EP1490953A1 - Rotary electric motor having concentric annular members - Google Patents
Rotary electric motor having concentric annular membersInfo
- Publication number
- EP1490953A1 EP1490953A1 EP02807181A EP02807181A EP1490953A1 EP 1490953 A1 EP1490953 A1 EP 1490953A1 EP 02807181 A EP02807181 A EP 02807181A EP 02807181 A EP02807181 A EP 02807181A EP 1490953 A1 EP1490953 A1 EP 1490953A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stator
- rotor
- electric motor
- rotary electric
- poles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/26—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating armatures and stationary magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Definitions
- the present invention relates to rotary direct current electric motors, more particularly to motors having first and second annular ring members concentrically arranged about an axis of rotation and separated from each other by an axial air gap, one of the members comprising separate magnetically isolated wound electromagnetic pole groups.
- Direct current motors have versatility in a wide range of applications.
- the availability of a battery power source for dc motor equipped devices facilitates a portability aspect that is not readily available for a-c motor drives.
- Electronic controls such as microprocessor based systems, for a wide variety of functional applications have become commonplace.
- U.S. patent 5,164,623 to Shkondin is one example of a proposed implementation in which a motor is mounted on the wheel of a vehicle for directly driving the vehicle. The patent proposes that such an arrangement can be applicable to electric cars, bicycles, wheelchairs and the like.
- the electromagnetic circuit is broken at transition points between adjacent groups of electromagnets. Sensors detect relative rotational position between rotor and stator elements to control electronic switching of the individual electromagnet windings. Electromagnets belonging to a common group are switched simultaneously with one common electronic switching means per group. Windings of the electromagnets in adjacent groups are of different phases and are switched at different times.
- stator winding switched energization Of concern in implementation of stator winding switched energization is the avoidance of unfavorable consequences such as rotation irregularities. For example, simultaneous switching of all motor phase windings can cause pulsating output torque. Alleviation of these effects, with varying success, can be obtained by appropriately switching all phases at different times or by simultaneously switching certain winding combinations that are distributed symmetrically about the stator periphery and bear certain positional relationships with the permanent magnet poles of the rotor. However, switching of adjacent windings at different times leads to detrimental effects if the windings are linked to a continuous magnetic circuit path, as
- Heidelberg et al. alleviates this problem to some extent by grouping pluralities of stator poles in separate magnetic circuit paths.
- the magnetic circuit path discontinuity between adjacent groups effects an isolation of magnetic flux, thus reducing transformer like magnetic flux interference between groups.
- a torque ripple effect can still exist.
- Heidelberg et al. provides modifications in which some poles of a group are not wound and/or the pole structure of all poles within a group are not of uniform configuration, thus deterring the effects of torque ripple and flux interference between adjacent poles. Such modifications sacrifice torque characteristics. If fewer poles is are wound, flux generation capability is reduced. The unwound poles do not contribute to torque and can negatively interact with rotor permanent magnets.
- Non-uniform pole configuration modifications in Heidelberg et al. are coupled with non-uniform pole windings. Such configurations complicate the manufacturing process and compromise motor efficiency.
- Such a vehicle motor drive should advantageously provide ready accessibility to the various structural components for replacement of parts at a minimum of inconvenience.
- the present invention fulfills the above-described needs, at least in part, in the provision of a rotary direct current electric motor in which rotor and stator members
- WDC99576743-1 0573570015 are each configured as annular rings, concentric with respect to each other, about an axis of rotation.
- Either of the rotor or stator members is formed of groups of electromagnet pole pairs, the groups substantially equidistantly distributed along the angular extent of the annular ring, each of the groups comprising magnetic material magnetically isolated and separated from the other groups.
- the other member comprises a plurality of permanent magnet poles substantially equidistantly distributed with alternating magnetic polarity along the angular extent of the radial air gap formed between the members, the permanent magnet poles having a common magnetic return path.
