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Hyun Sung
Hyun Sung Kim, Daejeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20100210468 | METHOD FOR JOINING SECOND-GENERATION HIGH-TEMPERATURE SUPERCONDUCTING WIRES BY MELTING DIFFUSION - Provided is a method for joining two strands of second-generation high-temperature superconducting wire, each of which includes a substrate, a buffer layer, a superconducting layer and a stabilizer layer. The method comprises: partially removing each of the stabilizer layers to expose a portion of the superconducting layer; bringing the exposed portions of the superconducting layers into contact with each other and fixing the superconducting layers to each other; heating the strands of superconducting wire to the melting point of the superconducting layers to melt-diffuse the superconducting layers in contact with each other and to join the strands of superconducting wire together; and oxidizing the junction between the strands of superconducting wire in an oxygen atmosphere (‘oxygenation annealing’). The oxygenation annealing restores the superconducting properties of the superconducting wires lost during the melting diffusion. According to the method, the superconducting layers are brought into direct contact with each other without any mediating material therebetween, followed by melting diffusion. Accordingly, the method enables the fabrication of sufficiently long superconducting wires without any substantial contact resistance, compared to non-superconducting joining. Particularly, the oxygen partial pressure is adjusted to a pressure close to a vacuum during the melting diffusion to lower the eutectic melting point of the superconductors, so that the superconducting wires can be joined together while protecting the constituent layers (e.g., the stabilizer layers containing silver (Ag)) from melting. | 08-19-2010 |
Hyun Sung Kim, Anyang-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090291046 | UNIFORMLY B-ORIENTED MFI ZEOLITE MEMBRANE WITH VARIABLE THICKNESS SUPPORTED ON SUBSTRATE AND PREPARATION METHOD THEREOF - A b-oriented MFI zeolite membrane with variable thickness is provided. The MFI zeolite membrane is composed of zeolite crystals whose b-axes are all uniformly oriented perpendicular to a substrate. Further provided is a method for preparing the MFI zeolite membrane. The method comprises forming zeolite or zeotype molecular sieve seeds with different thicknesses on a substrate and adding the seeded substrate to a gel for the synthesis of an MFI zeolite containing a structure-directing agent to grow zeolite or zeotype molecular sieve crystals thereon. The MFI zeolite membrane overcomes the limitations of prior art zeolite membranes to maximize its applicability. | 11-26-2009 |
Hyun Sung Kim, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20090206341 | Solution-processed high mobility inorganic thin-film transistors - Fluid media comprising inorganic semiconductor components for fabrication of thin film transistor devices. | 08-20-2009 |
Hyun Sung Ko, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20100260643 | PORTABLE MEASUREMENT SYSTEM HAVING BIOPHOTONIC SENSOR - There is provided a portable measuring system having a biophotonic sensor. The portable measuring system also includes a tunable light source, an output intensity detector and an output wavelength detector, which are mounted therein. The portable measuring system can precisely measure a variation in the reflectivity spectrum and/or the transmittance spectrum of the biophotonic sensor before and after an antigen-antibody reaction by varying the wavelength of the tunable light source. Thus, the concentration of the antigen is precisely measured. | 10-14-2010 |
| 20100309937 | WAVELENGTH TUNABLE SEMICONDUCTOR LASER APPARATUS - A semiconductor laser apparatus is provided which can vary an output wavelength of a light source. A semiconductor laser diode and one or more heat source devices arranged around the semiconductor laser diode are integrated on one substrate. The semiconductor laser diode is configured to be uniformly heated by the heat source device. An output wavelength of the semiconductor laser diode can be easily and quickly varied. | 12-09-2010 |
