JP2000157510A5 - - Google Patents
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- Publication number
- JP2000157510A5 JP2000157510A5 JP1999330787A JP33078799A JP2000157510A5 JP 2000157510 A5 JP2000157510 A5 JP 2000157510A5 JP 1999330787 A JP1999330787 A JP 1999330787A JP 33078799 A JP33078799 A JP 33078799A JP 2000157510 A5 JP2000157510 A5 JP 2000157510A5
- Authority
- JP
- Japan
- Prior art keywords
- magnetic pole
- pole piece
- tile
- concentric annular
- 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.)
- Granted
Links
- 238000003491 array Methods 0.000 description 7
- 238000002595 magnetic resonance imaging Methods 0.000 description 7
- 239000010410 layer Substances 0.000 description 3
- 239000011800 void material Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/198507 | 1998-11-24 | ||
| US09/198,507 US6259252B1 (en) | 1998-11-24 | 1998-11-24 | Laminate tile pole piece for an MRI, a method manufacturing the pole piece and a mold bonding pole piece tiles |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000157510A JP2000157510A (ja) | 2000-06-13 |
| JP2000157510A5 true JP2000157510A5 (https=) | 2009-02-26 |
| JP4445078B2 JP4445078B2 (ja) | 2010-04-07 |
Family
ID=22733655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33078799A Expired - Fee Related JP4445078B2 (ja) | 1998-11-24 | 1999-11-22 | 磁気共鳴イメージング装置用の磁極片、並びに磁極片を製造するための方法及びモールド |
Country Status (4)
| Country | Link |
|---|---|
| US (3) | US6259252B1 (https=) |
| EP (1) | EP1004889B1 (https=) |
| JP (1) | JP4445078B2 (https=) |
| DE (1) | DE69930356T2 (https=) |
Families Citing this family (46)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| GB2355800B (en) * | 1999-10-29 | 2004-10-27 | Oxford Magnet Tech | Improved magnet |
| AU2001228228A1 (en) * | 2000-01-19 | 2001-07-31 | Millennium Technology Inc. | C-shaped magnetic resonance imaging system |
| JP3705995B2 (ja) * | 2000-04-19 | 2005-10-12 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 勾配コイル製造方法および勾配コイル並びに磁気共鳴撮影装置 |
| US6552639B2 (en) | 2000-04-28 | 2003-04-22 | Honeywell International Inc. | Bulk stamped amorphous metal magnetic component |
| US6825758B1 (en) | 2000-06-26 | 2004-11-30 | Nokian Tyres Plc | System for detecting and communicating operational characteristics of tires telecommunicationally and a method therefor |
| US6822449B1 (en) | 2000-11-22 | 2004-11-23 | Fonar Corporation | Ferromagnetic frame with laminated carbon steel |
| US7271689B1 (en) | 2000-11-22 | 2007-09-18 | Fonar Corporation | Magnet structure |
| US6970061B1 (en) * | 2000-11-22 | 2005-11-29 | Fonar Corporation | Magnet structure |
| US6982620B1 (en) * | 2000-11-22 | 2006-01-03 | Fonar Corporation | Magnet structure |
| US7463129B1 (en) | 2000-11-22 | 2008-12-09 | Fonar Corporation | Magnet structure |
| US7248137B1 (en) | 2000-11-22 | 2007-07-24 | Fonar Corporation | Magnet structure |
| JP3535107B2 (ja) * | 2001-03-02 | 2004-06-07 | 株式会社日立製作所 | 磁極及びそれを用いた磁石装置 |
| US6662434B2 (en) | 2001-04-03 | 2003-12-16 | General Electric Company | Method and apparatus for magnetizing a permanent magnet |
| US6518867B2 (en) * | 2001-04-03 | 2003-02-11 | General Electric Company | Permanent magnet assembly and method of making thereof |
