Chang Keun
Chang Keun Lee, Gyeonggi-Do KR
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20130244977 | COSMETIC BIO-CELLULOSE MASK PACK SHEET AND METHOD FOR MANUFACTURING SAME - The present invention relates to a mask pack sheet using bio-cellulose obtained from fermented ginseng extracts, and more particularly, to a method for manufacturing a cosmetic mask pack sheet, comprising injecting microbial strains into a culture medium containing ginseng extracts so as to ferment the ginseng extracts and prepare a bio-cellulose sheet, and dipping the sheet into a cosmetic liquid. | 09-19-2013 |
20150269599 | SYSTEM FOR SELLING PRODUCTS BY PROVIDING RAFFLE TYPE CASH REWARDS BASED ON QR CODE AND SERVICE METHOD FOR SELLING PRODUCTS USING SAME - This invention is for a lottery-typed product sales system for cash rewarding based on a QR code and a lottery-typed product sales service method using the system, and the purpose of the technical realization is offering a lottery-typed product sales system for cash rewarding based on a QR code and a lottery-typed product sales service method using the system in order to make users (customers)'s consumption activities become rather a new means of financial technology that is able to create a large profit; promote a purchasing rate, for product sellers like a store, a company and so on, by attracting target customers much efficiently and systematically; and maximize sales. | 09-24-2015 |
Chang Keun Lee, Seoul KR
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20090251172 | SINGLE ELECTRON BASED FLEXIBLE MULTI-FUNCTIONAL LOGIC CIRCUIT AND THE TRANSISTOR THEREOF - The present invention relates to a flexible multi-functional logic circuit which switches a current direction to a serial or parallel direction using at least two single electron transistors (SETs) having the same pattern and as many field effect transistors (FETs) as the number of the single electron transistors and performs operations on multi-valued signals using Coulomb oscillation that is the unique characteristic of SET to enable conversion of a single logic circuit to four basic logic circuits of NAND, OR, NOR and AND gates and a device using the same. | 10-08-2009 |
20100163843 | ROOM TEMPERATURE-OPERATING SINGLE-ELECTRON DEVICE AND THE FABRICATION METHOD THEREOF - The present invention relates to a room temperature-operating single-electron device and a fabrication method thereof, and more particularly, to a room temperature-operating single-electron device in which a plurality of metal silicide dots formed serially is used as multiple quantum dots, and a fabrication method thereof. | 07-01-2010 |
20130097042 | COMMERCIAL TRANSACTION SYSTEM USING ONLINE INFORMATION MATCHING AND SERVICE PROVIDING METHOD THEREOF - The invention is about an electronic commerce system using on-line information matching and its services meant to offer real-time matching service between buyers and sellers, upon request from the buyer, User's Server, by granting the seller, Merchandiser's Server a signal code to respond to buyer's queries by selectively providing the queried information to the said User's Server by way of a bi-directional communication means to conclude the commercial relationship therebetween. | 04-18-2013 |
Chang Keun Lee, Yongin-Si KR
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20160106646 | COSMETIC KIT COMPRISING EFFERVESCENT TABLET AND SKIN TONER - One aspect of the present invention relates to an effervescent tablet comprising a water-soluble lubricating agent, and a carbonated water cosmetic composition enabled to be used together therewith. One aspect of the present invention relates to an effervescent tablet comprising a crystalline #-hydroxy acid and a water-soluble lubricating agent, and a cosmetic composition using a skin toner for preventing the tablet from floating and allowing the tablet to rapidly form carbon dioxide gas in the cosmetic composition so as to maximize the visual effect and also the effect of carbon dioxide, thereby showing skin whitening, brightening and moisturizing effects and improving the pores. | 04-21-2016 |
Chang Keun Min, Hwaseong-Si KR
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20130276283 | INJECTOR CUP UNIT FOR CONNECTING FUEL INJECTION PIPE AND METHOD OF FABRICATING THE SAME - There is provided a method of fabricating an injector cup unit for connecting a fuel injection pipe, which includes providing a steel bar in which parent bodies of injector cups and parent bodies of injector holders, integrally formed with the parent bodies of the injector cups, are continuously connected in a longitudinal direction thereof, cutting the steel bar to a preset length to fabricate the parent body of the injector cup and the parent body of the injector holder, and processing the parent body of the injector cup and the parent body of the injector holder to fabricate the injector cup and the injector holder integrally formed with the injector cup. | 10-24-2013 |
