Class 310/154.05 - Axial

Subclass of Class 310 - Electrical generator or motor structure
Definition: Subject matter wherein at least one permanent magnet is
No. of patents: 36
Last issue date: 05/06/2008

Number	Title	Issue Date
7368844	Magnetoelectric generator A stator core includes: a laminated body in which a plurality of intermediate plates that have dowels are laminated so as to be integrated by dowel crimping between layers; and a pair of end plates that are disposed so as to be positioned on opposite sides of two en...	05/06/2008
7323801	Axial air-gap electronic motor There is provided an axial air-gap electronic motor in which work for assembling a stator can be performed efficiently. A locking protrusion 26 is provided on a flange portion 24 of core members 21a to 21i which are divided ...	01/29/2008
7254881	Method for manufacturing an armature of a rotation apparatus A motor includes a stator having magnets, a rotor having teeth, a commutator secured to the rotor, and brushes. A coil is wound about each tooth. The commutator is connected to the coils. The brushes slidably contact the commutator. The number of the magnets and the...	08/14/2007
7173357	Axial gap type dynamo-electric machine There is provided an axial gap type rotating electric machine which is small-sized and achieves a high motor efficiency as a drive source having a high torque using, for example, a strong magnet by reducing an energy loss by an induced current. An axial gap t...	02/06/2007
7141902	Flat type vibration motor Disclosed is a flat type vibration motor, in which a shaft is supported between a housing and a bracket. A rotor includes an upper board, A and B phase winding coils, an eccentric weight and a rectifier. The rectifier has a plurality of segments electrically connect...	11/28/2006
6940206	Coreless motor To realize a small-sized coreless motor featuring excellence in responsiveness and controllability, capability of obtaining greater rotating torque compared with driving power supplied to the coil, great intensity, ease in assembly and high energy efficiency, a core...	09/06/2005
6831387	Rotating electrical machine with permanent magnets and method of making same An improved rotating electrical machine having permanent magnets and method for attaching the magnets that permits the use of thin, high flux density materials. The magnets and their mounting plate have facing cylindrical surfaces that are spaced slightly apart and ...	12/14/2004
6710483	Actuator capable of revolving A revolution type actuator having a movable member performing a revolution motion includes a movable member capable of revolving with respect to a fixed member, a plurality of conducting paths which are provided on a face parallel to a trajectory face of the above-m...	03/23/2004
6439855	Direct current electric motor which eliminates outer case and places brushes and chokes in space efficient locations A motor and fan structure 10 includes direct current motor assembly 18 having a stator assembly 20 including a flux plate 22 and permanent magnet structure 24 mounted on the flux plate 22. The flux plate 22 defines one end of the motor assembly and define...	08/27/2002
5646467	Axial airgap DC motor An axial air gap motor comprising a housing having a first endplate and an opposed second endplate, a stator assembly mounted within the housing, and a rotor assembly rotatable mounted within the housing. The rotor assembly includes an annular disc shaped...	07/08/1997
5615618	Orbital and modular motors using permanent magnets and interleaved iron or steel magnetically permeable members A rotating device such as an orbital motor has a stator which includes a pair of opposed, generally annular magnetic units each comprising a plurality of groups of permanent magnets such as ceramic or ferrous magnets arranged in a side-by-side relationshi...	04/01/1997
5481146	Passive null flux coil magnetic bearing system for translation or rotation An apparatus, and methods of making and using the apparatus, including at least a first path of magnetic flux perpendicular to and penetrating a first plane in space; preferably, a second path of magnetic flux perpendicular to the first plane and having a...	01/02/1996
5304886	Printed circuit motor A stepping motor having a printed circuit rotor including a first printed circuit on one side of the rotor formed in a plurality of spiral coil windings, and a second printed circuit on the other side of the rotor formed in an equal number of like coil wi...	04/19/1994
5099162	Coil of superconducting material for electric appliance and motor utilizing said coil Coils for electric appliances such as motor or generator are made with a superconducting material, and the width of the coil and the gap between the coils are so adjusted that the passage of magnetic flux generated by a magnetic flux generating member in ...	03/24/1992
4982130	Electric motor with a stator and a rotor made from laminated layers of plates An electric motor includes a stator and a rotor and a bearing that connects both in a rotatable manner. The rotor and stator include electric conductor paths leading to exciting coils and/or to electronic components, all arranged on an iron-plate serving ...	01/01/1991
4829208	Flat motor having a rotatable shaft, a stepped portion formed in said shaft, and apparatus for producing same A flat motor device in which resin is molded around a knurling portion to thereby form a rotor hub, the rotor hub being projected outwardly of a casing, a shaft projected from the rotor hub is formed with a small diameter threaded portion so as to create ...	05/09/1989
4684839	Structure of electric motor and production method thereof The invention relates to an electric motor having armature means including a plurality of armature segments each rendered into a flat form and arranged in a same plane around a center rotation axis in a manner as to form a circular outline; magnet means i...	08/04/1987
