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8434303 |
Driving device made of shape-memory alloy
A storing section (70) stores a second initial contact instruction value, which is predefined as an instruction value for positioning a movable portion (5) to a second contact position where the...
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8427030 |
Thermomagnetic generator
A thermomagnetic generator which converts thermal energy to electrical energy without intermediate conversion to mechanical work and which works at temperatures in the range from −20° C. to 20...
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8378207 |
System and method for using pre-equilibrium ballistic charge carrier refraction
A method and system for using a method of pre-equilibrium ballistic charge carrier refraction comprises fabricating one or more solid-state electric generators. The solid-state electric generators...
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8350444 |
Method and apparatus for conversion of heat to electrical energy using polarizable materials and an internally generated poling field
A method for converting heat to electricity by exploiting changes in spontaneous polarization that occur in electrically polarizable materials is described. The method uses an internally generated...
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8344585 |
Method and apparatus for conversion of heat to electrical energy using a new thermodynamic cycle
A method for converting heat to electricity is described. The method can be used to efficiently and economically generate electricity from thermal energy directly through ferroelectric or other...
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8339073 |
Shape memory alloy driver
A shape memory alloy driver comprises a displacement detection portion, a drive control portion, and a compensation calculation portion. The displacement detection portion detects displacement of a...
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8330323 |
Thermal-mechanical signal processing
A source signal is converted into a time-variant temperature field with transduction into mechanical motion. In one embodiment, the conversion of a source signal into the time-variant temperature...
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8324783 |
Non-decaying electric power generation from pyroelectric materials
A method, an apparatus and/or a system of non-decaying electric power generation from pyroelectric materials is disclosed. In one aspect, a method includes generating a substantially continuous...
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8310127 |
Connected energy converter, generator provided therewith and method for the manufacture thereof
A high-output energy converter of an output-improving thermionic generator, thermally connected to other generators without moving parts that utilize the residual energy from the thermionic...
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8304957 |
Thermomagnetic generator device and energy converting method
A generator device for converting thermal energy to electric energy. A magnetic circuit includes at least a portion made of a magnetic material. A temperature-varying device varies the temperature...
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8286424 |
Thermoelectric generator cooling system and method of control
An apparatus is provided that includes a thermoelectric generator and an exhaust gas system operatively connected to the thermoelectric generator to heat a portion of the thermoelectric generator...
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8269097 |
Thin film thermoelectric element including stress releasing elements
A thermoelectric element has a first substrate at a high temperature side, a second substrate at a low temperature side facing the first substrate, a thermoelectric material placed on the second...
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8258672 |
Composite structure gap-diode thermopower generator or heat pump
A thermionic or thermotunneling generator or heat pump is disclosed, comprising electrodes substantially facing one another and separated by spacers disposed between the electrodes, wherein the...
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8242662 |
Special thermo magnetic motor device
A special thermo magnetic motor which is an electromagnetic heat engine used for directly converting power between heat and electrical forms using magnetism. It is comprised of a unique combination...
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8237324 |
Bistable electroactive polymers
A bistable electroactive polymer transducer is provided for electrically actuated deformation of rigid electroactive polymer members. The polymers have glass transition temperatures (Tg) above...
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8234951 |
Bistable aerial platform
A bistable MEMS platform. The bistable MEMS platform converts a rotational input into an ortho-planar displacement and can maintain either it's up or down position without an input force due to...
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8227681 |
Active material apparatus with activating thermoelectric device thereon and method of fabrication
An active material assembly is provided having a thermally-activated active material apparatus with an elongated, non-planar shape and a thermoelectric device in thermal contact therewith. The...
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8220259 |
Shape-memory alloy actuator
An actuator includes a shape memory element formed from a shape memory alloy. The shape memory element is configured such that the actuator is actuated by a change in shape of the shape memory...
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8183736 |
Device and method for converting energy
A device for transforming thermal energy to electric energy including a magnetic circuit including at least a portion made of a magnetic material, a temperature-varying device for varying the...
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8174245 |
Device and method for converting thermal energy into electrical energy
A device and method for using a field-responsive material that changes temperature when subjected to a respective field in combination with a thermal to electrical energy converter to accomplish...
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8159108 |
Integrated thermoelectric/ thermionic energy converter
A device for converting heat into electrical energy that is an integrated combination of thermionic and thermoelectric energy converters in a single device, or “TITE”. The electron output of the...
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8159107 |
Micro rotary machine and methods for using same
A micro rotary machine may include a micro actuator and a micro shaft coupled to the micro actuator. The micro shaft comprises a horizontal shaft and is operable to be rotated by the micro...
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8134276 |
Methods and systems for positioning micro elements
A micro device may comprise a substrate, a first micro structure coupled to the substrate, a second micro structure coupled to the substrate, and port configured to receive an input. The first...
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8129882 |
Thermoelectric generator and method of generating electricity
A generator device for converting thermal energy to electric energy. A magnetic circuit includes at least a portion made of a magnetic material. A temperature-varying device varied the temperature...
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8115579 |
MEMS actuators with stress releasing design
The micro-electromechanical (MEMS) actuator comprises a hot arm member and a cold arm member. The cold arm member comprises at least two longitudinally spaced-apart flexors. The actuators may also...
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8102096 |
Closely spaced electrodes with a uniform gap
An improved design for maintaining separation between electrodes in tunneling, resonant tunneling, diode, thermionic, thermo-photovoltaic and other devices is disclosed. At least one electrode 1 is...
