Patent application number | Description | Published |
20090009301 | Tactile feedback device - The present invention discloses a tactile feedback device for giving realistic touch sensation to the user by stimulating the skin of the user. The tactile feedback device of the present invention comprises a housing having one end positioned near the skin of the user in use, an actuator, touch pins and an elastic means. The actuator is mounted inside the housing to convert electromagnetic energy into kinetic energy. The touch pins are mounted inside the housing so as to pop in and out, and the front end thereof is popped out of one end of the housing to contact the skin, and is connected with the actuator so as to be operated by kinetic energy of the actuator. The elastic plates of the elastic means are mounted between one end of the housing and the actuator, and have the touch pins fixedly passing through so as to be interlocked with the touch pins, and when the touch pins pop in and out, they are elastically deformed to have elastic energy. According to the present invention, the touch pins stimulate the skin of the user by dint of an interlocking structure of the actuator that converts electromagnetic energy into kinetic energy and the elastic means, so it is possible to implement realistic touch sensation. | 01-08-2009 |
20090079298 | MULTI-CANTILEVER MEMS SENSOR, MANUFACTURING METHOD THEREOF, SOUND SOURCE LOCALIZATION APPARATUS USING THE MULTI-CANTILEVER MEMS SENSOR, SOUND SOURCE LOCALIZATION METHOD USING THE SOUND SOURCE LOCALIZATION APPARATUS - Disclosed herein is a multi-cantilever MEMS sensor functioning as a mechanical sensor having a plurality of cantilevers, replacing a conventional DSP based sound source localization algorithm and reducing production cost when the MEMES sensor applied to mass-produced robots, a manufacturing method thereof, a sound source localization apparatus using the multi-cantilever MEMS sensor and a sound source localization method using the sound source localization apparatus. The multi-cantilever MEMS sensor comprises a plurality of cantilevers | 03-26-2009 |
20090096651 | ANALOG-TO-DIGITAL (AD) CONVERTER USING RESONANCE FREQUENCY SHIFTING AND VOLTAGE DETECTING DEVICE THEREOF - An analog-to-digital (AD) converter and a voltage detecting device thereof are provided. The AD converter includes at least one voltage detecting device which outputs a signal of a frequency determined based on a magnitude of an input voltage using a resonance frequency of a resonator. The AD converter determines a digital output value depending on the output signal from the voltage detecting device. Therefore, the AD converter can achieve a high resolution and a high speed with far less power consumption. | 04-16-2009 |
20090096652 | ANALOG-TO-DIGITAL CONVERTER (ADC) USING TUNNELING EFFECT OF PROBES - An analog-to-digital converter (ADC) is provided to determine a digital output value according to whether electric current flows between a plurality of probes, to which an input voltage is applied, and a plurality of electrodes. Therefore, high resolution and high speed operation is possible, but with lower power consumption. | 04-16-2009 |
20090096655 | ANALOG TO DIGITAL CONVERTER WHICH USES TUNNELING MAGNETO-RESISTIVE DEVICES - An A/D converter is provided. The A/D converter determines a digital output value according to the resistance of the TMR device, resistance of which changes according to the magnetic field generated by at least one electrode into which current flows according to an analog input signal. Accordingly, an A/D converter to implement high resolution and high speed with low power consumption can be provided. | 04-16-2009 |
20100262081 | MICRONEEDLE ROLLER AND STAMP ADAPTED TO ENABLE THE REPLACEMENT OF MICRONEEDLES - A microneedle-replaceable roller and stamp comprises a main body having a handle portion and a microneedle plate or sheet that is detachably mounted to the main body. According to the roller and stamp, inexpensive and sanitary application can be ensured. | 10-14-2010 |
20100274203 | CONTAINER FOR TRANSDERMAL DELIVERY OF ACTIVE AGENT USING MICRONEEDLES - A container for transdermal delivery of an active agent or agents using microneedles includes a reservoir adapted to receive a substance containing an active agent or agents; and a cover member adapted to cover an entrance of the reservoir, the cover member comprising one or more through-holes formed therein and one or more microneedles formed thereon. With the container, transdermal delivery can be made conveniently, easily, and effectively. | 10-28-2010 |
