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Class Information
Number: 335/304
Name: Electricity: magnetically operated switches, magnets, and electromagnets > Magnets and electromagnets > Magnet structure or material > Permanent magnets > With flux leakage-reducing means
Description: Subject matter wherein permanent magnets are mounted or arranged to prevent or substantially reduce stray leakage flux across the airgap.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7365623 |
Permanent magnet, magnetic device for use in MRI including the same, and manufacturing processes thereof |
Apr. 29, 2008 |
| 7248047 |
Shielding for mobile MR systems |
Jul. 24, 2007 |
| 7161453 |
Rotating and pivoting magnet for magnetic navigation |
Jan. 9, 2007 |
| 7084632 |
Permanent magnet for magnet resonance |
Aug. 1, 2006 |
| 6963181 |
Cathode-ray tube, cathode-ray tube apparatus, image display apparatus, and coil unit |
Nov. 8, 2005 |
| 6946939 |
Packaging plate for magnetic circuit, method for packaging magnetic circuit using the same, and magnetic circuit package |
Sep. 20, 2005 |
| 6897751 |
Pole-piece unit, method for assembling the same, and magnetic field generator |
May. 24, 2005 |
| 6856224 |
End caps on hollow magnets |
Feb. 15, 2005 |
| 6781495 |
Magnetic field generator and assembling method thereof |
Aug. 24, 2004 |
| 6763789 |
Electromagnetic actuator with permanent magnet |
Jul. 20, 2004 |
| 6707362 |
Method and apparatus for focusing a magnetic field to treat liquids |
Mar. 16, 2004 |
| 6653920 |
Magnetic device having increased magnetic field intensity and unidirectional magnetic line of force |
Nov. 25, 2003 |
| 6630879 |
Efficient magnet system for magnetically-assisted surgery |
Oct. 7, 2003 |
| 6596163 |
Device for treatment of carbon based fuel |
Jul. 22, 2003 |
| 6576128 |
Magnet assembly for removing ferrous metal particles from fluids |
Jun. 10, 2003 |
| 6572778 |
Method for separating magnetized substances from a solution |
Jun. 3, 2003 |
| 6261450 |
Magnetic source device |
Jul. 17, 2001 |
| 6084491 |
Permanent magnetic reluctor structures and methods |
Jul. 4, 2000 |
| 6057656 |
Magnet block assembly for insertion device |
May. 2, 2000 |
| 5976369 |
Magnetic separation apparatus |
Nov. 2, 1999 |
| 5798680 |
Strapped open magnetic structure |
Aug. 25, 1998 |
| 5783981 |
Magnetic reinitialization of thin film magnetoresistive reproducing heads at the suspension level of media drive manufacturing |
Jul. 21, 1998 |
| 5716520 |
Magnetic fluid conditioner |
Feb. 10, 1998 |
| 5596304 |
Permanent magnet edge-field quadrupole |
Jan. 21, 1997 |
| 5557205 |
Magnetic field generating apparatus for use in MRI |
Sep. 17, 1996 |
| 5515020 |
Premagnetizing head |
May. 7, 1996 |
| 5506558 |
Unipolar composite magnets |
Apr. 9, 1996 |
| 5502425 |
Magnetic energy reinforcing device |
Mar. 26, 1996 |
| 5488342 |
Magnet assembly for NMR |
Jan. 30, 1996 |
| 5475355 |
Method and apparatus for compensation of field distortion in a magnetic structure using spatial filter |
Dec. 12, 1995 |
| 5468381 |
Magnetic filter adapter |
Nov. 21, 1995 |
| 5458785 |
Magnetic separation method |
Oct. 17, 1995 |
| 5382875 |
Stray magnetic field suppresser for CRT image displays |
Jan. 17, 1995 |
| 5380430 |
Magnetizing apparatus for treatment of fluids |
Jan. 10, 1995 |
| 5366623 |
Apparatus for magnetically treating a fluid |
Nov. 22, 1994 |
| 5356534 |
Magnetic-field amplifier |
Oct. 18, 1994 |
| 5314625 |
External oil pan magnet |
May. 24, 1994 |
| 5278534 |
Magnetic structure having a mirror |
Jan. 11, 1994 |
| 5276419 |
Air-code magnetic flux guide |
Jan. 4, 1994 |
| 5269916 |
Pipe protector/fluid ionizer employing magnetic condenser for producing concentrated force lines perpendicular to fluid flow |
Dec. 14, 1993 |
| 5269915 |
Magnetic source and condenser for producing flux perpendicular to gas and liquid flow in ferrous and nonferrous pipes |
Dec. 14, 1993 |
| 5191308 |
Magnetostrictive wave device having a higher maximum cut-off band elimination filter |
Mar. 2, 1993 |
| 5162771 |
Highly efficient yoked permanent magnet |
Nov. 10, 1992 |
| 5128643 |
Method and apparatus for producing a region of low magnetic field |
Jul. 7, 1992 |
| 5126713 |
Hemispherical cladding for permanent magnet solenoids |
Jun. 30, 1992 |
| 5119057 |
Optimum design of two-dimensional permanent magnets |
Jun. 2, 1992 |
| 5109172 |
Permanent magnet motor having diverting magnets |
Apr. 28, 1992 |
| 5107239 |
Hybrid permanent magnets |
Apr. 21, 1992 |
| 5107238 |
Magnetic cladding for use in periodic permanent magnet stacks |
Apr. 21, 1992 |
| 5099217 |
Constant gap cladded twister |
Mar. 24, 1992 |
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