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Ahn, Cheongju-Si
Gihwan Ahn, Cheongju-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090003001 | OPTICAL PATH DEFLECTING PLATE, SURFACE LIGHT SOURCE DEVICE AND TRANSMISSIVE IMAGE DISPLAY DEVICE - An optical path deflecting plate of the present invention, which is disposed separated from a plurality of light sources, comprises a main surface on which light from the light sources is incident, and a planar exit surface from which there exits the incident light from the light sources. The main surface comprises a plurality of prisms provided in each region of the main surface that corresponds to a region between two adjacent light sources. First prisms, among the plurality of prisms, are disposed in first and third regions of respective regions, while second prisms are disposed in a second region. The first prisms change the orientation of light from the closer light source, among the two light sources, into the direction of the normal line of the exit surface, through refraction upon incidence on the first prisms, and change the orientation of light from the farther light source, among the two light sources, into the normal line direction, through total reflection in the prisms. The second prisms change the orientation of light from both light sources into the normal line direction, through total reflection in the prisms. As a result, uniform high brightness can be ensured. | 01-01-2009 |
| 20090003017 | LIGHT CONTROL PLATE, SURFACE LIGHT SOURCE DEVICE AND TRANSMISSIVE IMAGE DISPLAY DEVICE - A light control plate | 01-01-2009 |
| 20090109657 | LIGHT CONTROL PLATE, SURFACE LIGHT SOURCE DEVICE, AND TRANSMISSION TYPE IMAGE DISPLAY APPARATUS - A light control plate, a surface light source device, and a transmission type image display apparatus which can emit light widened within a predetermined angle range are provided. In a light control plate | 04-30-2009 |
| 20090161346 | SURFACE LIGHT SOURCE DEVICE AND LIQUID CRYSTAL DISPLAY - The present invention provides a surface light source device capable of emitting light with high uniformity in luminance. | 06-25-2009 |
Hyun Hee Ahn, Cheongju-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090136461 | Neuronal differentiation method of adult stem cells using small molecules - The present invention relates to a neuronal differentiation method of adult stem cells using small molecules, more particularly to a method for inducing differentiation of adult stem cells into nerve cells using small molecules, which enables effective differentiation into nerve cells and, thus, is useful in treating intractable CNS disorders such as Parkinson's disease, dementia, Alzheimer's disease and spinal cord injury. | 05-28-2009 |
Keunpyo Ahn, Cheongju-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20110045321 | BATTERY PACK CONTAINING PCM EMPLOYED WITH SAFETY MEMBER - Disclosed herein is a battery pack including a battery cell having an electrode assembly of a cathode/separator/anode structure mounted in a battery case together with an electrolyte in a sealed state, and a protection circuit module (PCM) electrically connected to the battery cell, wherein the PCM is provided with a safety device of which a circuit is cut off when temperature is high or a large amount of current flows. | 02-24-2011 |
| 20110064972 | SECONDARY BATTERY PACK OF COMPACT STRUCTURE - Disclosed herein is a secondary battery pack including a battery cell having an electrode assembly mounted in a battery case together with an electrolyte, a protection circuit module (PCM) having a protection circuit for controlling overcharge, overdischarge, and overcurrent of the battery cell, an insulative mounting member mounted to a top cap of the battery cell, and an insulative cap coupled to the upper end of the battery cell, wherein the top cap is provided with at least one protrusion-type electrode terminal, and the top cap is provided at a partial region where the protrusion-type electrode terminal is not formed with a space (depression space) depressed downward by a predetermined depth. The insulative mounting member is provided with a through-hole (a first through-hole) corresponding to the protrusion-type electrode terminal and a through-hole (a second through-hole) corresponding to the depression space, the PCM is provided with a coupling through-hole corresponding to the first through-hole, and the coupling of the insulative mounting member and the PCM to the battery cell is achieved by successively fixedly inserting the protrusion-type electrode terminal through the first through-hole of the insulative mounting member and the coupling through-hole of the PCM. | 03-17-2011 |
| 20110070466 | SECONDARY BATTERY PACK PROVIDING EXCELLENT PRODUCTIVITY AND STRUCTURAL STABILITY - Disclosed herein is a secondary battery pack including a battery cell having an electrode assembly mounted in a battery case together with an electrolyte, the battery case having an open top sealed by a top cap, a protection circuit module having a protection circuit for controlling overcharge, overdischarge, and overcurrent of the battery cell, an insulative mounting member constructed in a structure in which the protection circuit module is loaded at a top of the insulative mounting member, the insulative mounting member being mounted to the top cap of the battery cell, and an insulative cap coupled to an upper end of the battery cell for covering the insulative mounting member in a state in which the protection circuit module is loaded on the insulative mounting member, wherein the top cap is provided with a pair of protrusion-type electrode terminals (a first protrusion-type electrode terminal and a second protrusion-type electrode terminal) connected to a cathode and an anode of the electrode assembly, respectively, the insulative mounting member is provided with through-holes corresponding to the protrusion-type electrode terminals, the protection circuit module is provided with through-holes corresponding to the protrusion-type electrode terminals, and the coupling of the insulative mounting member and the protection circuit module to the battery cell is achieved by successively fixedly inserting the protrusion-type electrode terminals through the through-holes of the insulative mounting member and the protection circuit module. | 03-24-2011 |
Tae Young Ahn, Cheongju-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090231884 | SWITCHING POWER SUPPLY DEVICE USING CURRENT SHARING TRANSFORMER - In accordance with the present invention, the switching power supply device using a current sharing transformer includes an inverter switching unit for switching an input voltage; a share inductor for classification connected to the inverter switching unit for distributing a current applied by the inverter switching unit; first and second transformers of which each primary side connected to the share inductor for classification is connected in parallel to each other; and a rectifying unit connected to secondary sides of the first and second transformers. | 09-17-2009 |
Yeong Bae Ahn, Cheongju-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20100155904 | SEMICONDUCTOR DEVICE HAVING CMP DUMMY PATTERN AND METHOD FOR MANUFACTURING THE SAME - A semiconductor device including a CMP dummy pattern and a method for manufacturing the same are provided. The warpage of a wafer can be prevented by forming the CMP dummy pattern in the same direction and/or at the same angle as a pattern of a cell region. Accordingly, overlay error caused by etching residues is reduced, thereby improving the yield of the semiconductor device. | 06-24-2010 |