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| Number | Title | Issue Date |
| 8008816 | Device with magnetoplastic and/or magnetoelastic thin-film transducer and pick-up coil for harvesting energy A magnetoplastic and/or magnetoelastic material transduces linear motion, delivered to it by a mechanical connection, into a change of magnetic field, via twin boundary deformation. A bias magnetic field assures a net change of magnetization during the deformation, ... | 08/30/2011 |
| 7999422 | Linear actuator using magnetostrictive power element A linear actuator includes a substantially cylindrical magnetostrictive element disposed in a housing. A retainer is cooperatively engaged with the housing and an exterior of the magnetostrictive element such that relaxed portions of the magnetostrictive element are... | 08/16/2011 |
| 7952239 | Bimetallic strips for energy harvesting, actuation and sensing Disclosed are bimetallic strips that incorporate magnetostrictive materials to enhance and provide sensing, actuating and energy harvesting functions. The bimetallic strips include a positive magnetostrictive Fe-based alloy layer and a flexible layer. The flexible l... | 05/31/2011 |
| 7928614 | High-performance ultrasonic transducer and method for the production thereof The invention relates to an ultrasonic transducer, comprising an ultrasonic flange and a magnetostrictive driver, wherein the driver is connected to a contact surface of the ultrasonic flange that faces the same, and wherein the driver and the ultrasonic flange are ... | 04/19/2011 |
| 7834490 | Bimetallic strips for energy harvesting, actuation and sensing Disclosed are bimetallic strips that incorporate magnetostrictive materials to enhance and provide sensing, actuating and energy harvesting functions. The bimetallic strips include a positive magnetostrictive Fe-based alloy layer and a flexible layer. The flexible l... | 11/16/2010 |
| 7612473 | Driving device and method A driving device has a magnetostrictive actuator that drives a load member based on a driving signal, a sensor that detects an action of the load member, and a compensation unit that performs feedback compensation on the driving signal which the magnetostrictive act... | 11/03/2009 |
| 7564152 | High magnetostriction of positive magnetostrictive materials under tensile load An elongate structure having a magnetostrictive material composition is subjected to tensile stress in the longitudinal-axial direction, thereby generally orienting the magnetization of the elongate structure in the longitudinal-axial direction. Electrical current i... | 07/21/2009 |
| 7462960 | Driver for an ultrasonic transducer and an ultrasonic transducer An ultrasonic transducer driver has a giant magnetostrictive element, a fastener for holding the giant magnetostrictive element under mechanical pressure, a first field generator for providing a magnetic bias field, a second field generator for providing a magnetic ... | 12/09/2008 |
| 7456530 | Magnetostrictive actuator A magnetostrictive actuator has magnetostrictive element having a magnetostrictive, a driving rod moving in a displacement direction of the magnetostrictive element, which is connected with the magnetostrictive element and made of a ferromagnet, a solenoid coil appl... | 11/25/2008 |
| 7453173 | Electromechanical transformation device An electromechanical transformation device has a magnetostrictive actuator and a driving device that drives the magnetostrictive actuator. The driving device drives the magnetostrictive actuator based on any one of the vibration signal and the audio signal or mixed ... | 11/18/2008 |
| 7436104 | Non-linear piezoelectric mechanical-to-electrical generator system and method A non-linear, piezoelectric mechanical-to-electrical generator especially well adapted for use with a Stirling engine, to thus form an electrical power generation system. In one form the generator includes a flexible beam that is configured in a bowed orientation to... | 10/14/2008 |
| 7394183 | Kinetic micro-generator: a method of generating electrical current via magnetostriction and the piezoelectric effect An apparatus constructed from a combination of a magnetic north orienting lodestone, magnetostrictive ferrogel, and piezoelectric crystals can generate electrical current when exposed to kinetic motion. The apparatus is built in the shape of a geodesic sphere with t... | 07/01/2008 |
| 7370515 | Probes for use in scanning probe microscopes and methods of fabricating such probes Probes for use in a scanning probe microscope and methods of manufacturing such probes. Each probe includes a probe tip having a substantially vertical sidewall formed by an anisotropic etching process and a flared post underlying the probe tip that is formed by an ... | 05/13/2008 |