- each group of electromagnet pole pairs are wound, the windings together being switchably energized for driving electromotive interaction between the stator and rotor.
- an even number of poles, two per pole pair, are provided for each electromagnet group.
- the poles of each pole pair are oppositely wound to provide opposite north/south polarities.
- each group can comprise a plurality of poles, it is preferable to provide only a single pole pair for each group.
- Switched energization of only a single pole pair wherein current in the windings is reversed, aids change of magnetic polarities of the poles without deleterious flux effects for the particular pole pair.
- Magnetic path isolation of the individual pole pair from other pole groups eliminates a flux transformer effect on an adjacent group when the energization of the pole pair windings is switched. The lack of additional pole pairs within the group eliminates precludes any such effects within a group.
- WDC99 576743-1.057357.0015 permanent magnet poles, spacing among various poles and other structural interrelationships.
- implementation of a switching scheme can be made dependent upon relative position between rotor and stator. Switching may be performed by a mechanical commutator or electronic activation in response to signals generated by a position sensor. While various position sensing means are well known in the art, any of which may be employed to generate such signals, the use of a resolver has been found to be preferable. The resolver output can then be used by an encoder to encode signals for application to a microprocessor based control circuit.
- the present invention has useful applicability in various motor drive applications, it is advantageously suitable for a vehicle drive in which the rotor is structured to surround the stator, the rotor being secured to a housing for direct attachment to a vehicle wheel.
- the annular rotor is thus at a substantial radial distance from the axis of rotation.
- the rotor housing is journalled for rotation about a stationary shaft at the axis of rotation through bearings.
- the rotor comprises permanent magnets
- a large number of permanent magnets can be substantially evenly distributed along the annular ring.
- a programmed microprocessor has the capability of generating extremely high rate of switching signals, a wide vehicle speed range is available without need for transmission gear shifting.
- the groups of separate electromagnets form a relatively thin annular stator ring that is spaced from the axis of rotation by a radial distance, which preferably is substantially greater than the radial dimension between inner and outer diameter boundaries of the stator ring, and secured to the shaft.
- the configuration of the present invention wherein electromagnet pole pairs each form isolated magnetic structures formed in a thin annular ring, has been found to provide advantageous
- each stator group is individually secured in the stator annular ring structure, wherein removal and replacement of an individual stator group is facilitated. Thus, if a particular stator winding group should become damaged, for example by a fault in the pole structure or winding, the individual stator group can be replaced without removing or replacing the entire stator unit. As a related advantage, with the use of a large number of single pole pair stator groups, the motor can continue to operate in a satisfactory manner even if one or more particular electromagnet pole group energization fails.
- a further advantage of the present invention is that, to a large extent, stator and rotor pole face dimensions and spacings between poles are relatively independent of each other.
- a timed switched energization scheme can be programmed to be optimized for a particular structural configuration.
- An odd number of stator groups is utilized.
- the stator poles have pole faces at the air gap that are of substantially uniform angular extent.
- the permanent magnet rotor poles are of substantially equal angular dimensional extent at the air gap, which is different from the stator pole face dimension.
- the angular distance between the centers of the pole faces of each stator group is substantially uniform throughout the periphery of the stator and differs from the angular distance between the centers of the stator pole faces of adjacent groups.
- the angular distance between the centers of the pole faces of each stator group also is different from the
- Gaps between adjacent stator pole faces within each group are substantially equal for all groups and different from gaps between adjacent stator groups.
- the rotor pole faces are separated substantially uniformly by gaps, the gaps between adjacent rotor pole faces being different from the gaps between adjacent stator pole face within a stator group.
- Fig. 1 is a plan diagram of a stator and rotor layout of a preferred embodiment of the motor of the present invention.
- Fig. 2 is three dimensional perspective diagram of the stator and rotor pole structure of the embodiment of Fig. 1.
- Fig. 3 is a partial cutaway diagram taken at a section of Fig. 2, illustrating the stator structure of the present invention.
