Patent application number | Description | Published |
20100079548 | INKJET PRINTHEAD AND METHOD OF MANUFACTURING THE SAME - An inkjet printhead to prevent clogging of nozzles and spreading of ink during ejection, and a method of manufacturing the inkjet printhead. The inkjet printhead includes a substrate, a substrate, a passage forming layer formed on the substrate, and a nozzle layer formed on the passage forming layer and including a material including an epoxy group or a hydroxyl group, wherein the epoxy group or the hydroxyl group is protected by an alcohol-protecting group. | 04-01-2010 |
20100173242 | ELECTROPHOTOGRAPHIC TONER AND METHOD OF PREPARING THE SAME - An electrophotographic toner which includes a latex, a colorant, and a releasing agent, wherein characteristics of the electrophotographic toner measured by using a Fourier transform infrared spectroscopy in an attenuated total reflection mode (FT-IR-ATR), in which an incidence angle is changeable, satisfy Inequalities 1 through 3 presented herein. | 07-08-2010 |
20110196051 | Electrolyte membrane using polybenzoxazine based compound - An electrolyte membrane includes a cross-linked reaction product of a benzoxazine monomer and a cross-linkable compound. The electrolyte membrane is impregnated with 300 to 600 parts by weight of phosphoric acid based on 100 parts by weight of the electrolyte membrane, and has a yield strain 0.5% or less, and a yield stress 0.3 Mpa or less. The cross-linked material has a strong acid trapping ability with respect to the benzoxazine compound and excellent mechanical properties due to a cross-linkage. Also, the solubility of the cross-linked material in polyphosphoric acid is low, thereby showing excellent chemical stability. Accordingly, when the cross-linked material is used, an electrolyte membrane having an excellent liquid supplementing ability and excellent mechanical and chemical stability at a high temperature can be obtained. The cross-linked material can be obtained by a simple polymerization process by combining a benzoxazine monomer and a crosslinkable compound and by using heat instead of using a polymerization initiator or a cross-linking agent. | 08-11-2011 |
20110217627 | COMPOSITION, METHOD OF PREPARING THE COMPOSITION, ELECTRODE INCLUDING THE COMPOSITION, AND FUEL CELL INCLUDING THE ELECTRODE - A composition containing a uniformly dispersed polyoxazine-based compound, a method of preparing the composition, an electrode including the composition, and a fuel cell including the electrode. | 09-08-2011 |
20120070765 | POLYBENZOXAZINE-BASED COMPOUND, ELECTROLYTE MEMBRANE INCLUDING THE SAME, AND FUEL CELL EMPLOYING THE ELECTROLYTE MEMBRANE - A method of preparing an electrolyte membrane comprising a crosslinked object of a polybenzoxazine-based compound formed of a polymerized resultant product of a first monofunctional benzoxazine-based monomer or a second benzoxazine-based monomer multifunctional benzoxazine-based monomer with a crosslinkable compound. | 03-22-2012 |
20120071611 | POLYBENZOXAZINE-BASED COMPOUND, ELECTROLYTE MEMBRANE INCLUDING THE SAME, AND FUEL CELL EMPLOYING THE ELECTROLYTE MEMBRANE - A crosslinked object of a polybenzoxazine-based compound formed of a polymerized resultant of a first monofunctional benzoxazine-based monomer or a second multifunctional benzoxazine-based monomer with a crosslinkable compound, an electrolyte membrane including the crosslinked object, a method of preparing the electrolyte membrane, and a fuel cell employing the electrolyte membrane including the crosslinked object. | 03-22-2012 |
20120088163 | LITHIUM ION CONDUCTOR, METHOD OF PREPARING THE SAME, AND LITHIUM AIR BATTERY INCLUDING THE LITHIUM ION CONDUCTOR - A lithium ion conductor, a method of preparing the same, and a lithium air battery including the lithium ion conductor. The lithium ion conductor includes a phosphorus-based compound having a characteristic peak at a Raman shift of about 720˜770 cm | 04-12-2012 |
20120231605 | METHOD OF FABRICATING SEMICONDUCTOR DEVICE INCLUDING A RECESSED CHANNEL - A method including forming an isolation trench; forming first and second liners on the isolation trench; filling the isolation trench an insulating material to form an isolation region and an active region; forming a preliminary gate trench including a first region across the isolation region to expose the first liner, the second liner, and the insulating material, and a second region across the active region to expose a portion of the substrate, the first region having a first sidewall with a planar shape, and the second region having a second sidewall with a concave central area such that an interface between the first and second regions has a pointed portion; removing a portion of the first liner exposed by the first region to form a dent having a first depth by which the pointed portion protrudes; removing the pointed portion to form a gate trench; and forming a gate electrode. | 09-13-2012 |