| 7358633 | Linear vibration motor using resonance frequency A linear vibration motor comprising a movable unit, a base assembly having a coil assembly, a housing and an elastic member, in which the movable unit has the maximum mass from a fixed housing volume. The elastic member has the outer periphery fixed to the ceiling o... | 04/15/2008 |
| 7352112 | Hybrid piezoelectric-magnetostrictive actuator Hybrid actuator. The actuator includes a piezoelectric actuator spaced apart from a magnetostrictive actuator. A linkage is in contact with the piezoelectric and magnetostrictive actuator, the linkage having an end including microgrooves. A rotatable shaft includes ... | 04/01/2008 |
| 7348710 | Robust electromechanical motor An electromechanical motor includes a rail to be moved, a dry, non-lubricated, sliding bearing for the rail, and driving members imposing a mechanical driving force on the rail. The bearing has two rail contacting portions. A first portion contacts the rail for obst... | 03/25/2008 |
| 7339291 | Ultrasonic transducer and ultrasonic vibration device using the same An ultrasonic transducer includes a giant magnetostrictive rod 12 of a columnar shape which is made of a giant magnetostrictive member, and vibration plates 14 and 16 which are made of plate members having a larger diameter than that of the gian... | 03/04/2008 |
| 7323960 | Electromagnetostrictive actuator An actuator includes an electromagnetostrictive element that has one end located on a front side and the other end located on a rear side. An output shaft penetrates the electromagnetostrictive element and is pressurized toward the rear side of the electromagnetostr... | 01/29/2008 |
| 7321185 | Active multistable twisting device Two similarly shaped, such as rectangular, shells are attached to one another such that they form a resulting thin airfoil-like structure. The resulting device has at least two stable equilibrium shapes. The device can be transformed from one shape to another with a... | 01/22/2008 |
| 7321176 | Multi pole electrical machine with reduced cogging force A multi pole electrical machine includes an armature and a stator. The armature is movable in a direction of armature motion with regard to said stator and includes armature pole pairs. These armature pole pairs follow each other in the direction of armature motion.... | 01/22/2008 |
| 7317272 | Rotor of motor A rotor for an electric motor includes a base plate (13) made of a magnetic material and coupled to a rotational shaft (12), a rotor core (18) provided on the base plate (13) and including a protrusion protruding axially relative to the b... | 01/08/2008 |
| 7308828 | Ultrasonic probe An ultrasonic probe has a probe proper, a connector and a cable for electrically connecting between the probe proper and the connector. The probe proper includes a transducer that converts between ultrasonic wave and electricity, and a phase change member having a p... | 12/18/2007 |
| 7298060 | Magnetoelectric devices and methods of using same The operational frequency of existing magnetoelectric materials having metallic or ceramic magnetostrictive materials and ceramic piezoelectric materials may be limited to a few kilohertz due to the presence of eddy-current losses in the metallic magnetostrictive ph... | 11/20/2007 |
| 7282822 | Sensor The disclosure relates to a method and an apparatus for sensing and indicating permanent state deviations via detection of temporary inner material oscillations in real time in parts of importance for hardware design and construction, within existing production equi... | 10/16/2007 |
| 7276824 | Oscillating system and tool for ultrasonic impact treatment Devices including a magnetostrictive transducer, an oscillating system and a tool for ultrasonic impact treatment of constructions, construction units and components of machines and mechanisms are disclosed. The invention provides high reliability of magnetostrictiv... | 10/02/2007 |
| 7275440 | Loop-shaped ultrasound generator and use in reaction systems Ultrasound for use in chemical reactions is generated by an electromagnet formed from an ultrasound transducer whose central feature is a loop of magnetostrictive material wound with coils oriented to produce an oscillating magnetostrictive force when an oscillating... | 10/02/2007 |
