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| 20080291521 | REFLECTIVE UNIT USING ELECTROACTIVE POLYMER AND FLEXIBLE DISPLAY EMPLOYING THE REFLECTIVE UNIT - Provided are a reflective unit using an electroactive polymer and a flexible display. The reflective unit includes: an electroactive polymer layer which becomes strained when a voltage is applied thereto by an electrode; a light reflecting unit reflecting external light and having reflecting cells arranged on the electroactive polymer layer to be spaced apart from one another wherein a distance between the reflecting cells is changed according to the strain of the electroactive polymer layer; and a light blocking layer preventing external light from being reflected by the light reflecting unit and having blocking cells arranged over the light reflecting unit to be spaced apart from one another. | 11-27-2008 |
| 20080291525 | DISPLAY PIXEL USING ELECTROACTIVE POLYMER AND DISPLAY APPARATUS EMPLOYING THE SAME - Provided are a display pixel using an electroactive polymer and a display apparatus employing the display pixel. The display pixel includes: an electroactive polymer layer, of which shape and/or size is displaced when a voltage is applied thereto; a diffraction grating, of which a pitch and a diffraction angle change according to a displacement of the electroactive polymer layer; and a liquid crystal layer disposed on the diffraction grating and controlling gradation according to a voltage applied thereto. | 11-27-2008 |
| 20080309857 | METHOD OF ADJUSTING PHOTONIC BANDGAP OF PHOTONIC CRYSTAL, METHOD OF MANUFACTURING REFLECTIVE COLOR FILTER USING THE SAME, AND DISPLAY DEVICE INCLUDING THE REFLECTIVE COLOR FILTER - Provided are a method of adjusting a photonic bandgap of a photonic crystal, a method of manufacturing a reflective color filter using the same, and a display device including the reflective color filter. The method of adjusting a photonic bandgap of a photonic crystal includes forming the photonic crystal having a photonic bandgap on a substrate, and changing the photonic bandgap by irradiating light onto the photonic crystal. In addition, the display device includes a backlight, a transflective liquid crystal panel including liquid crystal cells sealed between first and second substrates. Each liquid crystal cell corresponding to a pixel includes a transmissive area and a reflective area. A transmissive color filter is formed on the first substrate, which faces the backlight, and a reflective color filter is formed on each reflective area. | 12-18-2008 |
| 20090046367 | REFLECTIVE PLATE, DISPLAY HAVING THE SAME, AND METHOD OF CONTROLLING DISTRIBUTION OF REFLECTED LIGHT - Provided are a reflective plate and a display, and a method of controlling a distribution of reflected light. The reflective plate includes a plurality of diffracting grating cells including gratings reflecting incident light, wherein the gratings are arranged at predetermined intervals, and at least one of an arrangement period and an arrangement direction of each of the gratings of the plurality of diffracting grating cells is adjusted to limit a distribution of reflected light. | 02-19-2009 |
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| 20090168504 | Phase change memory apparatus having an improved cycling endurance and programing method therefor - A phase change memory apparatus includes a phase change memory array in which a plurality of phase change memory devices are arranged, and a pulse generator that supplies a writing current pulse, an erasure current pulse, and a reverse repair current pulse to the phase change memory devices in the phase change memory array. The reverse repair current pulse has opposite direction to the writing current pulse and the erasure current pulse of the phase change memory devices, and is of such a size that resultant Joule heat and electromigration move the elements of the reverse repair current pulse. The reverse repair current pulse has a width equal to or more than a smaller one of duration of a normal writing operation and duration of a normal erasure operation. | 07-02-2009 |
| 20090245079 | OPTICAL RECORDING MEDIUM HAVING SUPER-RESOLUTION STRUCTURE FOR IMPROVEMENT OF REPRODUCING STABILITY AND NOISE CHARACTERISTIC IN LOW FREQUENCY BAND - A super-resolution optical recording medium includes a reflective layer formed on a substrate, a recording layer for recording information thereon, a super-resolution layer made of a chalcogenide semiconductor material, and a first and a second dielectric layers laminated on upper and lower surfaces of the super-resolution layer. The recording layer is made of a material that has a decomposition temperature higher than an information reproduction temperature and does not form bubble recording marks during recording, and the super-resolution layer contains one or more elements selected from the group consisting of nitrogen, oxygen, carbon, and boron. | 10-01-2009 |
| 20100128273 | HIGH RESOLUTION SURFACE PLASMON RESONANCE SENSOR AND SENSOR SYSTEM THEREOF - Provided is a surface plasmon resonance sensor including: a part of delivering light by which a signal beam is incident to generate an evanescent field; and a part of exciting surface plasmon for exciting surface plasmons by the generated evanescent field and giving rise to a surface plasmon resonance, wherein a dielectric waveguide layer is inserted between metal layers of the part of exciting surface plasmon, and surface plasmon resonance properties are changed by an object to be analyzed. | 05-27-2010 |
