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Hyun-Chul Park

Hyun-Chul Park, Gyeonggi-Do KR

Patent application numberDescriptionPublished
20100273524APPARATUS AND METHOD FOR POWER SCANNING IN MOBILE COMMUNICATION TERMINAL WITH DUAL SIM CARD - An apparatus and method for providing a power scanning in a terminal with two or more Radio Frequency (RF) chips are provided. The method includes selecting one RF chip from the two or more RF chips, performing the power scanning on a full band supported by the selected RF chip by using the selected RF chip, gathering a power scanning result obtained by performing the power scanning, and sharing the power scanning result gathered by using the selected RF chip with an unselected RF chip.10-28-2010
20110054684METHOD AND SYSTEM FOR TRANSFERRING/ACQUIRING OPERATION RIGHT OF MOVING ROBOT IN MULTI-OPERATOR MULTI-ROBOT ENVIRONMENT - In an operating system having a first controller configured to manage one or more robots included in a first region, and a second controller configured to manage one or more robots included in a second region adjacent to the first region, a method for enabling the second controller to acquire an operation right of N robots (where N is a natural number equal to or greater than 1) operated by the first controller, the method includes: transmitting a control mapping status (CMS) containing an operation right change message to the first controller, upon reception of an operation right request signal from a user of the N robots; and checking a connection status of the N robots, upon reception of the CMS containing the operation right change message from the first controller, and acquiring an operation right by providing CMS acquisition information and control mapping information to the robots included in the second region.03-03-2011

Hyun-Chul Park, Pohang-Si KR

Patent application numberDescriptionPublished
20100063519SUTURE DEVICE FOR SURGICAL OPERATION - The present invention relates to a suture device for a surgical operation that makes it easy to suture a wound or an incision. A suture device for a surgical operation of the present invention includes: a suture needle that is curved with a needle eye at one end to be threaded with a first suture, and swings at an incision; a holder that supplies a second suture, rotates in one direction, and stops, corresponding to the swing of the suture needle to weave the first suture and the second suture and suture the incision; a first rotary member that is connected to a first shaft of the suture needle; a second rotary member that is connected to a second shaft of the holder; and a third rotary member that is provided between the first rotary member and the second rotary member, and connected to a third shaft to transmit torque to the second rotary member.03-11-2010
20100134948HUMIDITY SENSOR HAVING ANODIC ALUMINUM OXIDE LAYER, AND FABRICATING METHOD THEREOF - Disclosed are a humidity sensor and a fabricating method thereof. The humidity sensor includes a substrate, an anodic aluminum oxide layer formed on the substrate and having a plurality of holes, and electrodes formed on the anodic aluminum oxide layer, in order to improve sensitivity and accuracy of the humidity sensor. Further, the fabricating method of a humidity sensor includes preparing an aluminum substrate, forming an anodic aluminum oxide layer by oxidizing the aluminum substrate, and forming electrodes on the anodic aluminum oxide layer.06-03-2010
20110012285METHOD FOR FABRICATING 3D STRUCTURE HAVING HYDROPHOBIC SURFACE USING METAL FOIL - A method for fabricating a 3D (three-dimensional) structure such that the 3D structure has a surface with hydrophobicity by using a metal foil such as an aluminum foil is disclosed. The method includes preparing a metal foil base by attaching a metal foil on an outer surface of a predetermined-shaped 3D structure; anodizing the metal foil base; coating a polymer material on the outer surface of the metal foil base material to form a negative replica structure; forming an outer structure by covering an outer surface of the negative replica structure with an outer formation material; and removing the metal foil base.01-20-2011
20110042350METHOD FOR FABRICATING 3D STRUCTURE HAVING HYDROPHOBIC SURFACE BY DIPPING METHOD - A method for fabricating a 3D (three-dimensional) structure is disclosed to provide hydrophobicity to a surface of a 3D structure by using a dipping method in which a predetermined-shaped structure is immersed in a molten metal solution. The method includes: immersing a predetermined-shaped structure in a molten metal solution to coat a molten metal material on the surface of the predetermined-shaped structure; anodizing a metal base coated with the molten metal material; coating a polymer material on an outer surface of the metal-coated base to form a negative replica structure; covering an outer surface of the negative replica structure with an outer formation material; and removing the metal-coated base from the negative replica structure and the outer formation material.02-24-2011