- Fig. 4 is a partial detailed sectional diagram illustrating the motor structure of the invention, particularly suitable for use in driving a vehicle wheel.
- Fig. 5 is an exploded view of the motor structure shown partially in section in
- Fig. 6 is a perspective outside view of an assembled wheel hub housing enclosing the motor in accordance with the present invention.
- Fig. 7 is a block diagram illustrative of a control system for driving the motor of the present invention.
- Fig. 8 is a schematic plan view of an alternative embodiment of the present invention in which the rotor comprises separate electromagnet groups of pole pairs which surround via a radial air gap a permanent magnet stator.
- Fig. 1 is a plan diagram of a stator and rotor layout of a preferred embodiment of the motor of the present invention.
- Rotor member 10 is an annular ring structure
- WDC99 576743-1.057357.0015 having sixteen permanent magnets 12 substantially evenly distributed along cylindrical back plate 14.
- the permanent magnets are rotor poles that alternate in magnetic polarity along the inner periphery of the annular ring.
- the back plate comprises magnetically permeable material that serves as a magnetic return path between adjacent permanent magnetic poles 12.
- the rotor surrounds a stator member 20, the rotor and stator members being separated by a radial air gap.
- Stator 20 comprises seven elements or groups of pole pairs 22 of uniform construction that are evenly distributed along the air gap.
- Each stator group comprises a generally u-shaped magnetic structure 24 having two pole faces 26 at the air gap.
- Each stator group structure is separate, and magnetically isolated, from adjacent groups.
- the legs of the pole pairs are wound with windings 28.
- the windings of each stator group are connected together so as to be simultaneously activated when connected to a dc source of energization.
- the windings are configured to provide opposite north/south polarities to the poles of each pole pair, thereby forming an electromagnet. Reversal of polarity of energization effects reversal of the magnetic polarities of the pole pair.
- Appropriate timed switching of stator winding energization along the radial air gap effects electromotive force generation through interaction of magnetic forces between the stator and rotor across the air gap.
- the rotor permanent magnet poles are all of uniform angular extent along the air gap and separated from each other by angular gaps of uniform extent. Subject to these uniformity relationships, the actual dimensions of the rotor pole faces and gaps therebetween are variable and can be optimized in accordance with application environment. It is to be understood that any even number of rotor poles may be employed, sixteen being shown in the Fig. 1 simply for purposes of illustration.
- the rotor permanent magnet poles are all of uniform angular extent along the air gap and separated from each other by angular gaps of uniform extent. Subject to these uniformity relationships, the actual dimensions of the rotor pole faces and gaps therebetween are variable and can be optimized in accordance with application environment. It is to be understood that any even number of rotor poles may be employed, sixteen being shown in the Fig. 1 simply for purposes of illustration.
- the rotor permanent magnet poles are all of uniform angular extent along the air gap and separated from each other by angular gaps of uniform extent. Subject to these uniformity relationships, the actual dimensions of the
- stator pole faces are all of uniform angular extent, preferably of a different dimension than that of the rotor angular pole face.
- Stator elements 24 are secured, in a manner more fully described hereinafter, to a non magnetically permeable support structure, whereby the stator elements form an annular ring configuration.
- the poles within each stator group are separated by radial gaps that are uniform for all stator groups. The extent of these gaps is different from the spacing between poles of adjacent stator groups.
- the stator pole gaps and group spacings are each different from the rotor angular pole gaps.
- the radial extent of the stator annular structure i.e., the distance between inner and outer diameters, is substantially less than the distance between the center axis of rotation and the inner diameter of the stator. This relatively narrow radial stator dimension provides a favorable concentration of flux within each stator element structure focussed at the air gap.
- stator pole pair group may comprise a plurality of pole pairs sharing a common isolated magnetically permeable structure, there being an even number of poles in each group.
