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Cheolwoo
Cheolwoo Kim, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20110052973 | Cylinder type lithium ion secondary battery - Provided is a cylinder type lithium ion secondary battery capable of preventing an internal electrical short due to compression of a center pin in compression and collision. The cylinder type lithium ion secondary battery includes a cylindrical can, an electrode assembly housed in the cylindrical can, a center pin inserted into the electrode assembly, and a cap assembly sealing the cylindrical can. The center pin has a hollow inner space and a wall surrounding the inner space. Outer diameters of an upper portion and lower portion of the center pin are larger than an outer diameter of a central portion of the center pin. Therefore, an internal electrical short due to compression of the center pin can be prevented in compression and collision. | 03-03-2011 |
Cheolwoo Park, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20110115726 | TOUCH SENSING APPARATUS AND METHOD OF DRIVING THE SAME - A touch sensing apparatus includes; at least one light source which sequentially generates a plurality of lights, a light sensor which faces the at least one light source and outputs a plurality of signals corresponding to a magnitude of the plurality of lights, a light guide plate interposed between the at least one light source and the light sensor to guide the plurality of lights from the at least one light source to the light sensor and a coordinate generator which calculates coordinates of a touch input which occurs on the light guide plate using the signal output from the light sensor corresponding to the touch input. | 05-19-2011 |
Cheolwoo Park, Hwaseong-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20110237063 | METHODS OF FABRICATING SEMICONDUCTOR DEVICE - A method of fabricating a semiconductor device includes forming a gate dielectric layer and a first gate layer sequentially on an overall surface of a substrate including a first region and a second region, forming a lanthanum-oxide (La | 09-29-2011 |
Cheolwoo Yoo, Anyang-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090232235 | User scheduling method in multiple antenna system - A user scheduling method includes: determining a maximum temporary user set of a maximum capacity among temporary user sets obtained from combinations of M number of active users; and transmitting data to users belonging to the maximum temporary user set via multiple antennas by using a preceding matrix and a weight matrix with respect to the maximum temporary user set. Users to actually receive data can be selected from among active users in a multi-antenna system, and a corresponding precoding matrix and a weighting matrix can be obtained. | 09-17-2009 |