 T2 DE3877995 T2 DE 3877995T2
Authority
DE
Germany
Prior art keywords
magnetic field
generating device
field generating
magnetic
generating
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 - Lifetime
Application number
DE8888302741T
Other languages
English (en)
Other versions
DE3877995D1 (de
Inventor
Toshinobu Yamazaki Se Miyamoto
Hideya Yamazaki Seisak Sakurai
Hirofumi Yamazaki Takabayashi
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.)
Neomax Co Ltd
Original Assignee
Sumitomo Special Metals Co Ltd
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 by Sumitomo Special Metals Co Ltd filed Critical Sumitomo Special Metals Co Ltd
Publication of DE3877995D1 publication Critical patent/DE3877995D1/de
Application granted granted Critical
Publication of DE3877995T2 publication Critical patent/DE3877995T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0278—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/383—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent magnets
DE8888302741T 1987-03-27 1988-03-28 Ein magnetfeld erzeugende vorrichtung. Expired - Lifetime DE3877995T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62075689A JPS63241905A (ja) 1987-03-27 1987-03-27 磁界発生装置

Publications (2)

Publication Number Publication Date
DE3877995D1 DE3877995D1 (de) 1993-03-18
DE3877995T2 true DE3877995T2 (de) 1993-07-15

Family

ID=13583417

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888302741T Expired - Lifetime DE3877995T2 (de) 1987-03-27 1988-03-28 Ein magnetfeld erzeugende vorrichtung.

Country Status (4)

Country Link
US (1) US4818966A (de)
EP (1) EP0284439B1 (de)
JP (1) JPS63241905A (de)
DE (1) DE3877995T2 (de)