Hyun-Chul Park, Pohang-City KR

Patent application numberDescriptionPublished
20100028615METHOD FOR FABRICATING SUPERHYDROPHOBIC SURFACE AND SOLID HAVING SUPERHYDROPHOBIC SURFACE STRUCTURE BY THE SAME METHOD - A method of processing a superhydrophobic surface and a solid body having the superhydrophobic surface processed by the method are provided. The method includes orienting a spray nozzle of a particle sprayer toward a surface of a metal body, operating the particle sprayer to forming micro-scale protrusions and depressions on the surface of the metal body by spraying particles to the surface of the metal body, forming a plurality of nano-scale holes on the surface of the metal body by treating the metal body through an anodic oxidation process, forming a replica by immersing the metal body in a non-wetting polymer material and solidifying the non-wetting polymer material, and forming a superhydrophobic dual-scaled surface structure having nano-scale pillars formed on micro-scale protrusions and depressions by removing the metal body and an anodic oxide from the replica.02-04-2010
20100101568Inhalation Anesthetic Device - The present invention relates to an inhalation anesthetic device whereby a patient inhales an anesthetic gas and is smoothly anesthetized. The present invention provides an inhalation anesthetic device that includes an inflatable member that inflates when a gas flows therein, an inhaling pipe through which the gas passes and that is connected to the inflatable member, and a gas container that contains an anesthetic gas and is connected to the inhaling pipe. According to the present invention, a patient is smoothly anesthetized while inflating an inflatable member.04-29-2010
20100126873MANUFACTURING METHOD OF 3D SHAPE STRUCTURE HAVING HYDROPHOBIC INNER SURFACE - The present invention relates to a manufacturing method of a three dimensional structure having a hydrophobic inner surface. The manufacturing method includes anodizing a three dimensional metal member and forming fine holes on an external surface of the metal member, forming a replica by coating a non-wetting polymer material on the outer surface of the metal member and forming the non-wetting polymer material to be a replication structure corresponding to the fine holes of the metal member, forming an exterior by surrounding the replication structure with an exterior forming material, and etching the metal member and eliminating the metal member from the replication structure and the exterior forming material.05-27-2010
20100252525MANUFACTURING METHOD OF 3D SHAPE STRUCTURE HAVING HYDROPHOBIC EXTERNAL SURFACE - The present invention relates to a three-dimensional structure manufacturing method for performing surface treatment processes, and a replication step to provide hydrophobicity on an external surface of the three-dimensional structure. In the manufacturing method, the hydrophobicity may be provided to the external surface of the three-dimensional structure, a high cost device required in the conventional MEMS process is not used, the manufacturing cost is reduced, and the manufacturing process is simplified. In addition, it has been difficult to provide the hydrophobicity on an external surface of a three-dimensional structure having a large surface due to a spatial limitation, but in the exemplary embodiment of the present invention, the hydrophobicity may be provided to the external surface of the three-dimensional structure having a large surface, such as a torpedo, a submarine, a ship, and a vehicle, without the spatial limitation.10-07-2010

Hyun-Chul Park, Gyungsangbuk-Do KR

Patent application numberDescriptionPublished
20090260702METHOD FOR FABRICATING SOLID BODY HAVING SUPERHYDROPHOBIC SURFACE STRUCTURE AND SUPERHYDROPHOBIC TUBE USING THE SAME METHOD - The present invention relates to a method for manufacturing a solid body having a superhydrophobic surface structure formed by using a surface treatment of a metal body, a replication process, and a polymer sticking phenomenon to increase efficiency of fluid transfer and prevent foreign materials from being accumulated in the tube, and a superhydrophobic fluid transfer tube using the method. The superhydrophobic fluid transfer tube includes a fluid guider and a solid body provided on a fluid contact surface of the fluid guider and has micrometer-scaled unevenness and nanometer-scaled protrusions. In the method, a plurality of nanometer-scaled holes are formed on a surface of a metal body through an anodizing process, a replica is formed by immersing the metal body provided with the nanometer-scaled holes in a non-wetting polymer material and solidifying the non-wetting polymer material, the solid body having the superhydrophobic surface is formed by removing the metal body and an anode oxide from the replica, and the solid body is provided to a fluid contact surface of a fluid guider for guiding a fluid.10-22-2009
20090317590METHOD FOR FABRICATING SUPERHYDROPHOBIC SURFACE AND SOLID HAVING SUPERHYDROPHOBIC SURFACE STRUCTURE BY THE SAME METHOD - A method of processing a superhydrophobic surface and a solid body having the superhydrophobic surface processed by the method are provided. The method forming a plurality of nano-scale holes having nano-scale diameter on a surface of a metal body through an anode oxidation process, forming a replica by immersing the metal body provided with the nano-scale holes in a hydrophobic polymer material and solidifying the hydrophobic polymer material, and forming the superhydrophobic surface by removing the metal body with an anode oxide. The solid body includes a base, and a surface structure having micro-scale unevenness formed by a plurality of bunches formed by a plurality of adjacent pillars that are formed on the base and have a nano-scale diameter.12-24-2009

Hyun-Chul Park, Jinju-Si KR

Patent application numberDescriptionPublished
20090102553DOHERTY AMPLIFIER - The present invention relates to the construction of output stage of the Doherty amplifier and comprises a main amplifying unit, an auxiliary amplifying unit and a compact λ/4 line connecting two amplifying units. The compact λ/4 line connecting two amplifying units includes a first parallel capacitor grounded by being connected to the main amplifying unit in parallel; a second parallel capacitor grounded by being connected to the auxiliary amplifying unit in parallel; and an inductor or a microstrip transmission line connecting the main amplifying unit and the auxiliary amplifying unit. The Doherty amplifier in accordance with the present invention further comprises a matching network unit connecting to a final output by connecting the main amplifying unit and the auxiliary amplifying unit and; and a λ/4 line used as the voltage inputs of the main amplifying unit and the auxiliary amplifying unit.04-23-2009

Hyun-Chul Park, Wonju-Shi KR

Patent application numberDescriptionPublished
20080308752UV TRANS-ILLUMINATOR - A UV (Ultra Violet) trans-illuminator includes a UV irradiating unit composed of a plurality of CCFLs (Cold Cathode Fluorescent Lamps) or EEFLs (External Electrode Fluorescent Lamps) arranged at intervals of 1.0 cm to 3.0 cm and having a diameter of 3 mm to 8 mm so as to irradiate UV rays from an upper surface thereof, and a light dispersing unit disposed at a distance of 1 cm to 7 cm from the upper surface of the UV irradiating unit and dispersing the UV rays irradiated from the UV irradiating unit. This UV trans-illuminator has a slim design, excellent uniformity and small elapsed time change.12-18-2008