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| Application No. | Application Title | Issue Date |
| 20090152958 | VACUUM SEALING RADIO FREQUENCY (RF) AND LOW FREQUENCY CONDUCTING ACTUATOR A linear actuator comprised of an actuator body having a first portion and a second portion, each arranged along a longitudinal axis of the actuator body. A vacuum bellows is concentrically located in the first portion and is configured to seal a vacuum environment from... | 06/18/2009 |
| 20090152956 | Electric machinery with a conduction winding excited magnetic poles wraps PM magnetic pole An electric machinery provided with a PM magnetic pole wrapped by conduction winding excited magnetic poles is related to an innovative design of having a PM magnetic pole wrapped by individual magnetic poles of conduction winding excited so to prevent the PM magnetic p... | 06/18/2009 |
| 20090152957 | Electric machinery of magnetic pole or magnetic circuit wrapped PM magnetic pole An electric machinery provided with a PM magnetic pole wrapped by a permeable polar face and a magnetic circuit from an individual magnetic pole provides an innovative design of having disposed the PM magnetic pole wrapped between the permeable polar face and the magnet... | 06/18/2009 |
| 20090152959 | SECONDARY PART OF A LINEAR DRIVE A secondary part of a linear drive, in particular of a cylindrical or planar linear drive, has permanent magnets arranged on a soft-magnetic mount in perpendicular relationship to the movement direction of the linear drive. The permanent magnets are curved at least on t... | 06/18/2009 |
| 20090146507 | Linear Motor Actuator A linear motor actuator includes a raceway member 16 having a cylindrical shape in which a moving block moves in a hollow portion, the raceway member having a cross-sectional shape which has a narrower opening 15 than a width of the moving block 40 ... | 06/11/2009 |
| 20090140600 | WINDING MODULE OF PERMANENT MAGNET ELECTRIC MACHINERY A winding module of permanent magnet electric machinery is described, in which coils of an electric machinery winding and a sensing device are integrally arranged. The winding module includes a base, a plurality of electric machinery windings formed on the base, and a p... | 06/04/2009 |
| 20090140581 | VOICE COIL MOTORS A voice coil motor. A guide bar connects to a fixed base. A coil connects to the fixed base and includes a first winding portion and a second winding portion. A current direction in the first winding portion is opposite that in the second winding portion. A support base... | 06/04/2009 |
| 20090140582 | PLANAR MOTOR AND STAGE USING THE SAME A planar motor includes a movable body and a stator configured to drive the movable body in a plane. The stator includes a first stator unit and a second stator unit. The movable body is moved in a first direction by a force acting between the movable body and the first... | 06/04/2009 |
| 20090134720 | Method of magnetizing the shaft of a linear stepper motor In a preferred embodiment, a method of providing axially alternating N and S poles in a portion of an axially extending, cylindrical, smooth shaft for a linear stepper motor, including: providing a magnetizing fixture including: a hollow cylindrical mandrel formed from ... | 05/28/2009 |
| 20090127940 | Linear motor A linear motor (1) has a rotor (2) which is mounted so as to be guided in an axially reciprocating manner in a stator (4) having at least one coil (5) with a plurality of windings (6), with at least one winding (6) forming a coo... | 05/21/2009 |
| 20090127941 | LINEAR DRIVE WITH A MOVING, REDUCED-MASS AND LATERALLY GUIDED PASSIVE UNIT The invention relates to a linear drive having a stationary active unit (1), a stationary return flow element (11), a movably mounted passive unit in the form of a thin tooth rack (10) and a bearing unit (15), which allows the relative moveme... | 05/21/2009 |
| 20090127939 | LINEAR SYNCHRONOUS MOTOR AND LINEAR MOTOR ACTUATOR Provided is a linear synchronous motor in which, when a three-phase alternating current passes through a coil of a mover, thrust forces generated by the alternating currents of each phase are equalized, thereby making it possible to minimize variation in thrust force, t... | 05/21/2009 |
| 20090127938 | LINEAR MOTOR COIL ASSEMBLY AND LINEAR MOTOR An ironless linear motor (5) comprising a magnet track (53) and a coil assembly (50) operating in cooperation with said magnet track (53) and having a plurality of concentrated multi-turn coils (31a-f, 41a... | 05/21/2009 |