- a large number of stator and rotor poles can be implemented. Such implementation can be coordinated with the control capabilities of control system to be used, the number of separate stator groups also being set accordingly.
- WDC99 576743-1.057357.0015 is of particular advantageous utility for driving a vehicle, wherein the motor structure is housed within a wheel.
- the concentric rotor and stator members in such an environment are located at the wheel rim, at a substantial radial distance from the axis of rotation.
- the large rim diameter provides ample room to accommodate a large plurality of individual rotor and stator poles, thus facilitating flexibility of control.
- Fig. 2 is a perspective view of a rotor and stator assembly of the motor embodiment of Fig. 1.
- the annular rotor, including back plate 14 and permanent magnets 12 is enclosed by a ring housing member 30, which may be formed of aluminum or other non magnetic or nonferrous material.
- the stator groups are rigidly secured by two plates 32, only one of which is shown in Fig. 2, Fig. 3 is a cutaway view of the stator structure taken at a section intersecting shaft 34 at the axis of rotation.
- Each plate 32 is a of rigid circular configuration having an outer diameter and a circular cutout portion at its center that forms an inner diameter. The inner diameter is sized to fit the stationary shaft 34 and to be affixed to a shaft member.
- the plate is provided with holes appropriately spaced to mate with corresponding through holes in the stator elements.
- Each of the plates 32 is secured to the shaft 34 and spaced from each other appropriately to be secured to, and sandwich, the pole structures 24 of the stator elements at each axial side thereof via the mating holes.
- the plates can be selectably removable to facilitate removal and replacement of an individual stator element that may become damaged or in need of repair, without replacement of the entire unit.
- maintenance of the stator is a relatively simple matter of inserting a spare stator element at the appropriate mating position between the plates and connecting the ends of the windings.
- FIG. 4 is a more detailed sectional diagram illustrating the motor structure of this embodiment of the invention, particularly suitable for use in driving a vehicle wheel of an automobile, motorcycle, bicycle, or the like.
- the stationary shaft 34, plates 32, stator structures 24 and windings 28, are contained within housing 40, to which annular rotor backplate 14 and permanent magnets 12 are attached.
- Housing 40 is journalled to the shaft on each side of plates 32 through bushings 36 and bearings 38.
- the ring housing member 30 is rigidly attached to housing 40 and the rotor, and functions as a rim for fitting a vehicle tire.
- FIG. 5 is an exploded view of the motor structure shown partially in section in Fig. 4, while Fig. 6 is a perspective outside view of the assembled wheel hub portion.
- Connector portions 42 are provided to illustrate use of the motor in a bicycle type environment each of connector portions 42 can be affixed to a respective portion of a bicycle fork.
- the drawing figures also exemplify the use of various standard washer, nut and bolt elements for assembling various elements. It is to understood that any appropriate means well known in the art can be used for assembly of the various elements.
- Fig. 7 is a block diagram illustrative of a control system for driving the motor of the invention of the embodiment of Fig. 1.
- Energizing current for the individual stator electromagnet windings 20 is provided by battery supply source 50.
- switched energization of the stator windings can be implemented using a well known mechanical commutator arrangement, electronic switching circuits have become commonplace and provide superior control advantages. It is preferable, therefore, to connect stator windings 20 to battery 50 through switching circuit 52.
- Switching circuit 52 may comprise any well known controlled bidirectional electronic circuit capable of supplying battery energization, switchable in polarity, individually to the
- Controller 54 preferably comprises a microcontroller, microprocessor or the like that can be programmed to apply appropriately timed control signals to switching circuit 52 in accordance with feedback signals generated in response to the relative movement between stator and rotor.
- Various position sensors are known in the art that are capable of producing motor feedback signals for utilization by the controller.
- Resolver 56 is coupled to rotate with rotor 10 and generates signals indicative of rotor angular position. These signals are encoded by encoder 58 appropriately for use by the controller.
