Byung-Chun
Byung-Chun Jung, Ulsan-City KR
Patent application number | Description | Published |
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20080287212 | Golf Club Shaft and Method of Fabricating the Same - A precise impact and increased ball drive distance may be achieved due to an increase of elastic force and restoring force of a golf club shaft, when the golf club shaft includes: a first shell portion interiorly disposed in the golf club shaft; at least one elastic member disposed in a length direction on an exterior circumference of the first shell portion; and a second shell portion including carbon and enclosing the first shell portion and the at least one member. | 11-20-2008 |
Byung-Chun Park, Seoul KR
Patent application number | Description | Published |
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20090068561 | POSITIVE ACTIVE MATERIAL FOR LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND LITHIUM BATTERY INCLUDING THE SAME - A positive active material according to one embodiment of the present invention includes an internal bulk part and an external bulk part surrounding the internal bulk part and has a continuous concentration gradient of the metal composition from an interface between the internal bulk part and the external bulk part to the surface of the active material. The provided positive active material in which the metal composition is distributed in a continuous concentration gradient has excellent electrochemical characteristics such as a cycle life, capacity, and thermal stability. | 03-12-2009 |
Byung-Chun Yu, Paju KR
Patent application number | Description | Published |
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20090167656 | LIQUID CRYSTAL DISPLAY TO WHICH INFRARED RAYS SOURCE IS APPLIED AND MULTI-TOUCH SYSTEM USING THE SAME - There are provided a liquid crystal display (LCD) to which infrared rays (IR) light sources are applied and a multi-touch system using the same. The LCD to which IR light sources are applied includes a back light in which a plurality of lamp light sources and a plurality of IR light sources are repeatedly arranged in column and row directions, a diffusion plate and a plurality of optical sheets arranged on the back light, and an LCD panel provided on the back light to display an image using light incident from the back light. | 07-02-2009 |
20100156828 | TOUCH TYPE DISPLAY DEVICE - A touch type display device includes: a flat panel display module; a plurality of infrared light emitting units disposed on a portion or on the entirety of the edge of the flat panel display module; an infrared camera disposed on at least two corners of the flat panel display module; and a band pass filter allowing light of a certain wavelength band in light emitted from the infrared light emitting units to pass therethrough so as to be supplied to the infrared camera. | 06-24-2010 |