| 20090121556 | Electric machinery of permeable polar face & magnetic circuit sandwiched PM magnetic pole An electric machinery provided with a PM magnetic pole sandwiched by a permeable polar face and a magnetic circuit from an individual magnetic pole provides an innovative design of having disposed the PM magnetic pole sandwiched between the permeable polar face and the ... | 05/14/2009 |
| 20090121572 | Electric machinery of permeable polar face & magnetic circuit sandwiched PM magnetic pole An electric machinery provided with a PM magnetic pole sandwiched by a permeable polar face and a magnetic circuit from an individual magnetic pole provides an innovative design of having disposed the PM magnetic pole sandwiched between the permeable polar face and the ... | 05/14/2009 |
| 20090120967 | COUPLING SYSTEM FOR USE WITH FLUID DISPLACEMENT APPARATUS A magnetic coupling system may be used in a fluid displacement apparatus to magnetically couple a drive shaft to a piston. The magnetic coupling system may include first and second magnetic couplers at the ends of the drive shaft and piston, respectively. The first magn... | 05/14/2009 |
| 20090121558 | Flexible Electromagnetic Valve Actuator Modeling and Performance The system contains a first planar permanent magnet having a first direction of magnetization and a first opening formed therein. A second planar permanent magnet has a second direction of magnetization and a second opening formed therein. The second opening is axially ... | 05/14/2009 |
| 20090122380 | MICROACTUATOR, OPTICAL APPARATUS, AND OPTICAL SWITCH A microactuator has a fixed portion and a movable portion that is provided in such a way as to be movable relative to the fixed portion between a first position at which it is in contact with a predetermined portion of the fixed portion and a second position away from t... | 05/14/2009 |
| 20090121557 | Electric machinery with a conduction winding excited magnetic poles sandwiched PM magnetic pole An electric machinery provided with a PM magnetic pole sandwiched by conduction winding excited magnetic poles is related to an innovative design of having a PM magnetic pole sandwiched by individual magnetic poles of conduction winding excited so to prevent the PM magn... | 05/14/2009 |
| 20090115261 | Air Floating Linear Motor An air floating linear motor comprises a fixed part and a movable part. The movable part floats above the fixed part. The movable moves with respect to the fixed part by the magnetic interaction. The fixed part is disposed with a receiving portion for assembling an exte... | 05/07/2009 |
| 20090108683 | OBJECTIVE LENS DRIVE AND OPTICAL PICKUP APPARATUS An objective lens drive and an optical pickup apparatus are provided which can be reduced in size. Two tilt coils and two tracking coils are disposed so that among planes defined by the respective coils, a plane perpendicular to a winding direction thereof is parallel t... | 04/30/2009 |
| 20090096298 | LINEAR-MOTION ACTUATOR A linear-motion actuator includes a fixed side member, a rotor rotatably supported by the fixed side member, and an output shaft disposed on an inner side of the rotor and movable in an axial direction. The linear-motion actuator may further include a rotation-linear mo... | 04/16/2009 |
| 20090096296 | RELIEVING STRESS IN A FLEXURE A flexure includes a shaped sheet of material having a middle portion coupled to a magnet, an end portion, and a corner portion between the end portion and the middle portion, the corner portion including a curve with a concave curvature relative to a point of view outs... | 04/16/2009 |
| 20090096297 | Linear motor, drive stage, and XY drive stage A linear motor is provided in which a magnetic attracting force acting between a stator and a mover is mechanically cancelled by arrangement of armature units, and can be easily assembled. The linear motor includes a primary-side member in which magnets are arranged in ... | 04/16/2009 |
| 20090091194 | ACTUATOR When currents are applied to driving coils, electromagnetic forces are generated between the currents and magnetic fluxes passing through gaps, a shaft member is swung in one direction, and a tilt angle of a mirror (controlled object) changes relative to a support cente... | 04/09/2009 |
| 20090085412 | BRUSHLESS ELECTRIC MACHINE A first member (40a) has a magnet assembly (20) that includes a plurality of permanent magnets (10) held with their homopoles contacting one another. A second member (50a) includes magnet coils (30), and is designed to be... | 04/02/2009 |
| 20090086177 | LITHOGRAPHIC APPARATUS HAVING A LORENTZ ACTUATOR WITH A COMPOSITE CARRIER An actuator is configured to produce a displacement force between a first and a second part to displace the first and second parts relative to each other. The Actuator includes a first magnet subassembly, attached to one of a first and a second part, and an electrically... | 04/02/2009 |
