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Jung, Ulsan
Inrak Jung, Ulsan KR
| Patent application number | Description | Published |
|---|---|---|
| 20110092628 | High Heat and Chlorine Resistant Polyurethaneurea Elastic Fiber and Preparation of Thereof - The present invention relates to a preparation method of polyurethaneurea elastic fiber, particularly a preparation method of high heat-resistant elastic fiber which retains unique physical properties of elastic fiber under the high temperature process. The polyurethaneurea elastic fiber of the present invention is characteristically prepared without using 1 functional mono-alcohol generally used to regulate the reaction speed and side-reaction during the prepolymer reaction to produce elastic fiber having excellent heat-resistance particularly for the dyeing processing or re-dyeing of polyester but using ethylenediamine alone as a chain extender for the polymerization. To reduce gel formation in polymer after the secondary polymerization and to regulate change of viscosity in the course of process, the ratio of the chain extender amine to the terminal group of prepolymer of the first polymerization is increased. | 04-21-2011 |
Jangwon Jung, Ulsan KR
| Patent application number | Description | Published |
|---|---|---|
| 20090293769 | BLUE PHTHALOCYANINE PIGMENT COMPOSITION AND ITS PREPARATION - The invention pertains to pigment compositions comprising from 70 to 93%, preferably from 81 to 93%, of e copper phthalocyanine, from to 18% of an aminomethyl-substituted phthalocyanine, from 2 to 15% of an ammonium sulfonato phthalocyanine and less than 2% of other phthalocyanine compounds, preferably 5 made by wet-milling a mixture of a copper phthalocyanine and e copper phthalocyanine together with the aminomethyl-substituted phthalocyanine and a milling aid in an organic liquid and adding the ammonium sulfonato phthalocyanine before the milling aid and the organic liquid are separated from the wet-milled mixture. | 12-03-2009 |
Ji Hyun Jung, Ulsan KR
| Patent application number | Description | Published |
|---|---|---|
| 20100279473 | THIN FILM TRANSISTOR SUBSTRATE AND FABRICATING METHOD THEREOF - A thin film transistor substrate and a fabricating method that includes an opening hole that separates a gate shorting line connected to a gate shorting bar used upon a lighting-inspecting of a gate line into an odd and an even gate shorting line is provided. | 11-04-2010 |
| 20110097857 | ARRAY SUBSTRATE FOR LIQUID CRYSTAL DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME - An array substrate for a liquid crystal display device includes a gate line and a data line crossing each other on a substrate to define a pixel region, an insulating layer between the gate line and the data line, a gate electrode extending from the gate line, and a transistor in the pixel region having an active layer on the insulating layer, ohmic contact layers of a first material that are adjacent to ends of the active layer, buffer layers of a second material, which is different from the first material, on the ohmic contact layers, a source electrode contacting one of the buffer layers and a drain electrode contacting another one of the buffer layers, wherein the active layer is in an island shape over the gate electrode and within a boundary defined by a perimeter of the gate electrode. | 04-28-2011 |
| 20110212581 | ARRAY SUBSTRATE FOR LIQUID CRYSTAL DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME - An array substrate for a liquid crystal display device comprises a substrate having a pixel region, a gate line on the substrate, and a data line crossing the gate line to define the pixel region. A thin film transistor (TFT) includes a gate electrode connected to the gate line, an insulating layer on the gate electrode, an active layer on the insulating layer, an ohmic contact layer on the active layer, a source electrode connected to the data line and a drain electrode spaced apart from the source electrode. A pixel electrode connects to the drain electrode and is disposed in the pixel region. An opaque metal pattern is provided on end portions of the pixel electrode. | 09-01-2011 |
Jin Yul Jung, Ulsan KR
| Patent application number | Description | Published |
|---|---|---|
| 20080283210 | METHOD OF MANUFACTURING CYLINDER HEAD SYSTEM FOR VEHICLE - A method for manufacturing a cylinder head system for a vehicle includes manufacturing a first main mold having an exhaust manifold mold and a first water jacket mold; manufacturing a second main mold having a second water jacket mold; and assembling the first main mold to the second main mold. The exhaust manifold mold is configured to form an exhaust manifold, the first water jacket mold is configured to form a first water jacket for cooling the exhaust manifold, and the second water jacket mold is configured to form a second water jacket for cooling a cylinder block. | 11-20-2008 |