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8072117 |
Thermal-mechanical signal processing
A source signal is converted into a time-variant temperature field with transduction into mechanical motion. In one embodiment, the conversion of a source signal into the time-variant temperature...
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8065877 |
Solar energy converting device and power supply system including the same
A solar energy converting device includes a frame, a container, a thermal expansion member, a connecting rod, an inductor and magnetic members. The frame defines an opening. The container is...
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8053947 |
Device for converting thermal energy into electrical energy
A current source and method of producing the current source are provided. The current source includes a metal source, a buffer layer, a filter and a collector. An electrical connection is provided...
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8046994 |
Precision method and apparatus for controlling the shape memory alloy
The invention discloses a method and apparatus to control the shaping change of Shape-Memory-Alloy (SMA). The piece-wised current drain control device is designed to independently deliver current...
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8035274 |
Apparatus and method for ferroelectric conversion of heat to electrical energy
The present invention relates to a new method and apparatus for converting heat to electric energy. The invention exploits the rapid changes in spontaneous polarization that occur in ferroelectric...
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8018117 |
Closely spaced electrodes with a uniform gap
An improved design for maintaining separation between electrodes in tunneling, diode, thermionic, thermophotovoltaic and other devices is disclosed. At least one electrode is made from flexible...
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7982360 |
Apparatus and method for ferroelectric conversion of heat to electrical energy
The present invention relates to a new method and apparatus for converting heat to electric energy. The invention exploits the rapid changes in spontaneous polarization that occur in ferroelectric...
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7975477 |
Driving device and method of manufacturing the same
A driving device and driving device manufacturing method that ensure stable fixing of an SMA, without causing difficulties in downsizing the device, and without adversely affecting the performance...
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7972865 |
Sensor for detecting and differentiating chemical analytes
A sensor for detecting and differentiating chemical analytes includes a microscale body having a first end and a second end and a surface between the ends for adsorbing a chemical analyte. The...
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7969062 |
Energy converting apparatus, generator and heat pump provided therewith and method of production thereof
A high-efficiency thermionic energy converter comprises a multilayer vacuum diode, the layers of which are very thin and the intermediate spaces between the layers are several nanometers thick. The...
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7928630 |
Monolithic thermionic converter
A thermionic converter is disclosed comprising a single or multiple hot (emitter) and cold (collector) electrodes mounted side-by-side on a single substrate and a static electrostatic field for...
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7919709 |
Temperature power generation device and temperature power generation method
A temperature power generation device includes a temperature reactive layer made of high thermal energy absorbing material and a thermal electron generation layer made of low work function...
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7919901 |
Low-voltage, large displacement stepping actuator and method for fabricating the same
The current invention provides a stepping actuator, achieving large range up to ±35 μm with low operating voltages of 15V or lower and large output forces of up to ±110 μN. The actuator has an in-...
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7908856 |
In-line stirling energy system
A high efficiency generator is provided using a Stirling engine to amplify an acoustic wave by heating the gas in the engine in a forward mode. The engine is coupled to an alternator to convert...
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7906887 |
Microsystem and method for positioning a second element with respect to a first element in a microsystem
A microsystem, comprising a first static element (1), a second, movable and unattached element (2), an actuator (3) for effecting a force between the first and the second element (1, 2), which...
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7882701 |
Microfabricated mechanical frequency multiplier
A high-bandwidth MEMS actuation system includes actuator pairs coupled in parallel to a stage, each actuator energizable in a drive direction against a bias to an energized position, and movable...
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7880079 |
Dual gap thermo-tunneling apparatus and methods
Method and apparatus for improved thermal isolation for thermoelectric devices are disclosed. In one embodiment, a thermoelectric device includes a first substrate portion having a first p-type...
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7872432 |
MEMS thermal device with slideably engaged tether and method of manufacture
A MEMS thermal switch is disclosed which couples a hot, expanding beam to a cool flexor beam using a slideably engaged tether, and bends the cool, flexor beam by the expansion of the hot beam. A...
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7859154 |
Thermally operated rotatable component restraint system
A turboalternator system includes a turboalternator having a rotatable member operatively engaged to a bearing set, a radial support element, and a contact structure engaged with the radial support...
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7816601 |
Device and method for converting thermal energy into electrical energy
A device and method for using a field-responsive material that changes temperature when subjected to a respective field in combination with a thermal to electrical energy converter to accomplish...
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7812502 |
Shell type actuator
A micromechanical resonator is formed on a substrate. The resonator has a partial spherical shell clamped on an outside portion of the shell to the substrate. In other embodiments, a flat disc or...
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7800278 |
Energy harvesting by means of thermo-mechanical device utilizing bistable ferromagnets
An inventive energy harvesting apparatus may include a ferromagnetic material and/or a shape memory alloys to convert thermal energy to mechanical energy to electrical energy. The apparatus is...
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7800279 |
Thermo-buckled micro actuation unit made of polymer of high thermal expansion coefficient
Disclosed is a thermo-buckled micro actuation unit made of parylene, which is a polymer having high thermal expansion coefficient, for delivering liquid from a source liquid section to a target...
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7796847 |
Electrical stimuli of MEMS devices
Methods for applying electrical stimuli to optical micro-electro-mechanical system (MEMS) devices are disclosed. Electrical stimuli may be applied to one or more released current carrying elements...
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