4590635	Machine for floor maintenance A machine for floor maintenance comprising an electric motor in which armature coils are included in a stator and permanent magnets are included in a rotor. The armature coils are disposed substantially radial to the axis of the stator with the axial exte...	05/27/1986
4583016	Direct current motor A direct current motor comprising a field magnet with 2np magnetic poles, magnetized to N and S poles with equal angular intervals, where n is an integer of 1 or more and p is an integer of 2 or more; a magnetic member for closing the magnetic circuit of ...	04/15/1986
4553058	Low profile direct current motor A low profile electric motor has a disk-shape armature with front and rear faces. Each face has a plurality of armature windings, the turns of each winding extending across each face from one point on the periphery of the armature inwardly across the face...	11/12/1985
4494026	Brush-mounting structure of miniature motor A brush mounting structure of a miniature motor wherein brushes of the motor are fastened to bent end pieces of terminal plates, the terminal plates are fixed to a metallic bracket through a plastic film by means of insulating rivets, and the bracket is a...	01/15/1985
4490635	Pure torque, limited displacement transducer A bidirectional, pure torque generating electromechanical rotor mounted to a frame includes flux return top and base plates, a generally annular permanent magnet secured to one of the plates and a generally annular rotatable coil assembly placed between t...	12/25/1984
4476409	Coils of coreless motor and method of manufacturing the same A coil for use in a coreless motor comprises a flat disc shaped portion in which a coil wire extends between two peripheral points which are spaced 180°, coil turns of the coil being successively displaced in a peripheral direction, and a cylindrical por...	10/09/1984
4447751	Direct current motor A direct current motor comprises a field magnet having 2 mn magnetic poles magnetized with the same angular intervals as those of the magnetic poles N and S, where m is an integer of 1 or more, and n is an integer of 4 or more, a magnetic member for closi...	05/08/1984
4437029	Direct current motor A direct current motor comprising a field magnet provided with 2 mn magnetic poles which are magnetized with the same angular intervals as those of the magnetic poles N and S, where m is an integer of 1 or more, and n is an integer of 3 or more; a magneti...	03/13/1984
4369388	Direct current motor with non-superposed armature windings A direct current motor is provided with a field magnet having 4 mn alternating N and S poles (m being a positive integer of one or more and n being a positive integer of two or more) that are magnetized within segments of equi-angular width about the fiel...	01/18/1983
4315177	Direct current motor with non-superposed armature windings A direct current motor is provided with a field magnet having l(2m+2n) alternating N and S poles (l and m being positive integers of one or more and n being a positive integer of two or more) that are magnetized within segments of equiangular width about ...	02/09/1982
4315178	Direct current motor with non-superposed armature windings A direct current motor is provided with a field magnet having l(2m+2n) alternating N and S poles (l and m being positive integers of one or more and n being a positive integer of two or more) that are magnetized within segments of equiangular width about ...	02/09/1982
4303844	Small D.C. motor A D.C. motor is disclosed having a magnetic plate disposed on the upper surface of the rotor for normally urging a rotor of the motor downwards. The spacing between the magnetic plate and a cover plate of the motor is made larger than the spacing of the r...	12/01/1981
4243902	Direct current motor with non-superposed armature windings A direct current motor is provided with a field magnet having 4 mn alternating N and S poles (m being a positive integer of one or more and n being a positive integer of two or more) that are magnetized within segments of equi-angular width about the fiel...	01/06/1981
4208784	Method for placing and securing magnets in a motor housing An improved technique for the assembly of motors of the type having a printed armature that rotates in a flat, annular air gap between a magnet assembly and a magnetic flux plate, wherein the size of the air gap is accurately maintained at preselected val...	06/24/1980
4143288	Coreless motor A coreless motor comprises a motor housing having a bearing, a rotor mounted within the housing, rotatably supported within the bearing and having a plurality of coils constituting a pancake coil, a permanent magnet stator mounted within the housing and d...	03/06/1979
4093882	Coreless motor Disclosed is a coreless motor comprising a rotor having a plurality of flat-type loop coils arranged on a rotor substrate, a motor housing having a journal bearing for rotatably supporting said rotor, and a stator which includes a pair of permanent magnet...	06/06/1978
4080544	Electric motor A flattened DC motor, in which a rotary armature having a coil assembly comprising a combination of at least two disc-shaped coils, each having radial segments, is disposed in the field of a fixed field permanent magnet. The brushes are in contact with an...	03/21/1978
3993920	Coreless motor A coreless motor comprises a motor housing having a bearing, a rotor mounted within the housing, rotatably supported within the bearing and having a plurality of coils constituting a pancake coil, a permanent magnet stator mounted within the housing and d...	11/23/1976
3984709	Miniature electric motor A miniature electric motor with a rotor having pole teeth simultaneously magnetizable in opposite polarities upon energization of an exciting coil, being provided with high magnetic reluctance grooves for magnetically separating each pole tooth from the a...	10/05/1976

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Class 310/154.05 - Axial