Oh, Yuseong-Gu
Dae Kon Oh, Yuseong-Gu KR
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20100074282 | WAVELENGTH-TUNABLE EXTERNAL CAVITY LASER - Provided is a tunable external cavity laser. The tunable external cavity laser includes that a bragg grating hermetically packaged in a TO can, a superluminescent diode (SLD) using an optical source signal and an optical fiber. A lasing wavelength is decided when the optical source signal emitted from the SLD is reflected by the bragg grating and the lasing wavelength is output to the optical fiber through the SLD. | 03-25-2010 |
20100260223 | Quantum dot laser diode and method of fabricating the same - A quantum dot laser diode and a method of fabricating the same are provided. The quantum dot laser diode includes: a first clad layer formed on an InP substrate; a first lattice-matched layer formed on the first clad layer; an active layer formed on the first lattice-matched layer, and including at least one quantum dot layer formed of an InAlAs quantum dot or an InGaPAs quantum dot which is grown by an alternate growth method; a second lattice-matched layer formed on the active layer; a second clad layer formed on the second lattice-matched layer, and an ohmic contact layer formed on the second clad layer. | 10-14-2010 |
20110134512 | DOUBLE CLAD FIBER LASER DEVICE - Provided is a double clad fiber device. The double clad fiber device includes a double clad fiber, a pump combiner, at least one first laser diode, and at least one second laser diode. The double clad fiber includes a core and a clad. The pump combiner provides pump light to the core and the clad through one end of the double clad fiber, respectively. The at least one first laser diode provides first pump light to the clad through the pump combiner. The at least one second laser diode provides second pump light to the core through the pump combiner. | 06-09-2011 |
20110150016 | TUNABLE LASER MODULE - Provided is a tunable laser module emitting an optical signal having high speed, high power and wideband wavelength tuning. The tunable laser module includes a laser array configured to emit an optical signal having a plurality of different lasing wavelengths, a temperature controller configured to change a temperature of the laser array, and an optical integration device configured to modulate or amplify the optical signal at a side of the laser array opposing the temperature controller. | 06-23-2011 |
Jeon Keun Oh, Yuseong-Gu KR
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20150093604 | Safety Apparatus and Protection Method of Secondary Battery for Electric Vehicle Using Switch - The present invention relates to a safety apparatus and a protection method of a secondary battery, which can prevent explosion and fire of the secondary battery using a switch or a rupture switch attached on the outside of the secondary battery if a swelling degree of the secondary battery reaches a predetermined value when the secondary battery is swelled due to abnormal usage such as overcharge, short-circuit, reverse-connection and heat-exposure of large-capacity lithium polymer battery. | 04-02-2015 |
Sei-Ryang Oh, Yuseong-Gu KR
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20120308676 | ANTIVIRAL COMPOSITION CONTAINING AN ALEURITES FORDII OR DAPHNE KIUSIANA EXTRACT OR A FRACTION THEREOF AS AN ACTIVE INGREDIENT - The present invention relates to an antiviral composition containing an | 12-06-2012 |
Tae Kwang Oh, Yuseong-Gu KR
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20080248960 | MICROFLUIDIC ARRAY SYSTEM FOR BIOLOGICAL, CHEMICAL, AND BIOCHEMICAL ASSESSMENTS - The system and method of the present application is a microfluidic array system for biological, chemical and biochemical assessments including a microfluidic chip for reaction assays, wherein the microfluidic chip includes a control layer and a fluidic layer, wherein the control layer is pressurized through pneumatic or hydraulic means in order to control the flow of the reagents in the fluidic layer. The system and method of the present application further includes a method of fabricating such a microfluidic chip, and further a method for operating the same. Lastly, the system and method of the present application further includes a system for operating and analyzing the microfluidic array including a pressure source, a fluidic source, a biochip reader, and a processor configured to control the same. | 10-09-2008 |
Young Se Oh, Yuseong-Gu KR
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20140346085 | METHOD OF PREPARING PITCH FOR CARBON FIBER - Disclosed herein is a method of preparing an isotropic pitch for carbon fiber having a high softening point, and more particularly, a method of preparing an isotropic pitch for carbon fiber by mixing petroleum residues with C9 fraction to form a mixture and then heating the mixture to perform heat polymerization. With the method of preparing an isotropic pitch according to the present invention, a separate catalyst is not required, and the isotropic pitch for carbon fiber having a low softening point may be prepared with a high yield even at a relatively low temperature. | 11-27-2014 |