20110021996 | STRUCTURE OF MICRO-NEEDLE WITH SIDE CHANNEL AND MANUFACTURING METHOD THEREOF - The present invention relates to a microneedle for delivering active agent or agents. The microneedle comprises a body a body having a base at one end thereof and a tip portion at the other end thereof; a pair of projections connected to a side of the body and having a base at one end thereof and a tip portion at the other end thereof; and a vertical groove defined by the body and the pair of projections. The distance between outer edges of the pair of projections is formed to become smaller towards the tip portion than the distance between outer edges of the body, and the upper end of each of the pair of projections is shorter than that of the body such that a free space is formed between the outer edges of the body and the pair of projections. | 01-27-2011 |
20110040317 | LANCET BLOCK AND LANCET ACTIVATING DEVICE - A lancet block comprises a lancet comprising a cam projection and a lancet housing receiving the lancet in such a fashion that the lancet can be vertically moved relatively with respect to the lancet housing. A top wall of the lancet housing and a side wall of the lancet housing corresponding to the cam projection of the lancet are formed of a thin membrane made of a material capable of being easily disrupted and a bottom wall of the lancet housing is formed of a thin membrane made of a material capable of being easily disrupted by a tip of the needle of the lancet. With this lancet block, it is possible to, e.g., provide convenient and sanitary use of a lancet, avoid a risk of any injury by a needle tip, prevent bacterial infection due to such injury, and reduce manufacturing costs. | 02-17-2011 |
20110046557 | MICRONEEDLE DRUG DELIVERY SYSTEM INCLUDING MOVABLE DRUG-CONTAINING CAPSULE - A microneedle drug delivery system comprises: a housing having an opening formed in the bottom wall thereof; a microneedle device seated in the opening of the housing in such a fashion as to be hermetically sealed with the bottom wall of the housing; a drug-containing capsule mounted in the housing | 02-24-2011 |
20110089396 | FIELD EMISSION ARRAY HAVING CARBON MICROSTRUCTURE AND METHOD OF MANUFACTURING THE SAME - Provided is a method for manufacturing a field emission array with a carbon microstructure. The method includes: a photomask attachment step of attaching a photomask with a pattern groove to one surface of a transparent substrate; a photoresist attachment step of attaching a negative photoresist to one surface of the photomask; an exposure step of irradiating light toward the opposite surface of the transparent substrate from the photomask to cure a portion of the negative photoresist with the light irradiated on the negative photoresist through the pattern groove; a developing step of removing an uncured portion of the negative photoresist while leaving the cured portion of the negative photoresist as a microstructure; a pyrolysis step of heating and carbonizing the microstructure thus obtained; and a cathode attachment step of attaching a voltage-supplying cathode to the surface of the transparent substrate on which the microstructure is formed. | 04-21-2011 |
20110133360 | MOLDING METHOD - A molding method may include forming a pattern on a surface of a substrate, the pattern and the surface of the substrate having an opposite polarity to each other, providing the substrate on which the pattern is formed with a liquid to form a liquid mold on either the surface of the substrate or the pattern, the liquid having a polarity identical to the polarity of the surface of the substrate or the polarity of the pattern and cooling the liquid mold at a temperature below a freezing point of the liquid to form a solid mold. | 06-09-2011 |
20120001870 | PIEZORESISTIVE DEVICE, METHOD OF MANUFACTURING THE SAME AND PIEZORESISTIVE-TYPE TOUCH PANEL HAVING THE SAME - A method of manufacturing a piezoresistive device includes the steps of: producing a polymer structure with an elastically deformable upper surface by processing a polymer material; applying a carbon nanotube solution on the upper surface of the polymer structure in conformity with a predetermined pattern; and drying the carbon nanotube solution to form a carbon nanotube pattern on the upper surface of the polymer structure. A piezoresistive device manufactured by the above method and a piezoresistive-type touch panel provided with the piezoresistive device are also provided. | 01-05-2012 |
20140234585 | FOOD PACKAGING MATERIAL HAVING UNIFORM COATING OF OIL, METHOD OF MANUFACTURING THE SAME, MOLD FOR MANUFACTURING THE SAME - The present invention relates to a food packaging material for packing food, more particularly to a food packaging material having a uniform coating of oil, a method of manufacturing the same, and a mold for manufacturing the same. The food packaging material includes a plurality of grooves formed on one surface of the food packaging material; and an oil layer uniformly applied to the one surface of the food packaging material, being put into the grooves. According to the present invention, there are provided a food packaging material which continuously maintains a uniform coating of oil and thus minimizes sticking of contents to a surface of the packaging material, a method of manufacturing the same, and a mold for manufacturing the same. | 08-21-2014 |