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US5320103A (en) * 1987-10-07 1994-06-14 Advanced Techtronics, Inc. Permanent magnet arrangement
US5115340A (en) * 1988-09-30 1992-05-19 Amoco Corporation High average power Faraday isolator
US4943774A (en) * 1989-06-01 1990-07-24 General Atomics Magnetic field control apparatus
US5097240A (en) * 1989-06-16 1992-03-17 Sumitomo Special Metal Co., Ltd. Magnetic field generating device for esr system
JPH03131234A (ja) * 1989-07-07 1991-06-04 Sumitomo Special Metals Co Ltd Ｍｒｉ用磁界発生装置
US5252924A (en) * 1991-11-18 1993-10-12 Sumitomo Special Metals Co., Ltd. Magnetic field generating apparatus for MRI
USRE35565E (en) * 1990-05-18 1997-07-22 Sumitomo Special Metals Co., Ltd. Magnetic field generating apparatus for MRI
US5283544A (en) * 1990-09-29 1994-02-01 Sumitomo Special Metals Co., Ltd. Magnetic field generating device used for MRI
JP2767659B2 (ja) * 1991-12-17 1998-06-18 信越化学工業株式会社 磁場発生装置
WO1993018707A1 (en) * 1992-03-18 1993-09-30 Sumitomo Special Metals Company Limited Magnetic field generator for mri
JP3742662B2 (ja) * 1992-08-05 2006-02-08 ゼネラル・エレクトリック・カンパニイ 開放形磁気共鳴イメージングに適した磁石
US5389879A (en) * 1992-12-18 1995-02-14 Pulyer; Yuly M. MRI device having high field strength cylindrical magnet with two axially spaced electromagnets
US5428333A (en) * 1993-01-22 1995-06-27 New York University Method and apparatus for compensation of field distortion in a magnetic structure
EP0616230B1 (de) * 1993-03-15 1998-08-05 Siemens Aktiengesellschaft Homogenfeldmagnet mit über Korrekturluftspalte beabstandeten Polplatteneinrichtungen seiner Polschuhe
US5345208A (en) * 1993-05-26 1994-09-06 General Electric Company Pole face design for a C-shaped superconducting magnet
FI105293B (fi) * 1993-06-08 2000-07-14 Picker Nordstar Oy Magneettikuvaukseen käytettävän magneetin napakenkä
FI933834A (fi) * 1993-09-01 1995-03-02 Picker Nordstar Oy Magneettikuvauslaitteen napakenkä
DE69419096T2 (de) * 1993-09-29 1999-10-28 Oxford Magnet Tech Verbesserungen an Magneten der Bilderzeugung mittels magnetischer Resonanz
GB9320043D0 (en) * 1993-09-29 1993-11-17 Oxford Magnet Rechnology Limit Improvements in or relating to mri magnets
US5539366A (en) * 1994-07-27 1996-07-23 General Electric Company Magnet having contoured pole faces for magnetic field homogeneity
US5446434A (en) * 1994-07-27 1995-08-29 General Electric Company Magnet having pole faces with trapezoidal-shaped shims
GB2294120A (en) * 1994-09-22 1996-04-17 Univ California Eddy current-less pole tips for MRI magnets
JP2987750B2 (ja) * 1995-05-26 1999-12-06 日本信号株式会社 プレーナ型電磁アクチュエータ
US5855555A (en) * 1997-01-06 1999-01-05 Crowely; Christopher W. MRI system and method for imaging skin
US6002315A (en) * 1997-03-17 1999-12-14 General Atomics Inner cold-warm support structure for superconducting magnets
IT1298022B1 (it) * 1997-12-05 1999-12-20 Esaote Spa Magnete permanente per il rilevamento d'immagini in risonaza magnetica nucleare.
US6049264A (en) * 1997-12-09 2000-04-11 Siemens Automotive Corporation Electromagnetic actuator with composite core assembly
KR100362042B1 (ko) * 1998-04-14 2002-11-22 스미토모 도큐슈 긴조쿠 가부시키가이샤 Ｍｒｉ용 자계 발생 장치
US6331363B1 (en) 1998-11-06 2001-12-18 Honeywell International Inc. Bulk amorphous metal magnetic components
US6348275B1 (en) 1998-11-06 2002-02-19 Honeywell International Inc. Bulk amorphous metal magnetic component
US6346337B1 (en) 1998-11-06 2002-02-12 Honeywell International Inc. Bulk amorphous metal magnetic component
US6150819A (en) * 1998-11-24 2000-11-21 General Electric Company Laminate tiles for an MRI system and method and apparatus for manufacturing the laminate tiles
US6259252B1 (en) 1998-11-24 2001-07-10 General Electric Company Laminate tile pole piece for an MRI, a method manufacturing the pole piece and a mold bonding pole piece tiles
GB2355800B (en) * 1999-10-29 2004-10-27 Oxford Magnet Tech Improved magnet
GB9926621D0 (en) * 1999-11-11 2000-01-12 Magstim Co Ltd Stimulating coil
US7011718B2 (en) * 2001-04-25 2006-03-14 Metglas, Inc. Bulk stamped amorphous metal magnetic component
US6552639B2 (en) 2000-04-28 2003-04-22 Honeywell International Inc. Bulk stamped amorphous metal magnetic component
ITSV20000023A1 (it) 2000-06-15 2001-12-15 Esaote Spa Procedimento per la realizzazione di dispositivi di generazione di campi magnetici nelle macchine per il rilevamento di immagini in risonanz
US6744342B2 (en) * 2000-07-27 2004-06-01 Decristofaro Nicholas J. High performance bulk metal magnetic component
US6518867B2 (en) 2001-04-03 2003-02-11 General Electric Company Permanent magnet assembly and method of making thereof
US6662434B2 (en) 2001-04-03 2003-12-16 General Electric Company Method and apparatus for magnetizing a permanent magnet
US6873239B2 (en) * 2002-11-01 2005-03-29 Metglas Inc. Bulk laminated amorphous metal inductive device
US6737951B1 (en) * 2002-11-01 2004-05-18 Metglas, Inc. Bulk amorphous metal inductive device
ITSV20030011A1 (it) * 2003-03-31 2004-10-01 Esaote Spa Struttura magnetica per macchine di acquisiszione di
US7235910B2 (en) 2003-04-25 2007-06-26 Metglas, Inc. Selective etching process for cutting amorphous metal shapes and components made thereof
US20050062572A1 (en) * 2003-09-22 2005-03-24 General Electric Company Permanent magnet alloy for medical imaging system and method of making
US7423431B2 (en) * 2003-09-29 2008-09-09 General Electric Company Multiple ring polefaceless permanent magnet and method of making
US7148689B2 (en) 2003-09-29 2006-12-12 General Electric Company Permanent magnet assembly with movable permanent body for main magnetic field adjustable
US7218195B2 (en) * 2003-10-01 2007-05-15 General Electric Company Method and apparatus for magnetizing a permanent magnet
CN100399479C (zh) * 2004-04-05 2008-07-02 北京大学 适于便携式核磁共振装置使用的永磁体
WO2006038261A1 (ja) * 2004-09-30 2006-04-13 Neomax Co., Ltd. Ｍｒｉ用磁界発生装置
US7898257B2 (en) * 2006-08-02 2011-03-01 Aspect Magnet Technologies, Ltd. Open yoke magnet assembly
JP4810368B2 (ja) * 2006-09-11 2011-11-09 株式会社日立製作所 電子スピン共鳴ｃｔ装置
WO2011033496A1 (en) 2009-09-16 2011-03-24 Maradin Technologies Ltd. Micro coil apparatus and manufacturing methods therefor
EP2515105B1 (de) * 2011-04-21 2019-01-02 General Electric Company Gassensor zum Messen einer paramagnetischen Gaskomponente
CN104094368A (zh) 2012-01-30 2014-10-08 三菱电机株式会社 磁路
KR102035637B1 (ko) * 2018-04-26 2019-10-23 한국기초과학지원연구원 자석 모듈 및 이를 포함하는 자석 모듈 어셈블리
EP4067925A1 (de) 2021-03-29 2022-10-05 Siemens Healthcare GmbH Magnetresonanztomografievorrichtung mit einheit zur asymmetrischen felderzeugung

