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Class Information
Number: 310/156.43
Name: Electrical generator or motor structure > Dynamoelectric > Rotary > Permanent magnet machines > Permanent magnet rotor > Specific shape > Specific magnetization
Description: Subject matter wherein at least one permanent magnet has a specific magnetization pattern.










Sub-classes under this class:

Class Number Class Name Patents
310/156.44 Different pole width 22
310/156.46 Shaped to vary air 63
310/156.47 Skewed 93
310/156.45 Specific dimensions 148


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8695210 Method of manufacturing an Nd based sintered magnet Apr. 15, 2014
8664822 Bi-permanent magnets in synchronous machines Mar. 4, 2014
8664824 Apparatus for generating an electric current in a varying magnetic field Mar. 4, 2014
8638016 Electromagnetic structure having a core element that extends magnetic coupling around opposing surfaces of a circular magnetic structure Jan. 28, 2014
8638017 Rotor for permanent magnet rotating machine Jan. 28, 2014
8624457 Permanent magnet electric motor Jan. 7, 2014
8575878 Energy converter Nov. 5, 2013
8569921 Permanent-magnet type electric rotating machine Oct. 29, 2013
8547086 Coercivity performance determination device for coercivity distribution magnet Oct. 1, 2013
8513849 Electro-motive machine using halbach array electrons trapped in electromagnetic coils and using hybrid coils to harvest back electromotive force Aug. 20, 2013
8497613 Permanent magnet, manufacturing method thereof, and rotor and IPM motor Jul. 30, 2013
8493062 Method for determining coercivity of coercivity distribution magnet Jul. 23, 2013
8456043 Rotor of brushless direct current motor having sound absorbing resin portion Jun. 4, 2013
8446054 Periodic magnetic field generation device, and linear motor and rotary motor using the same May. 21, 2013
8432080 Rotating electrical machine Apr. 30, 2013
8421292 Permanent magnet motor having composite magnets and manufacturing method thereof Apr. 16, 2013
8421293 Method of rare earth-iron based annular magnet and motor fabricated thereby Apr. 16, 2013
8405342 Motor Mar. 26, 2013
8400038 Flux focusing arrangement for permanent magnets, methods of fabricating such arrangements, and machines including such arrangements Mar. 19, 2013
8373848 Lithographic apparatus and lorentz actuator Feb. 12, 2013
8354766 Permanent magnet motor and washing machine provided therewith Jan. 15, 2013
8304949 Axial gap motor Nov. 6, 2012
8299672 Flux-focused shaped permanent magnet, magnetic unit having the magnets, device having the magnetic units and method for asymmetrically focusing flux fields of permanent magnets Oct. 30, 2012
8294316 Electrical power generation apparatus for contra-rotating open-rotor aircraft propulsion system Oct. 23, 2012
8288908 Reconfigurable inductive to synchronous motor Oct. 16, 2012
8278794 Axial gap type motor and method of manufacturing rotor of motor Oct. 2, 2012
8269390 Permanent-magnet-type rotating electrical machine and permanent magnet motor drive system Sep. 18, 2012
8258782 Angle detecting apparatus and angle detecting method Sep. 4, 2012
8227951 Permanent-magnet synchronous machine having skewed magnets for reduced torque ripple Jul. 24, 2012
8222787 Electric machine Jul. 17, 2012
8198774 Permanent magnet motor Jun. 12, 2012
8183731 Electro-motive machine using Halbach array and electrons trapped in electromagnetic providing current May. 22, 2012
8183732 Radial anisotropic magnet manufacturing method, permanent magnet motor using radial anisotropic magnet, and iron core-equipped permanent magnet motor May. 22, 2012
8179009 Rotor for an electric machine May. 15, 2012
8148865 Permanent magnet rotating electrical machine and permanent magnet rotating electrical machine system Apr. 3, 2012
8102090 Brushless electric machine Jan. 24, 2012
8097993 Electric motor and/or generator with mechanically tuneable permanent magnetic field Jan. 17, 2012
8084910 Rotor structure for a permanent-magnet machine Dec. 27, 2011
8080915 Embedded magnet motor and manufacturing method of the same Dec. 20, 2011
8069552 Method of manufacturing rotor magnet for micro rotary electric machine Dec. 6, 2011
8072109 Radial anisotropic magnet manufacturing method, permanent magnet motor using radial anisotropic magnet, and iron core-equipped permanent magnet motor Dec. 6, 2011
8047816 Centrifugal pump Nov. 1, 2011
8044547 Radial-direction gap type magnet motor Oct. 25, 2011
8044548 Permanent-magnet-type rotating electrical machine Oct. 25, 2011
8039998 Rotor for motor and method for producing the same Oct. 18, 2011
8040008 Axial gap motor Oct. 18, 2011
8035266 Axial gap motor Oct. 11, 2011
8035260 Stepping motor with a coded pole pattern Oct. 11, 2011
8030817 Rotor of permanent-magnet-type rotating electrical machine Oct. 4, 2011
8009001 Hyper halbach permanent magnet arrays Aug. 30, 2011

1 2 3 4










 
 
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