| US7084632B2 (en) * | 2002-04-01 | 2006-08-01 | Shenyang Neusoft Bopu Nmr Tech Co., Ltd. | Permanent magnet for magnet resonance |
| US6984982B2 (en) * | 2002-07-29 | 2006-01-10 | Ge Medical Systems Global Technology Company Llc | Method and system for shimming an MRI magnet assembly |
| 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 |
| US7242191B2 (en) * | 2002-11-25 | 2007-07-10 | General Electric Company | Cold mass support structure and helium vessel of actively shielded high field open MRI magnets |
| US6825666B2 (en) * | 2002-12-23 | 2004-11-30 | General Electric Company | Pole face for permanent magnet MRI with laminated structure |
| US6859123B2 (en) * | 2003-04-03 | 2005-02-22 | Ge Medical Systems Global Technology Company, Llc | Methods and apparatus for positioning permanent magnetic blocks |
| US7235910B2 (en) | 2003-04-25 | 2007-06-26 | Metglas, Inc. | Selective etching process for cutting amorphous metal shapes and components made thereof |
| CN100504432C (zh) * | 2003-05-23 | 2009-06-24 | 西门子(中国)有限公司 | 磁共振设备中的静磁场调节方法及其静磁场发生装置 |
| CN100434928C (zh) * | 2003-05-23 | 2008-11-19 | 西门子(中国)有限公司 | 一种可用于磁共振设备的磁场发生系统 |
| 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 |
| US6937018B2 (en) * | 2003-10-31 | 2005-08-30 | General Electric Company | Systems and methods for fabricating pole pieces for magnetic resonance imaging systems |
| US6956375B2 (en) * | 2004-01-09 | 2005-10-18 | General Electric Company | Magnetic resonance imaging magnetic field generator |
| US7631411B2 (en) * | 2004-06-28 | 2009-12-15 | General Electric Company | Method of manufacturing support structure for open MRI |
| US7319326B2 (en) * | 2004-09-23 | 2008-01-15 | University Of New Brunswick | Sensor and magnetic field apparatus suitable for use in for unilateral nuclear magnetic resonance and method for making same |
| JP2006149722A (ja) * | 2004-11-30 | 2006-06-15 | Ge Medical Systems Global Technology Co Llc | マグネットシステムおよびmri装置 |
| US8237440B2 (en) * | 2005-09-23 | 2012-08-07 | University Of New Brunswick | Magnetic field generator suitable for unilateral nuclear magnetic resonance and method for making same |
| US7400147B2 (en) * | 2005-11-03 | 2008-07-15 | Uri Rapoport | Self-fastening cage surrounding a magnetic resonance device and methods thereof |
| CA2672699A1 (en) * | 2006-11-24 | 2008-05-29 | University Of New Brunswick | Magnet array |
| JP4668238B2 (ja) * | 2007-05-08 | 2011-04-13 | 住友重機械工業株式会社 | 蓄冷式冷凍機およびパルスチューブ冷凍機 |
| CN102316798A (zh) * | 2008-12-18 | 2012-01-11 | 古鲁姆·泰克勒马林 | 用于磁共振成像的小型非均匀永磁场发生器 |
| JP5349177B2 (ja) * | 2009-07-09 | 2013-11-20 | 株式会社東芝 | 磁気共鳴イメージング装置 |
| KR20170048560A (ko) | 2014-09-05 | 2017-05-08 | 하이퍼파인 리서치, 인크. | 낮은 필드 자기 공명 이미징 방법들 및 장치 |
| US10627464B2 (en) | 2016-11-22 | 2020-04-21 | Hyperfine Research, Inc. | Low-field magnetic resonance imaging methods and apparatus |
| US10539637B2 (en) | 2016-11-22 | 2020-01-21 | Hyperfine Research, Inc. | Portable magnetic resonance imaging methods and apparatus |
