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Joo-Ho

Joo-Ho Kang, Seoul KR

Patent application numberDescriptionPublished
20100068881Method of forming metallization in a semiconductor device using selective plasma treatment - A method of forming metallization in a semiconductor device, including forming an interlayer insulation layer on a semiconductor layer, forming a hole in the interlayer insulation layer by removing a portion of the interlayer insulation layer, forming a metal seed layer in the hole and on an upper surface of the interlayer insulation layer, such that the metal seed layer includes a first portion on the upper surface of the interlayer insulation layer, a second portion on an upper side surface of the hole, and a third portion on central and lower side surfaces of the hole, selectively plasma-treating a portion of the metal seed layer, forming a metal layer on the metal seed layer to fill the hole, and forming metallization by polishing the metal layer.03-18-2010

Joo-Ho Kim, Suwon-Si KR

Patent application numberDescriptionPublished
20090016205Optical Recording Medium and Method for Reproducing Information From Optical Recording Medium - An optical recording medium includes a substrate, a first dielectric layer, a recording layer, a second dielectric layer, a super-resolution layer, and a third dielectric layer, which are provided in that order. The super-resolution layer is formed of a material configured such that voids are generated when the material is irradiated with DC light at a predetermined irradiation power for 1 to 300 seconds. Therefore, super-resolution reproduction can be made such that the irradiation power of a readout laser beam does not depend on the size of a recording mark.01-15-2009
20100034566LIGHT ABSORBENT MEMBER, HEATING DEVICE, FIXING DEVICE AND IMAGE FORMING APPARATUS EMPLOYING THE SAME - Disclosed are a novel light absorptive member, a heating device employing such light absorptive member, a fixing device employing such heating device and an image forming apparatus that uses the fixing device. The light absorptive member includes nano-rods dispersed therein, and can increase absorption efficiency of a heating device, such as, for example, a fixing device that uses a light source as a radiant heat source, due to the surface plasmon resonance phenomenon that occurs when the wavelength(s) of the light corresponds the peak wavelength(s) of the absorptive rate for the light based on the aspect ratio(s) of the nano-rods.02-11-2010
20100111580LIGHT ABSORPTION DEVICE, FIXING UNIT COMPRISING THE LIGHT ABSORPTION DEVICE AND IMAGE FORMING APPARATUS COMPRISING THE FIXING UNIT - Disclosed are a light absorption device, a fixing unit including the same and an image forming apparatus including such fixing unit. The light absorption device includes a plurality of dielectric layers containing nano-rods. Surface plasmon resonance generated in response to certain wavelengths corresponding to the dielectric constants of the dielectric layers can result in an improvement in the light absorption efficiency. Further improvements can be realized by adjusting the dielectric constants of the dielectric layers.05-06-2010
20100129125LIGHT-ABSORPTIVE DEVICE, FIXING UNIT USING THE LIGHT-ABSORPTIVE DEVICE, AND IMAGE FORMING APPARATUS - A light-absorptive device for absorbing light includes a light source configured to emit light and a light-absorptive element configured to absorb the light emitted from the source. The light-absorptive element includes a light-absorptive layer in which a nano-component comprised of one or more nano particles coated with a shape keeping agent is dispersed. The aspect ratio(s) and/or the dielectric constant of the light-absorptive layer may be selectively varied to realize a peak wavelength of absorption spectrum that corresponds to the wavelength(s) of the light emitted by the light source. The light-absorptive device may be incorporated as a heating unit, such as a fixing unit of an image forming apparatus to fix toner images on to a recording medium.05-27-2010
20100157306APPARATUS AND METHOD FOR DETECTING SURFACE PLASMON RESONANCE - Disclosed are an apparatus and a method for detecting a surface plasmon resonance. The apparatus may radiate a polarized beam of light to a device, such as a surface plasmon resonance generator, and may measure variations in a temperature of the device to detect whether a surface plasmon resonance has occurred. The detection of a surface plasmon resonance may be associated with the presence of a particular material such as volatile organic compounds (VOCs) or materials disrupting ozone, for example.06-24-2010
20100188959INFORMATION STORAGE MEDIUM AND APPARATUS FOR RECORDING/REPRODUCING THE SAME - An information storage medium and an apparatus for recording/reproducing the same are provided. The information storage medium is provided in which repetitive recording is performed by using nanorods formed of a material capable of repeatedly changing light absorption.07-29-2010
20100202272METHOD OF FABRICATING NANOROD INFORMATION STORAGE MEDIUM - A method of fabricating an information storage medium, the method including forming a plurality of nanorod recording layers on a substrate by sputtering using a mask having a plurality of nanorod patterns.08-12-2010

