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Ji Hoon Kim
Ji Hoon Kim, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20090068822 | METHOD FOR PREPARING SUBSTRATE FOR GROWING GALLIUM NITRIDE AND METHOD FOR PREPARING GALLIUM NITRIDE SUBSTRATE - Provided is a method for preparing a substrate for growing gallium nitride and a gallium nitride substrate. The method includes performing thermal cleaning on a surface of a silicon substrate, forming a silicon nitride (Si | 03-12-2009 |
| 20090111250 | METHOD FOR PREPARING COMPOUND SEMICONDUCTOR SUBSTRATE - Provided is a method for preparing a compound semiconductor substrate. The method includes coating a plurality of spherical balls on a substrate, growing a compound semiconductor epitaxial layer on the substrate coated with the spherical balls while allowing voids to be formed under the spherical balls, and cooling the substrate on which the compound semiconductor epitaxial layer is grown so that the substrate and the compound semiconductor epitaxial layer are self-separated along the voids. The spherical ball treatment can reduce dislocation generations. In addition, because the substrate and the compound semiconductor epitaxial layer are separated through the self-separation, there is no need for laser lift-off process. | 04-30-2009 |
| 20090237815 | LENS DRIVING APPARATUS - Disclosed is a lens driving apparatus. The lens driving apparatus comprises a base, a yoke coupled to the base, having an upper surface formed with a hole, a closed side surface, and an opened bottom surface, a bobbin movably installed in an inner portion of the yoke, a lens module coupled to the bobbin to go in and out the hole according to movement of the bobbin, a magnet fixed to an inner portion of the yoke, a coil fixed to an outer portion of the bobbin while facing the magnets, and springs coupled to the bobbin to provide restoration force to the bobbin. | 09-24-2009 |
| 20100330784 | METHOD FOR PREPARING COMPOUND SEMICONDUCTOR SUBSTRATE - Provided is a method for preparing a compound semiconductor substrate. The method includes coating a plurality of spherical balls on a substrate, growing a compound semiconductor epitaxial layer on the substrate coated with the spherical balls while allowing voids to be formed under the spherical balls, and cooling the substrate on which the compound semiconductor epitaxial layer is grown so that the substrate and the compound semiconductor epitaxial layer are self-separated along the voids. The spherical ball treatment can reduce dislocation generations. In addition, because the substrate and the compound semiconductor epitaxial layer are separated through the self-separation, there is no need for laser lift-off process. | 12-30-2010 |
| 20110051264 | LENS DRIVING APPARATUS - Disclosed is a lens driving apparatus. The lens driving apparatus comprises a base, a yoke coupled to the base, having an upper surface formed with a hole, a closed side surface, and an opened bottom surface, a bobbin movably installed in an inner portion of the yoke, a lens module coupled to the bobbin to go in and out the hole according to movement of the bobbin, a magnet fixed to an inner portion of the yoke, a coil fixed to an outer portion of the bobbin while facing the magnets, and springs coupled to the bobbin to provide restoration force to the bobbin. | 03-03-2011 |
| 20110074859 | Roll-to-Roll Printing System and Method - Disclosed are a roll-to-roll printing system and method in which a large number of micro-nozzles are formed directly in a printing roll, and thus ink supplied to the central portion of the roll can be formed into micro-inkjets by inducing an electrostatic field, and furthermore, as a result of the formation of the micro-inkjets, a micro-sized pattern significantly smaller than that achievable by a prior pattern formation method can be printed on a print medium, and in addition, the relative speed of the print medium relative to the roll can be maintained at a speed close to “0” so as to improve the resolution, integration density and precision of the printed pattern. | 03-31-2011 |
| 20110075161 | Apparatus for Jetting Droplet and Apparatus for Jetting Droplet Using Nanotip - The present invention provides a droplet jetting apparatus which jets fluid in a droplet shape. The apparatus includes a main body ( | 03-31-2011 |