| 20110129846 | PHOTONIC BIOSENSOR, PHOTONIC BIOSENSOR ARRAY, AND METHOD OF DETECTING BIOMATERIALS USING THE SAME - A photonic biosensor, a photonic biosensor array, and a method of detecting a bio-material using the same are provided. The photonic biosensor includes a light emitting diode configured to emit light, a photodiode (PD), an optical fiber configured to connect the light emitting diode with the PD, and a micro-fluidic channel disposed on the optical fiber. Bio-antibodies or aptamers are fixed to the surface of the optical fiber, and the micro-fluidic channel includes gold (Au) nanoparticles to which bio-antibodies or aptamers are fixed. The photonic biosensor may be configured using absorption of surface plasmons in Au nanoparticles with respect to light traveling through the surface of the optical fiber configured to connect the light emitting diode with the PD, thus simplifying the manufacture of the biosensor and reducing the manufacturing cost. | 06-02-2011 |
| 20110136691 | GOLD-SILVER ALLOY NANOPARTICLE CHIP, METHOD OF FABRICATING THE SAME AND METHOD OF DETECTING MICROORGANISMS USING THE SAME - Provided are a gold-silver alloy nanoparticle chip, a method of fabricating the same and a method of detecting microorganisms using the same. The gold-silver alloy nanoparticle chip includes a hydrophilized glass substrate, a self-assembled monolayer formed on the glass substrate, and gold-silver alloy nanoparticles fixed on the self-assembled monolayer. The gold-silver alloy nanoparticle chip having such a structure enables microorganisms in a water purifier and tap water to be readily detected and enables detection efficiency to be enhanced. | 06-09-2011 |
Hyun Sung Paing, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20090184554 | PUMPING DEVICE AND HEIGHT ADJUSTER FOR VEHICLE SEAT - A pumping device and a height adjuster for a vehicle seat are disclosed. The pumping device comprises a support plate; a cam receiver accommodated in the support plate; a brake cam received in the cam receiver to be integrally rotated with the shaft, and defining receiving spaces between the brake cam and the cam receiver; locking means received in each receiving space to allow and prevent rotation of the brake cam in the cam receiver; a control plate for applying the pushing force to the locking means; a bidirectional clutch coupled to the control plate if rotating force is applied and returned to a state of being decoupled from the control plate if the rotating force is not applied; a cover plate assembled with the support plate; a lever plate provided outside the cover plate; and elastic returning means for returning the lever plate to a predetermined reference position. | 07-23-2009 |
| 20100259061 | Latch Assembly For Vehicle Seat - A latch assembly for vehicle seat comprising a base having a receiving pocket accommodating a striker of a vehicle body part, a catch rotatably coupled to the base rotating between a locking position where the catch supports the striker and an unlocking position where the catch allows the striker to escape, a damping plate rotatably coupled to the base with the same rotating axis as the catch elastically pressing catch to rotate to the unlocking position and having a damping surface elastically pressing and supporting the striker, a pawl plate rotatably coupled to base having a pressing surface pressing the catch rotated to the locking position, a pawl rotatably coupled to base having the same rotating axis as the pawl plate and having a supporting surface supporting catch preventing further rotation if the catch at locking position rotates passing the pressing surface of pawl plate due to an outer impact. | 10-14-2010 |
Hyun Sung Paing, 12595324 KR
| Patent application number | Description | Published |
|---|---|---|
| 20110175388 | LATCH ASSEMBLY FOR VEHICLE SEAT - A latch assembly for a vehicle seat is provided. The latch assembly for the vehicle seat which includes a base plate, a latch which is rotatably coupled to the base plate to rotate between a locking position and an open position, and a pawl and a pawl plate which are coaxial with the base plate and coupled to be overlapped each other to interact with each other to rotate, includes: the latch including a locking surface; the pawl plate including a pressing surface which presses the locking surface when the latch is positioned at the locking position, and a first supporting surface which supports the locking surface when the latch rotates by means of an impact; and the pawl including a second supporting surface which supports the locking surface together with the pawl plate when the latch rotates by means of the impact. Thus, the present invention provides a latch assembly for a vehicle seat having an improved configuration which enables a convenient handling and is capable of smoothly operating although there is a coupling condition error, and stably maintaining a coupling state in spite of an external impact against a chassis. | 07-21-2011 |