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| 20090325979 | NOVEL IMIDAZOLYLALKYLCARBONYL DERIVATIVES AS CALCIUM CHANNEL MODULATORS AND PREPARATION METHOD THEREOF - Disclosed are novel imidazolylalkylcarbonyl derivatives useful as calcium channel modulators and a preparation method of the same. Also disclosed is a method for the treatment of diseases by administering the above compounds based on their inhibitory activity against calcium channel. | 12-31-2009 |
| 20100004286 | NOVEL ISOINDOLINONE DERIVATIVES HAVING INHIBITORY ACTIVITY AGAINST T-TYPE CALCIUM CHANNEL AND METHOD FOR PREPARATION THEREOF - Disclosed are isoindolinone derivatives, represented by Chemical Formula 1, having inhibitory activity against T-type calcium channels, pharmaceutically acceptable salts thereof, a preparation method thereof, and a pharmaceutical composition comprising the same as an active ingredient. | 01-07-2010 |
| 20100094006 | NOVEL PYRAZOLYLMETHYLAMINE COMPOUNDS AS CALCIUM CHANNEL MODULATORS AND PREPARATION METHOD THEREOF - The present invention relates to pyrazolylmethylamine-piperazine derivatives and their pharmaceutically acceptable salts effective as calcium channel modulators and a method of manufacturing the same. The present invention also relates to the medicinal use of the above compounds as therapeutic treatment of diseases due to their effect as calcium channel modulators. | 04-15-2010 |
| 20110319456 | BENZOARYLUREIDO COMPOUNDS, AND COMPOSITION FOR PREVENTION OR TREATMENT OF NEURODEGENERATIVE BRAIN DISEASE CONTAINING THE SAME - Novel benzoarylureido compounds and a use thereof for prevention and/or treatment of the neurodegenerative brain disease are provided. The neurodegenerative brain diseases may include Alzheimer's disease, dementia, Parkinson's disease, stroke, amyloidosis, Pick's disease, Lou Gehrig's disease, Huntington's disease, Creutzfeld-Jakob disease, and the like. | 12-29-2011 |
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| 20080298688 | Method of classifying colors of color based image code - Provided is a method of classifying colors of a color based image code. The colors of each cell forming the color based image code are classified by sampling a predetermined number of pixels from each cell and then applying a max channel based clustering method, a white balance based color clustering method, a single-linkage algorithm based color classification method, a K-means algorithm based color classification method, or the like. Accordingly, the colors of an image code can be accurately recognized despite of a color distortion due to characteristics of a camera, a printing medium, etc. | 12-04-2008 |
| 20100246984 | Animated Image Code, Apparatus for Generating/Decoding Animated Image Code, and Method Thereof - Provided is an apparatus for generating/decoding an animated image code, and a method thereof. The animated image code frame includes an image code frame which is divided into code cells expressing minimum unit data, and in which the minimum unit data is expressed in an area located inside the code cells and is formed by combining one or more color, gradation, and patterns; and a design layer which is formed by combining color or gradation used in the image code frame and color or gradation distinguishable on the basis of a threshold value, and which is displayed by overlapping the frame image. Accordingly, by utilizing changes in respective animated frames, an animated image code can be generated and decoded in which motion can be expressed by using a display medium. | 09-30-2010 |
| 20110110605 | METHOD FOR GENERATING AND REFERENCING PANORAMIC IMAGE AND MOBILE TERMINAL USING THE SAME - A method for generating a panoramic image is provided. The method includes photographing a plurality of images, obtaining contextual information with respect to each of the plurality of photographed images, and generating the plurality of photographed images as one panoramic image based on the obtained contextual information. | 05-12-2011 |
| 20110113366 | APPARATUS AND METHOD FOR PROCESSING DATA IN TERMINAL HAVING TOUCH SCREEN - An apparatus and a method for processing data of a terminal are provided. The method includes displaying a feature point extracting method selection window for selecting a feature point extracting method for extracting feature point information which specify data according to displayed data, in a Data save mode which saves at least one data displayed on one screen, extracting the feature point information according to the data by using the feature point extracting method selected through the feature point extracting method selection window, and saving at least one feature point information extracted according to the data as group feature point information. | 05-12-2011 |