| 20110316988 | THREE DIMENSIONAL TELEVISION AND SYSTEM USING RF WIRELESS COMMUNICATION AND METHOD FOR SYNCHRONIZING OF THREE DIMENSIONAL TELEVISION SYSTEM USING THE SAME - Disclosed herein are a 3D TV and a system using RF wireless communication and a method for synchronizing a 3D TV system using the same. In the 3D TV system using the RF wireless communication according to an exemplary embodiment of the present invention, two or more 3D TVs transmit and receive synchronous signals through the RF wireless communication, thereby locking the screen synchronization and synchronous signals of the 3D TVs. Thereafter, when the 3D TVs transmits the synchronous signals to the 3D spectacles, the synchronous signals including the time offset are transmitted, having different time difference. As a result, the 3D spectacles can be synchronized with images displayed on the 3D TVs by using time offset information. | 12-29-2011 |
Ji Hoon Kim, Gwangju KR
| Patent application number | Description | Published |
|---|---|---|
| 20090308098 | REFRIGERATOR - A refrigerator is disclosed. The refrigerator includes a storage compartment, and a shelf assembly provided in the storage compartment to be vertically adjustable, wherein the shelf assembly includes a support unit provided to be movable obliquely, and a shelf unit which is mounted on the support unit to move up and down according to an oblique movement of the support unit. The refrigerator has a simple structure capable of lifting a shelf up and down, thereby facilitating the manufacture and reducing manufacturing costs. | 12-17-2009 |
| 20100126203 | Refrigerator with ice supply device - Disclosed is a refrigerator, in which the structure of an ice supply device is improved. The refrigerator includes a main body, in which at least one storage chamber is formed; a door opening and closing the at least one storage chamber; an ice making unit provided on a rear surface of the door to make ice; an ice storage container provided under the ice making unit to store the ice made by the ice making unit; and at least one receiving rack provided on at least one side of right and left sides of the ice making unit or the ice storage container. | 05-27-2010 |
| 20110048060 | Refrigerator - A refrigerator is disclosed. The refrigerator may have a door opening device which is connected at an external surface of a main body, and includes a pushing unit operated by a driving unit to open a refrigerator door by pushing one side of the refrigerator door. Also, a buffering member may be provided between the door opening device and the external surface of the main body. Accordingly, the reliability of the refrigerator is improved. | 03-03-2011 |
Ji Hoon Kim, Gwangsan-Gu KR
| Patent application number | Description | Published |
|---|---|---|
| 20110011116 | Ice making apparatus and refrigerator having the same - An ice making apparatus, in which a vale cap is opened by manually adjusting a valve member of a water storage unit when making ice cubes, and a refrigerator having the same. The ice making apparatus includes a water storage unit having a storage main body, in which water is stored, an ice making unit to make ice cubes through supply of water stored in the storage main body, at least one valve member to open and close a water supply hole, through which water stored in the storage main body is supplied to the ice making unit, and an opening and closing member to move the at least one valve member so as to open the water supply hole. | 01-20-2011 |
Ji Hoon Kim, Jeju-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20110000249 | ICE MAKING DEVICE AND REFRIGERATOR HAVING THE SAME - A refrigerator includes a main body which forms an external appearance and has a storage chamber to be opened at a front side, and an ice making device which is disposed in the storage chamber to make ice. The ice making device includes an ice making tray which has ice making grooves for making ice, an ejector which rotates and separates the ice made in the ice making grooves, blocking members which are disposed at an upper portion of one side of the ice making grooves to prevent the ice separated from the ice making grooves through the other side of the ice making grooves from returning to the ice making grooves, and a guide member which is disposed above the other side of the ice making tray to guide the ice separated from the other side of the ice making grooves by the ejector toward the blocking members. | 01-06-2011 |
Ji Hoon Kim, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090040141 | Plasma display and driving method thereof - In a plasma display and a driving method thereof, an average grayscale value of all discharge cells are detected from an input video signal, and an auxiliary reset waveform is supplied to reset periods of all subfields when the detected average grayscale value is lower than a predetermined reference grayscale value. The reference grayscale value is established to be an average grayscale value of a video signal for selecting all of the discharge cells as turned-on cells in a subfield having a minimum weight value. Particularly, the reference grayscale value may be established to be 0 that is the same as an average grayscale value of a full-black video signal. | 02-12-2009 |
