Chi-Hun
Chi Hun Kim, Gyeonggi-Do KR
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20150204066 | SOUND-ABSORBING MATERIAL WITH EXCELLENT SOUND-ABSORBING PERFORMANCE AND METHOD FOR MANUFACTURING THEREOF - Disclosed are a sound-absorbing material with improved sound-absorbing performance and a method for manufacturing the sound-absorbing material. The sound-absorbing material may improve sound absorption coefficient and transmission loss by forming large surface area and air layer, so as to induce viscosity loss of incident sound energy, and may provide light-weight design of a sound absorbing part or material since sound-absorbing performance may be substantially improved using reduced amount of fiber. Further, the sound-absorbing material may improve sound-absorbing performance by using binder fiber having rebound resilience, so as to maintain enough strength between fibers and also to maximize viscosity loss of sound energy transmitted to fiber structure. | 07-23-2015 |
Chi Hun Kim, Yongin KR
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20150252562 | SOUND-ABSORBING MATERIAL WITH EXCELLENT SOUND-ABSORBING PERFORMANCE AND METHOD FOR MANUFACTURING THEREOF - The present invention provides a sound-absorbing material with excellent sound-absorbing performance and a method for manufacturing thereof. More particularly, it relates to a sound-absorbing material, which can improve sound absorption coefficient and transmission loss by forming large surface area and air layer, so as to induce viscosity loss of incident sound energy, may make light-weight design possible because it can express excellent sound-absorbing performance even using reduced amount of fiber, and can improve sound-absorbing performance by using binder fiber having rebound resilience, so as to maintain enough strength between fiber and also to maximize viscosity loss of sound energy transmitted to fiber structure; and a method for manufacturing thereof. | 09-10-2015 |
Chi Hun Lee, Bucheon-Si Gyeonggi-Do KR
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20160051029 | INSTANT COSMETIC PREPARATION DEVICE AND THROWAWAY MIXING CONTAINER THEREFOR - An instant cosmetic preparation device, including: a housing of a given shape; a finished product container transfer part which is configured to transfer to a finished product container filled with a cosmetic mixture stored inside the housing to a sealing position under the user's control; a sealing part which is arranged inside the housing for sealing the mouth of the finished product container; and a control unit which is arranged inside the housing for controlling the operation of the sealing part to seal the mouth of the finished product container. | 02-25-2016 |
Chi-Hun Cheng, Wugu Township TW
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20090188657 | COMBINED ASSEMBLY OF FIXING BASE AND HEAT PIPE - A combined assembly of a fixing base and heat pipes includes a fixing base and at least one heat pipe. The fixing base has a plate body. The bottom surface of the plate body is formed with a transverse opening trough. The opening trough is provided with a through-hole penetrating the plate body. A longitudinal groove is provided in the opening trough at a position corresponding to that of the through-hole. One end of the longitudinal groove does not penetrate the plate body and is formed into a loose-proof section on the bottom section of the opening trough. The heat pipe has a heat-absorbing section and a heat-releasing section. The heat-releasing section penetrates to the outside of the through-hole, and the heat-absorbing section is accommodated in the opening trough. A portion of the heat-absorbing section is inserted into the longitudinal groove and stopped by the loose-proof section, and the other portion thereof is formed with a plane that is in flush with the bottom surface of the plate body. Via the above arrangement, the fixing base can be combined with the heat pipes firmly and tightly. | 07-30-2009 |
Chi-Hun Hwang, Suwon-Si KR
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20100007771 | DIGITAL PHOTOGRAPHING APPARATUS, METHOD OF CONTROLLING THE SAME, AND RECORDING MEDIUM STORING PROGRAM TO EXECUTE THE METHOD - A digital photographing apparatus is provided including a lens unit, an imaging device, and a main mirror disposed between the lens unit and the imaging device, wherein the position of the main mirror can be changed so that the main mirror either reflects at least part of light which passed through the lens unit toward a first orientation or the main mirror is not positioned on a path of the light which passed through the lens unit such that the light can be incident to the imaging device. A prism unit, a viewfinder, and an image sensor for live view are also included in the apparatus. A method of controlling the digital photographing apparatus, and a storage medium having recorded thereon a computer program for executing the method are also provided. | 01-14-2010 |
20100166418 | CAMERA ACCESSORY COUPLING APPARATUS - A camera accessory coupling apparatus capable of easily and quickly coupling a camera body to a camera accessory is provided. The camera accessory coupling apparatus includes a holder selectively detachable from the camera body; a locking pin, disposed in the holder, a portion of which may enter the holder or exit from the holder; an elastic member contacting the locking pin and applying an elastic force to the locking pin; and a locking lever coupled with the holder and selectively contactable with the elastic member to control the entering and exiting of the locking pin with respect to the holder. | 07-01-2010 |
Chi-Hun Hwang, Changwon-City KR
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20090067831 | Camera system and method for controlling the same - An automatic-lens-connection-type camera system, which detects insertion of a lens unit into a mount part and automatically screws a mount connector to connect the lens unit with the mount part, and a method for controlling the camera system. The camera system includes a body, a lens module mounted to be attachable to and detachable from the body, a lens module insertion part mounted on a surface of the lens module that faces the body, and a mount part for detecting insertion of the lens module into the body to mount the lens module insertion part on the body. | 03-12-2009 |
Chi-Hun Kim, Seoul KR
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20080207905 | Metallic Compound and Organic Electroluminescence Device Comprising the Same - The present invention relates to a light emitting metallic compound of Chemical Formula 1 and an organic electroluminescence device including the compound. In the Chemical Formula 1, M is selected from Ir, Pt, Rh, Re, and Os, m is 2 or 3, n is 0 or 1, the sum of m and n is 3, provided that the sum of m and n is 2 when M is Pt. X is an N or P atom, Y is S, O, or Se, and Z is SiR | 08-28-2008 |
20090306395 | METALLIC COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME - The present invention relates to a light emitting transition metal compound of Chemical Formula 1 and an organic electroluminescence device including the compound. | 12-10-2009 |
Chi-Hun Kwak, Daegu KR
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20160113307 | METHOD FOR PREPARING ORGANIC COATING POROUS GRANULES FOR FISH FEED OR ASSORTED FEED AID USING BLOOD OF LIVESTOCK AND CLAY MINERALS - The present invention relates to a method for preparing granules for a fish feed or an assorted feed aid, and more particularly, a method for preparing organic coating porous granules for a fish feed or an assorted feed aid using the blood of livestock and clay minerals. | 04-28-2016 |
Chi-Hun Lee, Busan KR
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20150307956 | METHOD OF EXTRACTING METAL IONS FROM RED MUD BY SONICATION - A method of effectively extracting metal ions by sonication from red med that is waste remaining after extracting aluminum from bauxite. The method includes: (a) introducing, into a reactor placed in a constant-temperature tank, (1) a neutralized red mud slurry and an acidic solution or (2) red mud slurry, distilled water and an acidic solution, to form a red mud slurry, and heating the constant-temperature tank to allow the red mud slurry to react while sonicating the red mud slurry, thereby extracting metal ions from the red mud; and (b) filtering a product resulting from step (a) to provide a filtrate and a red mud residue, and separating and recovering the filtrate and the red mud residue, wherein the sonication in step (a) is performed using an ultrasonic generator by applying ultrasonic waves to an ultrasonic tip placed in the constant-temperature tank. | 10-29-2015 |