| 20110285862 | METHOD AND APPARATUS FOR PROVIDING WEB CAMERA SERVICE IN A PORTABLE TERMINAL - A method and apparatus for providing a Web camera service in a portable terminal are provided. A method for providing a Web camera service in a portable terminal preferably includes detecting connection with an external device, entering a Web camera mode, setting the kind (type) of an image to be transmitted to the connected external device, and transmitting, to the external device, at least one of a camera image and an image for storage contents according to the set kind. | 11-24-2011 |
| 20110298940 | METHOD AND APPARATUS FOR OPERATING CAMERA FUNCTION IN PORTABLE TERMINAL - A method and an apparatus for operating a camera function in a portable terminal are provided. State information representing at least one of a direction and a rotation state of the portable terminal is obtained, and at least one of a sequence of reading an image from a camera sensor and an appropriate user interface is determined depending on the state information. Thus, the camera function is performed depending on the determined sequence or user interface. | 12-08-2011 |
| 20110316970 | METHOD FOR GENERATING AND REFERENCING PANORAMIC IMAGE AND MOBILE TERMINAL USING THE SAME - A method for generating a panoramic image is provided. The method includes photographing a plurality of images, obtaining contextual information with respect to each of the plurality of photographed images, and generating the plurality of photographed images as one panoramic image based on the obtained contextual information. | 12-29-2011 |
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| 20100051099 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A method of manufacturing a solar cell includes forming jagged portions non-uniformly on a surface of a substrate, forming a first type semiconductor and a second type semiconductor in the substrate, forming a first electrode to contact the first type semiconductor, and forming a second electrode to contact the second type semiconductor. An etchant used in a wet etching process in manufacturing the solar cell includes about 0.5 wt % to 10 wt % of HF, about 30 wt % to 60 wt % of HNO | 03-04-2010 |
| 20100108129 | SILICON SOLAR CELL AND METHOD OF MANUFACTURING THE SAME - A silicon solar cell and a method of manufacturing the same are disclosed. The silicon solar cell includes a silicon semiconductor substrate doped with first conductive impurities, an emitter layer doped with second conductive impurities having polarities opposite polarities of the first conductive impurities on the substrate, an anti-reflective layer on an entire surface of the substrate, an upper electrode that passes through the anti-reflective layer and is connected to the emitter layer, and a lower electrode connected to a lower portion of the substrate. The emitter layer includes a first emitter layer heavily doped with the second conductive impurities and a second emitter layer lightly doped with the second conductive impurities. A surface resistance of the second emitter layer is 100 Ohm/sq to 120 Ohm/sq. | 05-06-2010 |
| 20100248408 | METHOD OF TEXTURING SOLAR CELL AND METHOD OF MANUFACTURING SOLAR CELL - Methods of texturing and manufacturing a solar cell are provided. The method of texturing the solar includes texturing a surface of a substrate of the solar cell using a wet etchant, and the wet etchant includes a surfactant. | 09-30-2010 |
| 20110027933 | METHOD OF TEXTURING SOLAR CELL AND METHOD OF MANUFACTURING SOLAR CELL - Methods of texturing and manufacturing a solar cell are provided. The method of texturing the solar includes texturing a surface of a substrate of the solar cell using a wet etchant, and the wet etchant includes a surfactant. | 02-03-2011 |
| 20110094586 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell and a method for manufacturing the same are discussed. The solar cell includes a substrate of a first conductive type, an emitter portion that has a second conductive type opposite the first conductive type and forms a p-n junction along with the substrate, a first anti-reflection layer that is positioned on the emitter portion and has a thickness of about 5 nm to 35 nm, a second anti-reflection layer positioned on the first anti-reflection layer, a first electrode electrically connected to the emitter portion, and a second electrode electrically connected to the substrate. | 04-28-2011 |
| 20110308601 | SOLAR CELL - A solar cell and a method for manufacturing the same are discussed. The solar cell includes a substrate of a first conductive type, an emitter layer of a second conductive type opposite the first conductive type, a plurality of first electrodes connected to the emitter layer, at least one first current collector connected to the plurality of first electrodes, and a second electrode connected to the substrate. The emitter layer forms a p-n junction along with the substrate. Each of the plurality of first electrodes has a multi-layered structure, and the at least one first current collector has a single-layered structure. | 12-22-2011 |