| US10955504B2 (en) | 2016-11-22 | 2021-03-23 | Hyperfine Research, Inc. | Systems and methods for automated detection in magnetic resonance images |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1004888A (en) * | 1964-01-24 | 1965-09-15 | Shibata Fukuo | Electric motor controlling system |
| US3940528A (en) | 1965-05-14 | 1976-02-24 | Roberts Arthur H | Rigid plastics tile with textured surface |
| JPS55106058A (en) * | 1979-02-06 | 1980-08-14 | Toshiba Corp | Production of stator core |
| JPS55121622A (en) * | 1979-03-14 | 1980-09-18 | Toshiba Corp | Manufacture of c-cut core of wound-core |
| US4496395A (en) | 1981-06-16 | 1985-01-29 | General Motors Corporation | High coercivity rare earth-iron magnets |
| US4540453A (en) | 1982-10-28 | 1985-09-10 | At&T Technologies | Magnetically soft ferritic Fe-Cr-Ni alloys |
| US4707313A (en) * | 1986-07-02 | 1987-11-17 | A. O. Smith Corporation | Method of making a laminated structure for use in an electrical apparatus |
| JPS63241905A (ja) | 1987-03-27 | 1988-10-07 | Sumitomo Special Metals Co Ltd | 磁界発生装置 |
| JPH02184002A (ja) * | 1989-01-10 | 1990-07-18 | Sumitomo Special Metals Co Ltd | Mri用磁界発生装置 |
| JPH02246927A (ja) * | 1989-03-20 | 1990-10-02 | Hitachi Medical Corp | 磁気共鳴イメージング装置の磁界発生装置 |
| US5252924A (en) | 1991-11-18 | 1993-10-12 | Sumitomo Special Metals Co., Ltd. | Magnetic field generating apparatus for MRI |
| JP2808198B2 (ja) | 1990-07-02 | 1998-10-08 | 住友特殊金属株式会社 | Mri用磁界発生装置とその製法 |
| DE69129687T2 (de) | 1990-09-29 | 1999-03-11 | Sumitomo Special Metals Co., Ltd., Osaka | Vorrichtung zur Erzeugung eines Magnetfeldes für die Bildgebung mittels magnetischer Resonanz |
| JPH04307705A (ja) * | 1991-04-04 | 1992-10-29 | Seiko Epson Corp | 磁界発生装置 |
| JP2694092B2 (ja) * | 1991-10-21 | 1997-12-24 | キヤノン株式会社 | マグネットローラ、該マグネットローラの製造方法、該マグネットローラの製造装置、現像ユニットおよび該現像ユニットを備えた複写装置 |
| DE69318998T2 (de) | 1992-02-15 | 1998-10-15 | Santoku Metal Ind | Legierungsblock für einen Dauermagnet, anisotropes Pulver für einen Dauermagnet, Verfahren zur Herstellung eines solchen und Dauermagneten |
| FI105293B (fi) * | 1993-06-08 | 2000-07-14 | Picker Nordstar Oy | Magneettikuvaukseen käytettävän magneetin napakenkä |
| DE69419096T2 (de) | 1993-09-29 | 1999-10-28 | Oxford Magnet Technology Ltd., Eynsham | Verbesserungen an Magneten der Bilderzeugung mittels magnetischer Resonanz |
| US5475355A (en) * | 1994-04-15 | 1995-12-12 | New York University | Method and apparatus for compensation of field distortion in a magnetic structure using spatial filter |
| JPH0831635A (ja) | 1994-07-08 | 1996-02-02 | Sumitomo Special Metals Co Ltd | Mri用磁界発生装置 |
| 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 |
-
1998
- 1998-11-24 US US09/198,507 patent/US6259252B1/en not_active Expired - Fee Related
-
1999
- 1999-11-22 JP JP33078799A patent/JP4445078B2/ja not_active Expired - Fee Related
- 1999-11-24 EP EP99309392A patent/EP1004889B1/en not_active Expired - Lifetime
- 1999-11-24 DE DE69930356T patent/DE69930356T2/de not_active Expired - Lifetime
-
2000
- 2000-12-18 US US09/738,838 patent/US6429761B2/en not_active Expired - Lifetime
- 2000-12-18 US US09/738,856 patent/US6694602B2/en not_active Expired - Fee Related
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