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Oriental Motor Co., Ltd. Patents
Assignee:
Oriental Motor Co., Ltd.
Address:
Tokyo, JP
No. of patents:
25
Patents:












Patent Number Title Of Patent Date Issued
8120303 Method and apparatus for controlling inertial system February 21, 2012
Suppression of vibration of a load machine without reducing the responsiveness of the load machine to an operation command is achieved by a method and an apparatus for controlling an inertial system intended to control an inertial system that has a motive power generator and a load m
7989994 Cylinder-type linear motor and moving part thereof August 2, 2011
The present invention provides a cylinder-type linear motor capable of shortening the total motor length with respect to a predetermined stroke length and capable of being operated as a brushless DC motor without a sensor means for sensing the position of a moving part being added in the
7786690 Motor control apparatus August 31, 2010
The present invention restrains high frequency leakage current while reducing ripples of current flowing through a motor having one set and another set of independent phase windings. A plurality of inverter type drive means drives the respective phase windings and a PWM control means
7633189 Cylinder-type linear motor and moving parts thereof December 15, 2009
The present invention provides a cylinder-type linear motor capable of shortening the total motor length with respect to a predetermined stroke length and capable of being operated as a brushless DC motor without a sensor means for sensing the position of a moving part being added in the
7626352 Control device for stepping motor December 1, 2009
A control device for a stepping motor is provided that can reduce torque generated by a motor and control the expansion of a speed deviation when the rotational speed of a rotor exceeds a speed command. The control device includes first judging means (27) for judging whether a positional
7626306 Laminated core structure of motor December 1, 2009
The laminated core structure of a motor includes a stator iron core formed by laminating a plurality of stator iron core thin sheets in which a plurality of magnetic poles are provided at fixed intervals along the circumferential direction on the inner peripheral side so as to project
7425785 Permanent magnet motor September 16, 2008
In a permanent magnet motor consisting of a rotor 1, which is supported on a rotating shaft 2 and has twelve permanent magnets 3 arranged at fixed intervals in the circumferential direction in the peripheral edge portion thereof, and a stator 4, which is disposed around the rotor 1 with
7378765 Cylinder-type linear motor and moving part thereof May 27, 2008
The present invention provides a cylinder-type linear motor. The motor includes a fixed part including a coil assembly having a plurality of ring-shaped coils arranged in the axial direction to form a cylindrical space, and a yoke member made of a magnetic material, which is provided
6659238 Electromagnetic brake December 9, 2003
The present invention relates to an electromagnetic brake. In an electromagnetic brake (11) comprising an electromagnetic brake body (13) having yoke members (15a and 15b) with a coil winding (14) and a brake movable member (16) formed of a magnetic material, which is disposed via an
6225715 Construction of a motor with a built-in sensor May 1, 2001
An object of the present invention is to provide a construction of a motor with a built-in sensor, in which the total length of the motor is not increased, and can be made approximately equal to the total length of the conventional motor which has no built-in sensor. To achieve this obje
6121744 Control apparatus for position control motor September 19, 2000
Disclosed is a control apparatus for a position control motor, which allows the rotor of the motor to follow up to a command position without step out, can ensure highly reliable positioning, and is stable with respect to a variation in load. This position control apparatus comprises a p
5693989 Linear pulse motor December 2, 1997
A linear pulse motor includes a stator core manufactured easily and windings for phases disposed in the circumferential direction of the stator core and the length thereof is not lengthened in the shaft direction even when a multi-phase linear pulse motor is configured. The linear pu
5629572 Linear pulse motor May 13, 1997
A linear pulse motor includes a stator core manufactured easily and windings for phases disposed in the circumferential direction of the stator core and the length thereof is not lengthened in the shaft direction even when a multi-phase linear pulse motor is configured. The linear pu
5627418 Combined linear-rotary stepping motor May 6, 1997
A combined linear-rotary stepping motor shares stator iron plates and mover iron cores for a linear motor portion and a rotary motor portion without lengthening the length in the shaft direction.The combined linear-rotary stepping motor includes a stator 1 having a stator iron core 10 pr
5603155 Method of manufacturing an iron core of a multi-phase linear motor February 18, 1997
An iron core of a multi-phase linear motor which is not restricted by the shape of the motor is manufactured. A stator 1 and a mover 2 are disposed opposite to each other and are separated by an air gap. In manufacturing of the iron core of the multi-phase linear motor having a multiplic
5602431 Linear motor February 11, 1997
A linear motor is operated as an m-phase linear pulse motor or a brushless DC linear motor capable of producing large driving force. The linear motor includes an even number N of salient poles 11, 12, . . . disposed at an equal pitch angle and includes a stator 1 having a plurality of pe
5598044 Linear motor January 28, 1997
A linear motor includes a stator 1 having an even number N of salient poles 11, 12, . . . disposed at an equal angle pitch and a mover 3 disposed movably in a shaft direction. The salient poles are constituted by pairs of salient poles adjacent to each other and including m sets of salie
5548169 Motor with built-in capacitor August 20, 1996
A motor with a built-in capacitor is proposed. The capacitor is formed into a ring so that a shaft of the motor penetrates a center portion of the capacitor and is disposed in the motor so that the shaft of the motor penetrates the center portion. The capacitor is mounted at the same tim
5528090 Linear pulse motor June 18, 1996
It is an object of the present invention to provide a linear pulse motor capable of being configured even if the number of salient poles of a stator is odd and having increased ampere-conductors of a winding and large driving force. The linear pulse motor includes a stator having a p
5438227 Linear pulse motor August 1, 1995
A linear pulse motor of the present invention comprises a stator core 10 having salient poles with teeth in the axial direction on the inner peripheral surface, stator windings W2 and W4 wound around each salient pole, and a mover which can move freely in the axial direction in the s
5418413 Linear pulse motor May 23, 1995
It is an object of the present invention to provide a linear pulse motor which can increase the number of ampere conductors and attain a multi-phase configuration with a uniform magnetic circuit without increasing the length in the axial direction. The linear pulse motor includes a s
4799002 Method of driving a five-phase stepping motor January 17, 1989
A five-phase stepping motor system includes phase windings connected in series with each other to form a ring and pairs of switching devices connected in series with each other, with each pair having an intermediate connection connected to a corresponding junction between the phase w
4663577 Driving circuit for multi-phase stepping motor May 5, 1987
A driving circuit for a multi-phase stepping motor including an odd number of phase windings which are sequentially connected in series to each other so that a starting end of one winding is connected to a terminating end of an adjacent winding to form an annular connection, comprises sw
4385247 Four-phase hybrid type stepping motor May 24, 1983
A four-phase hybrid type stepping motor is disclosed, which comprises a rotor and eight stator poles each formed on a plane facing to an outer side surface of the rotor with a plurality of stator teeth, wherein a pitch between a center of the stator teeth of the first one of the eight
4319398 Method of assembling rotor of stepping motor March 16, 1982
The rotor of a stepping motor is formed of a shaft, a cylindrical magnet, first core pieces having an inside diameter substantially equal to the diameter of a rotor shaft and having a number of teeth on the periphery and second core pieces having an inside diameter substantially equal to

 
 
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