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| 20090017394 | Hollow toner and process of preparing the same - Hollow toner and a process of preparing the same are provided. The hollow toner has a hollow sphere shape, wherein an outer layer surrounding the hollow sphere includes a polymer, a wax and a pigment. The hollow toner has excellent fixing properties under low energy and low pressure, and can be efficiently used at high-speed fixing. Also, a small amount of the hollow toner is consumed. Thus, the hollow toner can be efficiently applied to various apparatuses of forming an image such as a two-component low-temperature printer and super high-speed printer, and the hollow toner can be prepared by using a relatively simple process. | 01-15-2009 |
| 20090053630 | METHOD OF PREPARING TONER AND TONER PREPARED USING THE METHOD - A method of preparing toner, the method including: preparing latex particles for a core which contain wax by polymerizing a toner composition comprising at least one polymerizable monomer and a macromonomer having a hydrophilic group, a hydrophobic group, and at least one reactive functional group; mixing the latex particles for a core with a self-dispersable pigment dispersion and adding an inorganic salt thereto to prepare a primarily agglomerated toner; and coating latex particles for a shell layer on the primarily agglomerated toner. In addition, a toner prepared using the preparation method, a method of forming image using the toner, and an image forming apparatus using the toner. Accordingly, pigments can be uniformly dispersed even without using an emulsifying agent and a dispersant, and thus images that are uniformly transferred can be obtained, and toner with long-term storage and excellent durability can be prepared. | 02-26-2009 |
| 20090053642 | TONER, METHOD OF FORMING IMAGES USING THE TONER AND IMAGE FORMING DEVICE USING THE TONER - A toner having a cohesion level of 50 or less when measured using an ASTM D 6393-99 includes a first agglomerated toner including latex particles for a core, a pigment and an inorganic salt, and latex particles for a shell layer coated on the first agglomerated toner, wherein the latex particles for the core and the latex particles for the shell layer are prepared by polymerizing a composition including an amphiphilic monomer having a hydrophilic group, a hydrophobic group and at least one reactive functional group, and a polymerizable monomer. | 02-26-2009 |
| 20090061334 | TONER, METHOD OF PREPARING TONER, METHOD OF FORMING IMAGE USING THE TONER, AND IMAGE FORMING APPARATUS EMPLOYING THE TONER - A toner and a method of preparing the toner, the method including: preparing first latex particles by polymerizing a toner composition including a macromonomer having a hydrophilic group, a hydrophobic group, and at least one reactive functional group; at least one polymerizable monomer; and a wax; preparing a first agglomerated toner by mixing the first latex particles with a pigment dispersion dispersed by the macromonomer and adding an inorganic salt to the mixture; and coating second latex particles which are prepared by polymerizing a composition for the second latex particles including at least one polymerizable monomer and a cross-linkable monomer on the first agglomerated toner, a method of forming an image using the toner, and an image forming apparatus employing the toner. | 03-05-2009 |
| 20100159379 | TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE AND METHOD OF PREPARING THE SAME - Disclosed are a toner for developing an electrostatic latent image and a method of preparing the same. The toner may include latex, a pigment and a releasing agent. The lowest crossover temperature of the toner at which the storage modulus (G′) and the loss modulus (G″) of the toner are substantially equal to each other may be in the range of about 65 to about 80° C. The weight average molecular weight (Mw) of the toner may be in the range of about 65,000 to about 75,000. The z-average molecular weight (Mz) of the toner may be in the range of about 110,000 to about 220,000. | 06-24-2010 |
| 20100178605 | TONER TO DEVELOP AN ELECTROSTATIC LATENT IMAGE AND METHOD OF PREPARING THE SAME - A toner to develop an electrostatic latent image which includes a latex, a colorant, and a release agent, wherein the toner has a complex viscosity (η*) in a range of about 2.5×10 | 07-15-2010 |
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| 20090172705 | Apparatus and Method for Preservation of USB Keyboard - Provided are a data security apparatus and method for a USB keyboard. The data security apparatus includes: a USB keyboard security driver for selecting a driver for a USB keyboard from USB devices connected to a personal computer, and replacing a data processing function address in a USB hub driver with a function address of the selected USB keyboard driver to acquire input data input by the USB keyboard; a USB keyboard data processing module for preferentially receiving the input data acquired from the USB keyboard security driver, and processing the input data through analysis, encoding and deletion processes; and a USB keyboard data transfer module for decoding the input data processed by the USB keyboard USB keyboard data processing module and outputting the decoded input data to a user's desired location. Thus, data input by a malicious program from a keyboard in communication with a main body of a personal computer (PC) through USB to transmit data can be protected from being transmitted to the external. | 07-02-2009 |