- the controller can be programmed to output optimally timed control signals to be matched with the received encoder signals, based on the specific dimensional configuration of the stator elements.
- Fig. 8 is a schematic plan view of an embodiment in which the rotor comprises separate electromagnet groups of pole pairs which surround via a radial air gap a permanent magnet stator.
- this plan view is similar to the structure disclosed in the inventors' copending application, serial number 09/571,174 filed May 16, 2000, the disclosure of which hereby is incorporated by reference.
- the structural arrangement and assembly of the elements of this embodiment are analogous to the embodiment illustrated in Figs. 2-6.
- DC99 576743-1 057357 0015 In this disclosure there is shown and described only preferred embodiments of the invention and but a few examples of its versatility.
- each inner and outer annular member may comprise either the stator or rotor and may comprise either the group of electromagnets or permanent magnet ring.
- windings may instead be provided in a non-salient slotted structure.
- electromagnet energization sequences can vary depending on various considerations. Energization of the electromagnets may be switched sequentially along the air gap periphery or in a different order. Electromagnet groups may all be energized at all times, although switched at individually programmed times. Conversely, individual electromagnets may be de- energized at predetermined sequentially induced, randomly induced, or non-sequentially induced intervals.
- the present invention has been exemplified herein in the context of a direct current motor, one of ordinary skill in the art would appreciate that the principles described are applicable to synchronous type alternating current motors and motors having wound elements energizable by a variety of pulse waveforms.
- the source of electrical power for driving the motor is not limited to a battery, buy may include, for example, an alternating current source. Such an alternating current source can be
- WDC99 576743-1.057357.0015 converted to direct current or pulse waveform supply or can be used without such conversion to drive the motor as an alternating current synchronous motor.
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2002/009624 WO2003085807A1 (en) | 2002-03-29 | 2002-03-29 | Rotary electric motor having concentric annular members |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1490953A1 true EP1490953A1 (en) | 2004-12-29 |
Family
ID=28789605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02807181A Withdrawn EP1490953A1 (en) | 2002-03-29 | 2002-03-29 | Rotary electric motor having concentric annular members |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP1490953A1 (en) |
JP (1) | JP2005522174A (en) |
KR (1) | KR100712339B1 (en) |
CN (1) | CN1623268A (en) |
AU (1) | AU2002367852A1 (en) |
BR (1) | BR0215671A (en) |
CA (1) | CA2477430C (en) |
IL (1) | IL163700A0 (en) |
MX (1) | MXPA04009311A (en) |
WO (1) | WO2003085807A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050104470A1 (en) * | 2003-11-13 | 2005-05-19 | Perkins William P. | Integrated stator-axle for in-wheel motor of an electric vehicle |
JP3638944B1 (en) | 2004-02-04 | 2005-04-13 | 山洋電気株式会社 | Method for determining pole arc ratio of rotary motor with built-in permanent magnet and rotary motor with built-in permanent magnet |
DE102004016743A1 (en) * | 2004-04-05 | 2005-11-10 | Minebea Co., Ltd. | Stator arrangement for a polyphase electric motor |
US7635932B2 (en) * | 2004-08-18 | 2009-12-22 | Bluwav Systems, Llc | Dynamoelectric machine having heat pipes embedded in stator core |