Chang-Keun Kim, Suwon-Si KR
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20150153548 | ZOOM LENS AND ELECTRONIC APPARATUS INCLUDING THE SAME - A zoom lens includes: in an order from an object side to an image side, a first lens group having a positive refractive power; a second lens group having a negative refractive power; a third lens group having a positive refractive power; and a fourth lens group having a positive refractive power, wherein, when zooming is performed from a wide angle position to a telephoto position, the first through fourth lens groups move, and the first lens group includes a first negative lens and a second positive lens from the object side. The zoom lens may be part of an electronic apparatus, such as a photographing apparatus. | 06-04-2015 |
Chang-Keun Lee, Ansan-Si KR
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20120319917 | CIRCULARLY POLARIZED CERAMIC PATCH ANTENNA HAVING EXTENDED GROUND FOR VEHICLE - A circularly polarized ceramic patch antenna having an extended ground for a vehicle is provided. The extended ground is formed under a patch antenna, has a predetermined thickness, is formed of a metal conductor having the same shape as the patch antenna, and is electrically connected to a ground plane formed on a board. The thickness of the extended ground is adjusted, so that it is possible to adjust radiation efficiency of the ceramic patch antenna that operates at a specific frequency band. Thus, the ceramic patch antenna has the effect of improving directionality of a radiation pattern formed in a direction parallel to the ground plane, and the effect of reducing a null point caused by a field effect to increase an antenna gain thereof. | 12-20-2012 |
20120326935 | BROADCASTING ANTENNA FOR VEHICLE AND SHARK FIN ANTENNA APPARATUS HAVING THE SAME - A broadcasting antenna for a vehicle and a shark fin antenna apparatus having the same are provided. The broadcasting antenna includes a main board on which a feeder circuit and a ground plane are formed, a helical radiation unit which includes a plurality of helical radiators that are electrically connected to the feeder circuit and the ground plane of the main board, that are formed in a first direction, and that are coupled apart from each other by a predetermined interval, and which has a coupling feed structure, and an extended radiation unit which includes a plurality of top loaders that are electrically connected to ends of the plurality of helical radiators, respectively, that are formed in a second direction, and that are coupled to each other. | 12-27-2012 |
Chang-Keun Lim, Seoul KR
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20100290999 | NANOPARTICLES OF LIGHT EMISSIVE POLYMERS AND PREPARATION METHOD THEREOF - Disclosed are nanoparticles of a light emissive polymer, comprising nanoparticles of a cyano-substituted poly(arylene vinylene) polymer; and a biocompatible surfactant adsorbed to the surface of the nanoparticles of the polymer, and preparation method thereof, wherein the method comprises: (1) uniformly mixing a dialdehyde monomer represented by a general formula OHC—Ar | 11-18-2010 |
20120276651 | FLUORESCENT NANOPROBE FOR DETECTING HYDROGEN PEROXIDE AND FABRICATION METHOD THEREOF - The present disclosure relates to a sulfonated benzene compound emitting fluorescence by reaction with hydrogen peroxide, aqueous-dispersed fluorescent nanoprobes applicable for real-time detection of hydrogen peroxide, and a fluorescent nanoprobe fabrication method. The fluorescent nanoprobe contains the following sulfonated benzene compound and water. | 11-01-2012 |
Chang-Keun Seo, Hwaseong-Si KR
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20160098060 | CRUM UNIT MOUNTABLE IN CONSUMABLE UNIT OF IMAGE FORMING APPARATUS AND IMAGE FORMING APPARATUS USING THE SAME - A customer replacement unit monitor (CRUM) unit that can be mounted in an image forming apparatus includes a decoder which receives first clock signals from the image forming apparatus and converts the first clock signals into second clock signals, a memory which stores data related with a consumable unit, and a controller which manages the memory based on data signals transmitted from the image forming apparatus and the second clock signals. The first clock signals are divided into a data section in which the data signals are transmitted and received and an idle section in which the data signals are not transmitted and received. The first clock signals have a first frequency on the data section while having a second frequency on the idle section, and the second clock signals are clock signals maintaining a high value or a low value on the idle section. | 04-07-2016 |