| 7265473 | Reduction of core-end losses of dynamoelectric machines by using lower core loss iron silicon punching Electric machines can be improved or uprated to reduce core-end losses using lower core loss material such as high grade iron silicon. A machine uprating entails removing at least a last one of the stacked lamination packages at each end of the stator core, and re-s... | 09/04/2007 |
| 7262526 | Rotor for permanent magnet motor of outer rotor type A rotor for a permanent magnet motor of an outer rotor type having a plurality of permanent magnets and disposed around a stator includes a frame, an annular iron core combined integrally with the frame, and a plurality of insertion holes formed in the core so that ... | 08/28/2007 |
| 7249725 | Thread carrying apparatus and a textile machine, in particular a weaving machine, including a thread carrying apparatus for this kind In accordance with the invention a thread carrying apparatus is proposed with a thread (2) lying in contact with or passing along the thread carrying apparatus with friction in the operating state. The thread carrying apparatus includes excitation means (3... | 07/31/2007 |
| 7246489 | Position control actuator system A position control actuator system includes a control element and first and second actuators. The first and second actuators are each comprised of magneto-active twinned material. The first actuator is configured to extend and drive the control element in a first di... | 07/24/2007 |
| 7245049 | Vibrator and method for manufacturing the same A vibrator of the present invention comprises a coreless coil (2), a driver (4) including a magnet (4a) inserted in the coreless coil (2), a yoke (4b) for pinching the coreless coil (2) and facing the magnet ( | 07/17/2007 |
| 7239057 | Single phase induction motor A single phase induction motor comprises: a stator installed at an inner circumferential surface of a motor body, the stator on which a plurality of coils are wound; a rotor rotatably installed at a center portion of the stator and provided with a rotation shaft at ... | 07/03/2007 |
| 7235910 | Selective etching process for cutting amorphous metal shapes and components made thereof A selective etching process cuts shapes from amorphous metal strip feedstock. The etching process comprises depositing a chemically resistant material to one side of the strip in a pattern that defines the requisite shape, mating the metal strip with a carrier strip... | 06/26/2007 |
| 7224814 | Two-way communication device A two-way communication device includes a magnetoelastic rod located between an inertial back mass and a front panel of low mass. A coil is located in the vicinity of the rod, and the rod and coil together define an audio-electric transducer. An electronic processin... | 05/29/2007 |
| 7218067 | Magnetic actuator drive for actuation and resetting of magnetic actuation materials A magnetic actuator is provided including a magnetic field-actuated material and a plurality of interconnected electrically conducting coils, each coil including a number of wire turns arranged relative to at least one other coil to produce at the magnetic field-act... | 05/15/2007 |
| 7208854 | Rotor cooling system for synchronous machines with conductive sleeve A wound field synchronous machine includes direct oil cooling along a conductive sleeve with elongated semi-arcuate shaped channels which alternate with damper bar channels containing tie-rod supports structures. With a reduction in sleeve thickness permitted by the... | 04/24/2007 |
| 7199495 | Magnetoelectric devices and methods of using same The operational frequency of existing magnetoelectric materials having metallic or ceramic magnetostrictive materials and ceramic piezoelectric materials may be limited to a few kilohertz due to the presence of eddy-current losses in the metallic magnetostrictive ph... | 04/03/2007 |
| 7196437 | Contraction type actuator A contraction type actuator 10 is provided which can efficiently and evenly apply a bias magnetic field to a magnetostrictive rod to obtain a large contraction amount, while having a small and simple structure. In the contraction type actuator 10 | 03/27/2007 |
| 7178787 | Valve assembly An improved valve assembly (100) includes a primary spring (142) which extends along a valve stem (144). A spring retainer (150) holds the primary spring (142) on the valve stem (144) and has a thread convolution (152... | 02/20/2007 |
| 7179339 | Terbium-dysprosium-iron magnetostrictive materials and devices using these materials A terbium-dysprosium-iron magnetostrictive material of the type Tb1-xDyxFe2-y wherein x is less than 0.7, and y is less than or equal to 0.1, and devices using these materials. ... | 02/20/2007 |