| 20090079275 | ACTUATOR An actuator in which, when a supporting shaft, where a mirror (control object) is provided, is tilted by receiving an electromagnetic force of a magnetic driving mechanism, small balls of a supporting mechanism move in an axial direction in a space provided between an o... | 03/26/2009 |
| 20090072633 | HIGH PERFORMANCE LINEAR MOTOR AND MAGNET ASSEMBLY THEREFOR A magnet assembly includes a back iron and an array of magnets. The back iron is in the form of a plate having opposed surfaces. The magnets are arranged along one of the surfaces, with the other surface being dimensioned and configured according to the magnetic field d... | 03/19/2009 |
| 20090072634 | ELECTRICAL MACHINE The invention relates to an electrical machine (1, 110), which is in particular a synchronous machine, which has a primary part (3, 130) and a secondary part (5, 120), wherein the primary part (3, 130) has a) a first means (9) for prod... | 03/19/2009 |
| 20090066168 | VERTICAL ACTUATOR HAVING A GRAVITY COMPENSATION DEVICE A vertical actuator has a stationary part that includes an upper part made of magnetic material which is magnetically separated from a yoke which bears a coil. The upper magnetic part generates an overall reluctance force on the movable part of the actuator which, over ... | 03/12/2009 |
| 20090058200 | Linear Drive with a Reduced Axial Force Component, as Well as a Linear Compressor and Refrigerator A linear drive including a stator and a rotor configured for linear reciprocal movement along an axis, with the stator having a magnetic-field guide core having a plurality of legs extending each with one foot substantially toward the rotor, with the rotor having a plur... | 03/05/2009 |
| 20090058199 | DRIVING APPARATUS, EXPOSURE APPARATUS, AND DEVICE MANUFACTURING METHOD A driving apparatus includes a mover having a magnet, and a stator having a coil. The driving apparatus is adapted to control the electric current to be applied to the coil to cause relative movement between the mover and the stator. The stator includes a coil holding m... | 03/05/2009 |
| 20090058198 | Electrical Linear Drive An electrical linear drive device comprises an outer housing consisting of a housing tube and two housing covers disposed at the ends thereof The outer housing defines in the interior thereof a receiving space, into which the drive part of a drive unit in the form of an... | 03/05/2009 |
| 20090051227 | LINEAR MOTOR In prior art linear motor, a large burden is applied to a mechanism for supporting a moving member because a magnetic attracting force acts in one direction between armature and moving member and the structure is distorted to cause various troubles. In an inventive line... | 02/26/2009 |
| 20090051894 | MOVABLE BODY DRIVE METHOD AND MOVABLE BODY DRIVE SYSTEM, PATTERN FORMATION METHOD AND APPARATUS, EXPOSURE METHOD AND APPARATUS, DEVICE MANUFACTURING METHOD, AND MEASURING METHOD A wafer stage is moved while monitoring a position using an X interferometer and a Y interferometer, and a Z position of a Y scale arranged on the wafer stage upper surface is measured using a surface position sensor. In this case, for example, from a difference of meas... | 02/26/2009 |
| 20090051892 | MOVABLE BODY DRIVE METHOD AND MOVABLE BODY DRIVE SYSTEM, PATTERN FORMATION METHOD AND APPARATUS, EXPOSURE METHOD AND APPARATUS, DEVICE MANUFACTURING METHOD, MEASURING METHOD, AND POSITION MEASUREMENT SYSTEM By moving a wafer stage while monitoring an XY position of a wafer stage WST using an interferometer system, and scanning a Y scale in an X-axis direction and a Y-axis direction using a surface position sensor, an XY setting position of the surface position sensor is me... | 02/26/2009 |
| 20090044340 | Linear Actuator for a Piece of Furniture A linear actuator for a piece of furniture, namely a bed or chair comprising a housing (8) of plastic consisting of two parts (8a, 8b) with a joining edge (8c) in the longitudinal direction of the housing. In both ends of... | 02/19/2009 |
| 20090045682 | Stacked rail stator and capacitive armature linear motor A linear motor for high velocity drive has a transformer which has a magnetic circuit with a central limb; the two ends of stacked unit- or fractional-turn secondary winding of the transformer project at an angle to the longitudinal axis of the central limb; an armature... | 02/19/2009 |
| 20090039713 | Rotary Linear Drive Having A Transmitter Device The aim of the invention is to provide a linear/rotation drive with an improved transmitter device for detecting the linear and rotational movements. For this purpose, the transmitter device (12, 14, 16, 17) for detecting the linear movement and/or rotational mov... | 02/12/2009 |