DE102011018539B4 (en) | 2011-04-18 | 2022-10-13 | Hans-Jürgen Esch | Design principle for electrical machines with an external rotor |
FR2979769B1 (en) * | 2011-09-01 | 2013-08-23 | Renault Sa | ROTATING ELECTRIC MACHINE |
US8994244B2 (en) * | 2012-08-01 | 2015-03-31 | Nidec Motor Corporation | Motor stator with reduced coil configuration |
JP2015019491A (en) * | 2013-07-10 | 2015-01-29 | 株式会社コア ライン | Power generation unit |
DE112014006465B4 (en) * | 2014-03-14 | 2022-03-03 | Mitsubishi Electric Corporation | Magnetic position sensing device and magnetic position sensing method |
WO2017094271A1 (en) * | 2015-12-03 | 2017-06-08 | 三菱電機株式会社 | Axial-gap dynamo-electric machine and method for manufacturing same |
CN106314666B (en) * | 2016-08-24 | 2020-05-19 | 东北大学秦皇岛分校 | Magnetic force boosting bicycle |
FR3061370B1 (en) * | 2016-12-27 | 2022-05-13 | Francecol Tech | ELECTROMAGNETIC ASSEMBLY WITH POLYPHASE STRUCTURE |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3214663A (en) * | 1962-11-21 | 1965-10-26 | Black & Decker Mfg Co | Semiconductor commutated motor system with capacitive pickup |
US5023527A (en) * | 1974-06-24 | 1991-06-11 | General Electric Company | Control circuits, electronically commutated motor systems and methods |
US4315171A (en) * | 1977-05-23 | 1982-02-09 | Ernest Schaeffer | Step motors |
DE3414312A1 (en) * | 1984-04-16 | 1985-10-24 | Magnet-Motor Gesellschaft für magnetmotorische Technik mbH, 8130 Starnberg | ELECTRICALLY CONTROLLED ELECTRIC MOTOR |
CA1323650C (en) * | 1985-11-12 | 1993-10-26 | Franklin Lee Forbes | Electrically commutated motor having an edgewise wound yoke |
US5015903A (en) * | 1988-08-15 | 1991-05-14 | Pacific Scientific Company | Electronically commutated reluctance motor |
US5625353A (en) * | 1992-12-29 | 1997-04-29 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Device for transmitting signals from position detector and method of such signal transmission |
US6028385A (en) * | 1995-10-19 | 2000-02-22 | Tridelta Industries, Inc. | Switched reluctance motor |
US6169350B1 (en) * | 1998-03-03 | 2001-01-02 | Tai-Her Yang | Electrical machine magnetic circuit structure in which pole-to-rotor air clearances vary asymmetrically to provide a more uniform flux distribution |
DE19909227B4 (en) * | 1998-03-06 | 2005-08-25 | Saia-Burgess Ozd Kft. | Two-phase motor, namely stepper motor or synchronous motor with two soft-magnetic stator parts |
-
2002
- 2002-03-29 AU AU2002367852A patent/AU2002367852A1/en not_active Abandoned
- 2002-03-29 KR KR1020047015080A patent/KR100712339B1/en not_active IP Right Cessation
- 2002-03-29 IL IL16370002A patent/IL163700A0/en unknown
- 2002-03-29 CA CA002477430A patent/CA2477430C/en not_active Expired - Fee Related
- 2002-03-29 BR BR0215671-7A patent/BR0215671A/en not_active IP Right Cessation
- 2002-03-29 EP EP02807181A patent/EP1490953A1/en not_active Withdrawn
- 2002-03-29 WO PCT/US2002/009624 patent/WO2003085807A1/en not_active Application Discontinuation
- 2002-03-29 CN CNA028286898A patent/CN1623268A/en active Pending
- 2002-03-29 JP JP2003582881A patent/JP2005522174A/en active Pending
- 2002-03-29 MX MXPA04009311A patent/MXPA04009311A/en unknown
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO03085807A1 * |
Also Published As
Publication number | Publication date |
---|---|
IL163700A0 (en) | 2005-12-18 |
KR20040104543A (en) | 2004-12-10 |
KR100712339B1 (en) | 2007-05-02 |
CA2477430C (en) | 2006-12-05 |
BR0215671A (en) | 2005-02-01 |
CN1623268A (en) | 2005-06-01 |
CA2477430A1 (en) | 2003-10-16 |
MXPA04009311A (en) | 2005-01-25 |
AU2002367852A1 (en) | 2003-10-20 |
WO2003085807A1 (en) | 2003-10-16 |
JP2005522174A (en) | 2005-07-21 |
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