| 20090313403 | Method of securing USB keyboard - Provided is a method of securing a Universal Serial Bus (USE) keyboard. According to the method, a keyboard security operation is performed at a host controller driver level, which is one level lower than a USE hub driver level. Thus, it is possible to rapidly and effectively prevent a malicious program from leaking information input from a keyboard that is in communication with a main frame and transfers data via a USB. | 12-17-2009 |
| 20100138918 | Keyboard Security Status Check Module and Method - A keyboard security status check module and method are provided. The module is provided to enable a user to easily check the operating status of a keyboard security program installed in a user terminal. The module includes a keyboard security monitor linked to the keyboard security program and configured to monitor a reception status of key input data protected by keyboard security, and a controller configured to display a dynamic keyboard security check representation on a screen of the user terminal according to the reception status of the key input data monitored by the keyboard security monitor. | 06-03-2010 |
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| 20080214012 | Apparatus and method for fabricating semiconductor devices and substrates - An apparatus and method for fabricating semiconductor devices may increase reliability of the semiconductor devices by decreasing generation of particles and enhancing operation efficiency by decreasing the number of cleanings. The apparatus may include a chamber having a cover plate, susceptors for securely placing semiconductor substrates within the chamber, shower heads located on the cover plate to supply reaction gases into the chamber, and a curtain gas line connected to the cover plate to supply heated curtain gases between the shower heads. | 09-04-2008 |
| 20090189229 | Semiconductor devices and methods of fabricating the same - Provided are semiconductor devices and methods of fabricating the same, and more specifically, semiconductor devices having a W—Ni alloy thin layer that has a low resistance, and methods of fabricating the same. The semiconductor devices include the W—Ni alloy thin layer. The weight of Ni in the W—Ni alloy thin layer may be in a range from approximately 0.01 to approximately 5.0 wt % of the total weight of the W—Ni alloy thin layer. | 07-30-2009 |
| 20090267132 | GATE STRUCTURES IN SEMICONDUCTOR DEVICES - A gate structure includes an insulation layer on a substrate, a first conductive layer pattern on the insulation layer, a metal ohmic layer pattern on the first conductive layer pattern, a diffusion preventing layer pattern on the metal ohmic layer pattern, an amorphous layer pattern on the diffusion preventing layer pattern, and a second conductive layer pattern on the amorphous layer pattern. The gate structure may have a low sheet resistance and desired thermal stability. | 10-29-2009 |
| 20090315091 | GATE STRUCTURE, AND SEMICONDUCTOR DEVICE HAVING A GATE STRUCTURE - A gate structure can include a polysilicon layer, a metal layer on the polysilicon layer, a metal silicide nitride layer on the metal layer and a silicon nitride mask on the metal silicide nitride layer | 12-24-2009 |
| 20100197103 | METHOD OF FABRICATING SEMICONDUCTOR DEVICE - A method of fabricating a semiconductor device can include forming gate structures for transistors on a semiconductor substrate in a cell region and in a peripheral circuit region, forming an offset spacer of a first material on the gate structure, performing first ion implantation for source/drain region formation using the gate structures and the offset spacer as an ion implantation mask, forming a material layer of a second material on the semiconductor substrate and the gate structures, forming a material layer of a third material, which has an etch selectivity with respect to the second material, on the material layer made of the second material, etching-back the material layer made of the third material using the material layer made of the second material as an etch stop layer to form a multi-layered spacer comprising the second material and the third material, performing second ion implantation for source/drain region formation using the gate structures and the multi-layered spacer as an ion implantation mask, and removing the material layer of the third material. | 08-05-2010 |
| 20100210105 | METHOD OF FABRICATING SEMICONDUCTOR DEVICE HAVING BURIED WIRING - A method of fabricating a semiconductor device can include forming a trench in a semiconductor substrate, forming a first conductive layer on a bottom surface and side surfaces of the trench, and selectively forming a second conductive layer on the first conductive layer to be buried in the trench. The second conductive layer may be formed selectively on the first conductive layer by using an electroless plating method or using a metal organic chemical vapor deposition (MOCVD) or an atomic layer deposition (ALD) method. | 08-19-2010 |
