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Class Information
Number: 310/156.45
Name: Electrical generator or motor structure > Dynamoelectric > Rotary > Permanent magnet machines > Permanent magnet rotor > Specific shape > Specific magnetization > Specific dimensions
Description: Subject matter wherein at least one permanent magnet has specific dimensions such as arc length, thickness, width or axial length which effects the pattern of the magnetic flux emanating from at least one permanent magnet.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7626300 |
Radial anisotropic cylindrical sintered magnet and permanent magnet motor |
Dec. 1, 2009 |
| 7608972 |
Claw-pole motor having smaller intervals between induction poles of stator rings at both ends |
Oct. 27, 2009 |
| 7569961 |
Rotor for motors |
Aug. 4, 2009 |
| 7541710 |
Rotating electric machine |
Jun. 2, 2009 |
| 7538469 |
Synchronous machine design and manufacturing |
May. 26, 2009 |
| 7531933 |
Permanent magnet rotating machine |
May. 12, 2009 |
| 7518277 |
Electric motor |
Apr. 14, 2009 |
| 7508193 |
Encoder |
Mar. 24, 2009 |
| 7482724 |
Ipm electric rotating machine |
Jan. 27, 2009 |
| 7453181 |
Permanent magnet synchronous motor and compressor using the same |
Nov. 18, 2008 |
| 7425785 |
Permanent magnet motor |
Sep. 16, 2008 |
| 7417346 |
Permanent magnet rotating electric machine |
Aug. 26, 2008 |
| 7411329 |
Permanent magnet synchronous motor including permanent magnet with tapered outer edges and rotor core with opening |
Aug. 12, 2008 |
| 7408279 |
Permanent magnet synchronous motor including permanent magnet with tapered outer edges |
Aug. 5, 2008 |
| 7388309 |
Magnetic circuit structure for rotary electric machine |
Jun. 17, 2008 |
| 7385328 |
Cogging reduction in permanent magnet machines |
Jun. 10, 2008 |
| 7362025 |
Internal permanent magnet rotor having improved configuration of magnetic flux barriers |
Apr. 22, 2008 |
| 7233089 |
Permanent magnet rotating electric machine |
Jun. 19, 2007 |
| 7148597 |
Permanent magnet rotating electric machine |
Dec. 12, 2006 |
| 7109623 |
Motor and electrically-driven fan employing the same |
Sep. 19, 2006 |
| 7109624 |
Synchronous electric machine |
Sep. 19, 2006 |
| 7105970 |
Cored motor |
Sep. 12, 2006 |
| 7105971 |
Permanent-magnet rotor for an inner rotor type electric rotary machine and magnet-saving type rotor for a synchronous motor |
Sep. 12, 2006 |
| 7064468 |
Brush-less motor using vernier structure |
Jun. 20, 2006 |
| 7045923 |
Magnetizing method and permanent magnet magnetized thereby |
May. 16, 2006 |
| 7015614 |
Synchronous reluctance motor |
Mar. 21, 2006 |
| 7009319 |
Controlling electric motor cogging |
Mar. 7, 2006 |
| 6987341 |
Motor of rotor with built-in permanent magnet |
Jan. 17, 2006 |
| 6943474 |
Brushless DC motor and method of manufacturing brushless DC motor |
Sep. 13, 2005 |
| 6943475 |
Permanent magnet motor for driving a fan |
Sep. 13, 2005 |
| 6920682 |
Mover assembly of reciprocating motor |
Jul. 26, 2005 |
| 6897588 |
Brushless motor |
May. 24, 2005 |
| 6891299 |
Rotary electric machine having a flux-concentrating rotor and a stator with windings on teeth |
May. 10, 2005 |
| 6873068 |
Stepping motor |
Mar. 29, 2005 |
| 6867524 |
Rotor skew methods for permanent magnet motors |
Mar. 15, 2005 |
| 6848164 |
Magnet fixing method of a linear servo motor |
Feb. 1, 2005 |
| 6817507 |
Capstan motor for magnetic recording and reproducing apparatus |
Nov. 16, 2004 |
| 6815858 |
Permanent magnet rotating electric machine |
Nov. 9, 2004 |
| 6812614 |
Rotor for a synchronous motor defined by a hyperbolic function |
Nov. 2, 2004 |
| 6809438 |
Permanent magnet stepping motor having pole teeth misaligned by an electrical angle |
Oct. 26, 2004 |
| 6774520 |
Thin inner rotor motor and disk device using the motor |
Aug. 10, 2004 |
| 6717315 |
Permanent magnet type motor and method of producing permanent magnet type motor |
Apr. 6, 2004 |
| 6707209 |
Reduced cogging torque permanent magnet electric machine with rotor having offset sections |
Mar. 16, 2004 |
| 6707178 |
Permanent magnet type twelve-pole stepping motor |
Mar. 16, 2004 |
| 6703745 |
Rotor structure for a motor having built-in type permanent magnet |
Mar. 9, 2004 |
| 6703744 |
Generator-motor for vehicle |
Mar. 9, 2004 |
| 6664690 |
Permanent magnet excited rotor for a permanent magnet excited electric drive, particularly for AC main drives |
Dec. 16, 2003 |
| 6657349 |
AC servomotor |
Dec. 2, 2003 |
| 6628031 |
Harmonic-frequency synchronous machine with flux concentration |
Sep. 30, 2003 |
| 6580190 |
Circumferential confronting type motor |
Jun. 17, 2003 |
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