| 20100020058 | Plasma display and driving method thereof - A plasma display including a first electrode and a second electrode formed in parallel is disclosed. The plasma display gradually decreases a voltage at the second electrode from a second voltage to a third voltage while a first voltage is applied to the first electrode during a reset period. The plasma display changes the first voltage according to a change in the discharge firing voltage between the first electrode and the second electrode. The change in the discharge firing voltage may be determined in accordance with an accumulated driving time or a discharge time during the reset period. | 01-28-2010 |
| 20100120365 | METHOD FOR PAIRING WIRELESS COMMUNICATION DEVICES AND APPARATUS FOR THE SAME - The present invention relates to a method for pairing wireless communication devices through a simple process by selecting a wireless communication device desired by a user by receiving beacons of the wireless communication devices connected to IEEE 802.15.4 wireless communication network and setting pairing with a wireless communication device corresponding to a beacon with the greatest LQI (Link Quality Index) among the received beacons by a pairing request device needing pairing, and an apparatus for the same. | 05-13-2010 |
Ji Hoon Kim, Daejeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20080238553 | POWER AMPLIFYING DEVICE HAVING LINEARIZER - There is provided a power amplifying device having a linearizer in which a bias circuit has an initial impedance set when initially operated, then the impedance is varied according to a level of an input signal and the input signal is amplified in a broad range from a low level region to a high level region, thereby improving linearity of an output signal. The power amplifying device including: an amplifying unit receiving a bias power source and amplifying an input signal; a bias unit varying the bias power source according to a set impedance to provide to the amplifying unit; and an impedance setting unit setting the impedance of the bias unit in response to a preset control voltage when the bias unit is initially operated and re-setting the impedance of the bias unit according to a level of the input signal of the amplifying unit after initial operation of the bias unit. | 10-02-2008 |
| 20110137137 | SENSING DEVICE OF EMOTION SIGNAL AND METHOD THEREOF - The present invention relates to a sensing device of an emotion signal and a method thereof capable of recognizing and analyzing the change in emotion by collecting at least one of the bio signals and peripheral environmental signals, guiding the state of emotion to a user, and sharing emotion information with authorized persons and communicating it between them. The sensing device of the emotion signal according to the embodiment of the present invention includes a sensing signal processor that senses a plurality of bio signals and peripheral environment signals of a user; an emotion signal processor that generates emotion signals representing the emotional state of the user for each of the sensed bio signals and collects the emotion signals to generate an emotion index; and an emotion signal communication unit that optionally transmits the emotion signals and the emotion index to external authorized devices. | 06-09-2011 |
Ji Hoon Kim, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20120105133 | INPUT DEVICE - An input device includes a window, a transparent electrode disposed on each of a plurality of areas under the window, and a wire connected to the transparent electrode. The transparent electrode includes first and second electrodes. Each of the first and second electrodes includes at least two or more electrode parts and a connection part connecting the at least two or more electrode parts to each other. At least one electrode part of the first electrode is disposed between the electrode parts of the second electrode. The wire is connected to each of the first and second electrodes to extend outside an area which does not contact the other area contacting an area on which the transparent electrode is disposed. | 05-03-2012 |
Ji Hoon Kim, Daegu KR
| Patent application number | Description | Published |
|---|---|---|
| 20120112876 | ROAD GUIDE APPARATUS FOR A VISUALLY IMPAIRED PERSON - The present invention relates to a road guide apparatus for a visually impaired person, which not only senses the yellow color of Braille blocks installed on a road to guide the visually impaired person, but also reads information from an RFID tag to guide the visually impaired person. The road guide apparatus for a visually impaired person comprises a road sensing apparatus | 05-10-2012 |