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB558709A (en) * 1941-10-24 1944-01-18 Philips Nv Improvements in and relating to magnet systems
FR985815A (fr) * 1949-05-09 1951-07-24 Delattre Et Frouard Reunis Ets Pièce polaire pour aimants et électro-aimants
NL84047C (de) * 1951-12-29
US2786971A (en) * 1954-06-11 1957-03-26 Philips Corp Magnetic system
DE1234874B (de) * 1955-07-22 1967-02-23 Perkin Elmer Corp Vorrichtung zur Erzeugung eines homogenen magnetischen Feldes
FR1270544A (fr) * 1960-06-17 1961-09-01 Csf Pièces polaires pour aimants permanents
GB1084542A (en) * 1963-04-01 1967-09-27 Perkin Elmer Ltd Magnets with high-homogeneity working gap
US3984706A (en) * 1971-12-27 1976-10-05 Fujitsu Ltd. Electromagnetic actuator for voice coil
GB2034122B (en) * 1978-10-02 1982-11-24 British Gas Corp Magnet assemblies for pipeline inspection vehicles
US4359706A (en) * 1979-12-18 1982-11-16 Arnold Flack Magnet pole pieces and pole piece extensions and shields
GB8305303D0 (en) * 1983-02-25 1983-03-30 Picker Int Ltd Magnets
DE3566185D1 (en) * 1984-04-11 1988-12-15 Sumitomo Spec Metals Magnetic field generating device for nmr-ct
GB8501442D0 (en) * 1985-01-21 1985-02-20 M & D Technology Ltd Electromagnet
JPS61203605A (ja) * 1985-03-07 1986-09-09 Fuji Electric Co Ltd 高均一磁場マグネツト
US4707663A (en) * 1985-08-15 1987-11-17 Fonar Corporation Nuclear magnetic resonance apparatus using low energy magnetic elements

Also Published As

Publication number Publication date
US4818966A (en) 1989-04-04
EP0284439A1 (de) 1988-09-28
JPS63241905A (ja) 1988-10-07
EP0284439B1 (de) 1993-02-03
DE3877995D1 (de) 1993-03-18

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Legal Events

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8364 No opposition during term of opposition