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Il-Yong
Il Yong Lee, Daejeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20080242852 | Method for Preparation of Hydroxyalkylalkylcellulose Ethers with High Yield - The present invention relates to a method for preparing hydroxyalkylalkylcellulose with high yield, more particularly to a method for preparing hydroxyalkylalkylcellulose with high yield, with at least 60% of alkoxy and hydroxyalkoxy substituted, by treating finely ground pulp with an alkali metal hydroxide at room temperature, reacting it with an alkylene oxide and an alkyl halide, and then adding an alkali metal hydroxide and an alkyl halide thereto. The method of the present invention is highly economical and also environment-friendly because waste of the reactants can be greatly reduced. | 10-02-2008 |
Il Yong Lee, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20100208093 | METHOD FOR PROCESSING IMAGE DATA IN PORTABLE ELECTRONIC DEVICE, AND PORTABLE ELECTRONIC DEVICE HAVING CAMERA THEREOF - The present disclosure is related to a method for processing image data in the portable electronic device, the method including obtaining an image through an image obtaining unit of the electronic device having a plurality of shot modes; determining each good-to-fit score of the plurality of shot modes for the obtained image; and displaying the each good-to-fit score of the plurality of shot modes for the obtained image along with the obtained image. | 08-19-2010 |
Il Yong Park, Cheonan KR
| Patent application number | Description | Published |
|---|---|---|
| 20090023976 | IMPLANTABLE MIDDLE EAR HEARING DEVICE HAVING TUBULAR VIBRATION TRANSDUCER TO DRIVE ROUND WINDOW - An implantable middle ear hearing device having a tubular vibration transducer to drive a round window is designed to input sound to a round window opposite an oval window in an inner ear. The tubular vibration transducer has a unique structure that does not attenuate the magnitude of a signal, particularly, in a high frequency band. Sound delivery effect is much higher than those of conventional schemes. It is also possible to minimize difficulties associated with and problems resulting from the operation, which the conventional methods would have. Further, the transducer can have a relatively less compact than ossicle contact type transducers, and thus be easily fabricated. The hearing device can be applied to a sensorineural hearing loss patient with the ossicle damaged. Moreover, since sound is directly transmitted without through the ear drum and the ossicle, high efficiency sound delivery is achievable and hearing loss compensation are easy. | 01-22-2009 |
| 20090131742 | ROUND WINDOW DRIVING TRANSDUCER FOR EASY IMPLANTATION AND IMPLANTABLE HEARING DEVICE HAVING THE SAME - The present invention relates to a round window driving transducer for easy implantation and an implantable hearing device having the same. The round window driving transducer is implantable in the round window of the cochlea in the middle ear cavity, and has excellent high frequency characteristics, which can assist patients with sensorineural hearing loss to hear sound better. The round window driving transducer can be placed inside the middle ear cavity, radiate sound with high efficiency, and be implanted by surgery using a fixing part formed with shape memory alloy, shape memory resin, or a bendable spring structure. Further, the round window driving transducer can overcome problems of the prior art, such as a difficult surgery and low vibration efficiency, which would inevitably occur when floating mass transducers are implanted in a drilled groove in the bone or when various types of piezoelectric transducers are implanted in the round window. | 05-21-2009 |
Il Yong Park, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20090065863 | LATERAL DOUBLE DIFFUSED METAL OXIDE SEMICONDUCTOR DEVICE - In one example embodiment, an LDMOS device includes a first n-type well formed on a p-type substrate, a plurality of isolation layers formed in the first n-type well, a p-type ion implantation region formed on a surface of each of the isolation layers, and a gate selectively formed on the first n-type well and the isolation layers. | 03-12-2009 |
Il-Yong Jung, Bucheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20100327758 | LED Light Emitting Device And Driving Method Thereof - The present invention relates to an LED light emitting device and a driving method, and discloses a technology that may improve a slew rate of a channel current flowing through an LED channel when driving with a pulse width modulation method. For this, the present invention includes an LED channel consisting of a plurality of LED elements that are consecutively and serially connected, a current control switch that is connected to the end of the LED channel and performs a switching operation, and an operational amplifier that controls the switching operation of the current control switch according to a pulse width modulation signal. The LED driver samples an output voltage at the operational amplifier when the pulse width modulation signal is in an on state, and maintains the output voltage of the operational amplifier when the pulse width modulation signal is in an off state. | 12-30-2010 |
Il-Yong Jung, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090213294 | BACKLIGHT UNIT FOR DYNAMIC IMAGE AND DISPLAY EMPLOYING THE SAME - A backlight unit for a dynamic image and a display employing the same are provided. The backlight unit is used for a light source of a display and includes light-emitting devices located separately on a substrate, an image analyzer which analyzes an image signal and extracts position information on a region requiring the relative increase or decrease of brightness, and a control unit which independently drives and controls the light-emitting devices located in a region corresponding to the position information inputted from the image board. Accordingly, the display employing the backlight unit can provide a more dynamic and realistic image. | 08-27-2009 |
Il-Yong Kim, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20100319471 | RACK ASSIST TYPE ELECTRIC POWER STEERING SYSTEM - A rack assist type electric power steering system has a durable and simplified structure with reduced parts and has an improved productivity, so as to reduce the manufacturing cost thereof and remarkably reduce an assembling difficulty thereof. | 12-23-2010 |
Il-Yong Park, Chungcheongnam KR
| Patent application number | Description | Published |
|---|---|---|
| 20090281367 | TRANS-TYMPANIC MEMBRANE TRANSDUCER AND IMPLANTABLE HEARING AID SYSTEM USING THE SAME - A trans-tympanic membrane transducer and an implantable hearing aid system using the same. The trans-tympanic membrane transducer vibrates the tympanic membrane using a miniature magnetic member perpendicularly extending through a portion of the tympanic membrane and a coil implanted adjacent to the magnet to generate alternating magnetic field corresponding to sound signal, so as to remarkably improve sound qualities in high frequency bands, which are hardly achievable by a conventional air conduction hearing aid. This overcomes difficulty, inconvenience and risk associated with a conventional operation that implants a miniature magnet on the surface of the tympanic membrane or on an auditory organ such as the ossicle in the middle ear. | 11-12-2009 |
Il-Yong Yoon, Bucheon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20120105750 | IMAGE DISPLAY DEVICE USING DIFFRACTIVE DEVICE - An image display device includes a display panel displaying an image and a diffractive device. The diffractive device operates in a 2D mode to enable perception of a 2D image from the image of the display panel and in a 3D mode to enable perception of the image of the display panel as a 3D image. The diffractive device includes a plurality of unit devices. When the diffractive device operates in 3D mode, at least one of the plurality of unit devices operates in a lens mode and a barrier mode during different periods. | 05-03-2012 |