| 20100230068 | METHOD AND MOLD FOR MANUFACTURING CYLINDER HEAD SYSTEM FOR VEHICLE - A method for manufacturing a cylinder head system for a vehicle includes manufacturing a first main mold to integrally form an exhaust manifold for discharging exhaust gas from a cylinder and a first water jacket for cooling the exhaust manifold, manufacturing a second main mold to form a second water jacket for cooling a cylinder block, and connecting the first main mold to the second main mold. The mold includes a first main mold having a plurality of exhaust manifold molds and a first water jacket mold, each exhaust manifold mold being configured to form a respective exhaust manifold, and the first water jacket mold being configured to form a first water jacket for cooling the exhaust manifolds, a second main mold having a second water jacket mold, the second water jacket mold being configured to form a second water jacket for cooling a cylinder block, and the second main mold being configured to be assembled with the first main mold. The first water jacket mold may be disposed between the exhaust manifold molds. | 09-16-2010 |
Moon-Ho Jung, Ulsan KR
| Patent application number | Description | Published |
|---|---|---|
| 20120024408 | APPARATUS FOR JETTING COMPRESSED AIR, AND METHOD FOR MANUFACTURING SAME - Provided is an apparatus for jetting compressed air and a method of manufacturing the apparatus. The apparatus includes: an air intake pipe having a discharge hole, through which compressed air received from outside the apparatus is discharged, formed on an outer surface having a curved or multilateral shape; and an amplifying unit having a contact surface combining to the outer surface by having a curved or multilateral shape corresponding to the outer surface, and including an inlet portion wherein an inlet hole corresponding to the discharge hole is formed on the contact surface, and an outlet portion for amplifying and discharging the compressed air received through the inlet hole on the contact surface. As such, by forming the contact surface of the amplifying unit to have a curved or multilateral shape corresponding to the outer surface of the air intake pipe, the contact surface of the amplifying unit and the outer surface of the air intake pipe may be closely and uniformly bound together. Accordingly, the flow of the compressed air flowing into the amplifying unit through the air intake pipe may be constant and the compressed air may be prevented from being lost to outside the apparatus, and thus jetting efficiency of the compressed air discharged through the amplifying unit may be increased while instantly jetting a large amount of air by discharging surrounding air with the compressed air. | 02-02-2012 |
Woo Cheul Jung, Ulsan KR
| Patent application number | Description | Published |
|---|---|---|
| 20090246673 | Method for Manufacturing a Toner Having Good Charging Characteristics - There is provided a toner having good charging characteristics that is composed of a core region and a thin shell in which a charge control agent is densely distributed so as to improve charging characteristics of the toner, and a method for manufacturing the same. The method for manufacturing a toner having a bi-layered structure includes: producing a toner core using a suspension polymerization method; preparing a suspension of toner particles having a core-shell structure by forming a rigid shell on a surface of the toner core; and recovering the toner particles from the suspension as a post-processing operation. | 10-01-2009 |
| 20090280430 | Method for Manufacturing Toner - There is provided a method for manufacturing a toner capable of providing a toner having excellent low-temperature fixing property and anti-offset property by adjusting a molecular weight distribution of a polymerization toner to a narrow distribution range. The method is characterized in that a toner is polymerized using a reversible addition-fragmentation chain transfer polymerization (RAFT) method by adding a dithioacetate, xanthate or dithioester-based chain transfer agent in the polymerization of a toner. The method for manufacturing a toner comprises: dissolving a dispersant in water to prepare an aqueous dispersion solution; mixing a binder resin monomer, a charge control agent, a pigment, a wax and a dithioacetate, xanthate or dithioester-based chain transfer agent to prepare a monomer mixture; adding the monomer mixture to the aqueous dispersion solution and suspension-polymerizing the monomer mixture to form a toner composition; removing the dispersant from the toner composition; and drying the dispersant-free toner composition under a vacuum condition. | 11-12-2009 |
| 20100129749 | POLYMERIZED TONER AND METHOD OF PRODUCING THE SAME - A polymerized toner is provided. The polymerized toner has cores containing a wax with a polydispersity of 1.05 to 1.1. The fixability of the polymerized toner is improved by the presence of the wax. Further provided is a method of producing the polymerized toner. | 05-27-2010 |
Young Jae Jung, Ulsan KR
| Patent application number | Description | Published |
|---|---|---|
| 20110174805 | WEAVING TORCH DEVICE FOR AUTO WELDING - The present invention relates a weaving torch device for auto welding that can maintain necessary molten metal for desired welding such as welding by a person and provide the best welding beads, by locking a hinge pin and a conveying pin, which are provided to both sides of a weaving torch of a torch device connected to a welding machine, to a locking protrusion and a locking step of a hinge support member of a lower case in order to prevent left/right conveying while the weaving torch is automatically reciprocated up/down by operation of an electromagnet and a conveying spring. | 07-21-2011 |