| 20110171818 | METHODS OF FORMING A GATE STRUCTURE - A method of forming a gate structure can be provided by forming a tunnel insulation layer on a substrate and forming a floating gate on the tunnel insulation layer. A dielectric layer pattern can be on the floating gate and a control gate can be formed on the dielectric layer pattern, which can be provided by forming a first conductive layer pattern on the dielectric layer pattern. A metal ohmic layer pattern can be formed on the first conductive layer pattern. A diffusion preventing layer pattern can be formed on the metal ohmic layer pattern. An amorphous layer pattern can be formed on the diffusion preventing layer pattern forming a second conductive layer pattern on the amorphous layer pattern. The floating gate can be further formed by forming an additional first conductive layer pattern on the tunnel insulation layer. An additional metal ohmic layer pattern can be formed on the additional first conductive layer pattern. An additional diffusion preventing layer can be formed pattern on the additional metal ohmic layer pattern. An additional amorphous layer pattern can be formed on the additional diffusion preventing layer pattern and an additional second conductive layer pattern can be formed on the additional amorphous layer pattern. | 07-14-2011 |
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| 20080239933 | WRITABLE OPTICAL INFORMATION RECORDING MEDIUM, APPARATUS FOR REPRODUCING THE SAME, AND METHOD OF DETERMINING THE SAME - A writable optical information recording medium, an apparatus for reproducing the same, and a method of determining the same are provided. The amplitude of a push-pull signal (PPS) of the writable optical information recording medium is determined to be within an amplitude range of a PPS of a reproduction-only optical information recording medium. Accordingly, it is possible to stably reproduce copy protected content by recognizing a loaded writable optical information recording medium as a medium of a reproduction-only type. | 10-02-2008 |
| 20090073851 | APPARATUS AND METHOD FOR RECORDING/REPRODUCING HOLOGRAPHIC DATA AND HOLOGRAPHIC DATA STORAGE MEDIUM - A method and apparatus for recording and/or reproducing holographic data and a holographic information storage medium, wherein the apparatus for recording and/or reproducing holographic information includes an optical pickup emitting light onto a holographic information storage medium and receiving the emitted light. The optical pickup includes: a light source unit emitting a signal beam and a reference beam in a recording mode; and a focusing optical system focusing the signal beam and the reference beam on one focal point in the holographic information storage medium so that information can be recorded by using an interference pattern formed along a depth direction of the holographic information storage medium in the vicinity of the focal point, wherein the numerical aperture of the focusing optical system for the signal beam is different from the numerical aperture of the focusing optical system for the reference beam. | 03-19-2009 |
| 20090153927 | HOLOGRAPHIC DATA STORAGE MEDIUM AND APPARATUS AND METHOD FOR RECORDING/REPRODUCING HOLOGRAPHIC DATA TO/FROM THE SAME - Provided are a holographic data storage medium and an apparatus and method for recording/reproducing holographic data using the same. The holographic data storage medium includes: a substrate; a holographic recording layer disposed on the substrate; and a cover layer covering the holographic recording layer. The holographic recording layer includes: a data recording region including a plurality of data layers to which data is recorded, the data recording region in which interference fringes due to first and second beams are formed in different data layers in a depthwise direction; and a layer discrimination region for providing discrimination between the data layers. | 06-18-2009 |
| 20090323150 | ACTUATOR FOR HOLOGRAPHIC INFORMATION STORING APPARATUS - An actuator to drive a mirror of a holographic information storing apparatus, the actuator including: piezoelectric cells; support members mounted on the piezoelectric cells; a hinge member mounted on the support member; and a post mounted on the hinge member, to support the mirror. The hinge member includes a bar disposed parallel to a rotation axis of the mirror, and a curved portion that extends from the bar. | 12-31-2009 |
| 20100060966 | ACTUATOR USING PIEZOELECTRIC ELEMENT AND METHOD OF DRIVING THE SAME - An actuator using a piezoelectric element and a method of driving the same. The actuator includes at least one piezoelectric cell moving by displacement according to an input voltage, at least one piezoelectric sensor sensing the displacement of the at least one piezoelectric cell, an error detector detecting an error in the at least one piezoelectric sensor, and a feedback signal generator generating a feedback signal corresponding to the error, thereby performing micromirror driving and sensing. | 03-11-2010 |
| 20120096872 | Refrigerator - A refrigerator includes a main body provided with a storage chamber, a door to open and close the storage chamber, and an ice maker to make ice cubes, wherein the door includes a receiving chamber provided at a front surface of the door to receive the ice maker and an auxiliary door to open and close the receiving chamber. Accordingly, since the receiving chamber may be opened through the auxiliary door without opening of the door, the ice maker may be conveniently cleaned or repaired. | 04-26-2012 |