Patent applications by Joo-Ho Kim, Suwon-Si KR

Joo-Ho Lee, Seoul KR

Patent application numberDescriptionPublished
20080316646PERPENDICULAR MAGNETIC RECORDING HEAD AND METHOD OF MANUFACTURING THE SAME - A perpendicular magnetic recording head and a method of manufacturing the same are provided. The perpendicular magnetic recording head that includes a main pole, a return yoke, and coils that surround upper and lower parts of the main pole in a solenoid shape so that the main pole generates a magnetic field for recording information onto a recording medium, wherein a portion of the coils that pass above the main pole comprises a plurality of first coils and at least one second coil having a cross-sectional shape different from that of the first coils, and the second coil is formed across upper regions of two first coils adjacent to each other among the first coils.12-25-2008
20090062949AUDIO DATA PLAYER AND METHOD OF CREATING PLAYBACK LIST THEREOF - An audio data player may include a storage unit for storing one of more sound source files containing tag information, and an extraction unit for extracting one piece of information among the tag information (e.g., information on artist, album, title, year, genre, and user preference) of the stored sound source files. A control unit may provide the tag information of each sound source file extracted by the extraction unit in the form of a list, receiving one element of the provided list, and create a playback list.03-05-2009
20100168281Spalling-Preventing Composite Material Composed of Fiber and Powder Having Different Diameters and Melting Points, and High-Strength Refractory Concrete Comprising the Same - Disclosed herein are a spalling-preventing composite material composed of fiber and powder, which have different diameters and melting points so as to be capable of realizing the effect of preventing spalling of high-strength concrete and the effect of improving the fluidity of concrete, and a high-strength refractory concrete comprising the spalling-preventing material. The composite material for preventing spalling of high-strength concrete is composed of powder and fiber at 1:1-3, wherein the powder is a polymer powder having a diameter of 0.10-0.5 mm and a melting point of 110-150° C., and the fiber is a conjugate fiber including a first fiber having a diameter of 0.05-0.10 mm, a length of 5-25 mm and a melting point of 150-190° C., and a second fiber having a diameter of 0.01-0.05 mm, a length of 5-25 mm and a melting point of 190-250° C., the first fiber being a polypropylene fiber, and the second fiber being a nylon fiber or a polyvinyl alcohol fiber.07-01-2010
20100197354PORTABLE TERMINAL HAVING PROJECTING FUNCTION - A portable terminal is provided and the portable terminal includes a terminal body, a projector operatively connected to the terminal body, and a door movably mounted to the terminal body, the door being moveable between a first position covering the projector and a second position exposing the projector.08-05-2010

Patent applications by Joo-Ho Lee, Seoul KR

Joo-Ho Lee, Ulsan-City KR

Patent application numberDescriptionPublished
20100048918Method of manufacturing vinylethylene carbonate - Provided is a method of manufacturing vinylethylene carbonate. The method includes synthesizing vinylethylene carbonate (VEC) by reaction of 3,4-dihydroxy-1-butene (3,4-DHB) and dialkyl carbonate using a base catalyst, and refining the VEC.02-25-2010

Joo-Ho Lee, Seoul-Si KR

Patent application numberDescriptionPublished
20090085874TOUCH SCREEN DEVICE AND CHARACTER INPUT METHOD THEREIN - A device, computer program product and method of inputting a character in a touch screen device, in which a touch area is partitioned into a plurality of array positions, and one or more letters are assigned to each of the partitioned array positions. The method comprises the steps of: partitioning a touch area of the touch panel into a plurality of array positions and assigning one or more characters to each of the partitioned array positions; sensing an expansion event of selecting one among the array positions; dividing the touch area into a plurality of selection positions and assigning the characters assigned to the array position selected by the expansion event to the respective selection positions; sensing a selection event of selecting one among the selection positions; and recognizing the character assigned to the selection position selected by the selection event as an input character.04-02-2009

Joo-Ho Moon, Seoul KR

Patent application numberDescriptionPublished
20080241391METHOD OF MANUFACTURING A METAL NANOPARTICLE, CONDUCTIVE INK COMPOSITION HAVING THE METAL NANOPARTICLE AND METHOD OF FORMING A CONDUCTIVE PATTERN USING THE SAME - A method of manufacturing a metal nanoparticle includes coupling a metal ion to an organic ligand having a weight-average molecular weight of about 10,000 to about 1,500,000. The method further includes reducing the metal ion coupled to the organic ligand to form a metal nanoparticle having a skin layer.10-02-2008
20080241414CONDUCTIVE INK COMPOSITION AND METHOD OF FORMING A CONDUCTIVE PATTERN USING THE SAME - A conductive ink composition includes about 15% to about 50% by weight of copper nanoparticles, about 40% to about 80% by weight of a non-aqueous solvent mixture, about 0.01% to about 5% by weight of a dispersion agent and about 1% to about 20% by weight of a wetting agent. A conductive pattern may be formed with use of the conductive ink composition and an inkjet printer.10-02-2008

Joo-Ho Uem, Gyeongsangbuk-Do KR

Patent application numberDescriptionPublished
20100138194METHOD OF ANTHROPOMETRIC PRODUCT DESIGN AND MEDIA THAT CAN RECORD COMPUTER PROGRAM FOR METHOD THE SAME - Provided are an anthropometric product design method and a recording media storing a computer program for the same. The anthropometric product design method includes the operations of: (a) expressing the relationships between human body variables and design variables in equations, and establishing design equations for design variables, respectively, of a product to be designed; (b) generating a representative human model (RHM) for the product to be designed; (c) extrapolating postures according to changes in design dimensions through a computer simulation using the design equations and RHMs, and comparing data on the extrapolated postures with defined reference posture data to perform a design sensitivity analysis; and (d) determining optimal design dimensions for related design variables based on the design sensitivity analysis. Accordingly, because various human body dimensions and product use postures of users can be reflected in product designs through computer simulation, products that are better customized for users can be designed, and products can be designed that are optimized through design sensitivity analyses of posture loss scores according to changes in design dimensions.06-03-2010