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 |
20100104968 | Polymerized toner having high resolution - A polymerized toner is provided. The polymerized toner comprises a reactive anionic surfactant having at least one reactive functional group. The reactive anionic surfactant is added simultaneously with a dispersant to prepare an aqueous dispersion or is added within 2 hour after a polymerization reaction of a monomer mixture is initiated in an aqueous dispersion. This simultaneous or rapid addition allows the reactive anionic surfactant to be dispersed on the surface of the toner particles. The reactive anionic surfactant is located over the entire surface of the toner particles to increase the surface charge density of the toner, achieving good charge stability and excellent imaging characteristics. | 04-29-2010 |
20110046277 | PHOTOSENSITIVE POLYIMIDE AND PHOTOSENSITIVE RESIN COMPOSITION COMPRISING THE SAME - The present invention relates to polyimide or precursor thereof represented by Chemical Formula 1 or 2 and a photosensitive resin composition including the same. The polyimide or precursor thereof are fabricated using diamine comprising polyalkyleneoxide. The photosensitive resin composition of the present invention has excellent light transmissivity, an excellent resolution, and excellent photo sensitivity and image forming performance. Further, the photosensitive resin composition has high adhesiveness with substrates, such as a silicon film, a silicon oxide film, and a metal film. In particular, an excellent film without failure, such as crack, can be formed. | 02-24-2011 |
20110117332 | ACRYLATE RESIN, PHOTORESIST COMPOSITION COMPRISING THE SAME, AND PHOTORESIST PATTERN - Disclosed are an acrylate resin included in a chemically amplified photoresist composition for forming a thick film, a chemically amplified photoresist composition including the same, and a photoresist pattern fabricated therefrom. The photoresist composition including the acrylate resin can achieve an improvement of sensitivity without damaging major characteristics such as compatibility (dispersion stability), spreading characteristics, developing characteristics, and resolution. In addition, a thick resist pattern can be formed with such a composition, and the pattern can have excellent sensitivity, developing characteristics, pattern characteristics, crack resistance, and plating resistance. | 05-19-2011 |
20110223538 | PHOTOSENSITIVE ORGANIC INSULATOR COMPOSITION FOR OLED DEVICE - Polyimide or a precursor thereof represented by Chemical Formula 1 or 2 and a photosensitive organic insulator composition having the same are disclosed. The polyimide or the precursor thereof is prepared from diamine including polyalkyleneoxide. The use of the photosensitive organic insulator composition can allow for low temperature curing and shorten a curing time, form a low taper angle, and implement a high sensitivity and high residual film. Also, since the photosensitive organic insulator composition, as a positive photosensitive composition, has excellent solubility with respect to an alkali solution of an exposed portion, the generation of impurity can be minimized. | 09-15-2011 |
20110274853 | NEGATIVE PHOTORESIST COMPOSITION AND PATTERNING METHOD FOR DEVICE - The present invention relates to a negative photoresist composition and a patterning method for device in which a photoresist pattern having a high sensitivity with a good reverse taper profile can be formed not only to realize an effective patterning of various thin films but also to facilitate removal of the photoresist pattern after the patterning. The photoresist composition comprises an alkali-soluble binder resin; a halogen-containing first photo-acid generator; a triazine-based second photo-acid generator; a cross-linking agent having an alkoxy structure; and a solvent. | 11-10-2011 |
20150024327 | NEGATIVE PHOTORESIST COMPOSITION AND PATTERNING METHOD FOR DEVICE - The present invention relates to a negative photoresist composition and a patterning method for device in which a photoresist pattern having a high sensitivity with a good reverse taper profile can be formed not only to realize an effective patterning of various thin films but also to facilitate removal of the photoresist pattern after the patterning. The photoresist composition comprises an alkali-soluble binder resin; a halogen-containing first photo-acid generator; a triazine-based second photo-acid generator; a cross-linking agent having an alkoxy structure; and a solvent. | 01-22-2015 |
Patent application number | Description | Published |
20130242460 | MULTILAYER CERAMIC ELECTRONIC COMPONENT AND METHOD OF MANUFACTURING THE SAME - There are provided a multilayer ceramic electronic component and a method of manufacturing the same, the multilayer ceramic electronic including: a ceramic body; and a plurality of internal electrodes laminated within the ceramic body, wherein, when T1 is the greatest distance between an upper outermost internal electrode and a lower outermost internal electrode among the plurality of internal electrodes and T2 is the distance between the highest point and the lowest point in each of the upper outermost internal electrode and the lower outermost internal electrode in a thickness direction of the ceramic body, T2/T1<0.05 is satisfied, and thus, defects in alignment of internal electrodes of the multilayer ceramic electronic component may be suppressed. | 09-19-2013 |
20140160617 | MULTILAYER CERAMIC CAPACITOR AND METHOD OF MANUFACTURING THE SAME - There is provided a multilayer ceramic capacitor, and a method of manufacturing the same, the multilayer ceramic capacitor including: a ceramic body; a first internal electrode; a second internal electrode; a first external electrode; a second external electrode; and an insulating layer. | 06-12-2014 |
20140240895 | MULTILAYER CERAMIC CAPACITOR AND METHOD OF MANUFACTURING THE SAME - A multilayer ceramic capacitor includes a ceramic body having dielectric layers laminated therein; an active layer including first and second internal electrodes alternately exposed through end surfaces of the ceramic body having the dielectric layer interposed therebetween; upper and lower cover layers formed above and below the active layer; first and second external electrodes formed on end surfaces of the ceramic body, respectively; first and second dummy patterns extended from the first and second external electrodes into margin portions of the active layer in a length direction, respectively; and first and second dummy electrodes opposing each other in a length direction within the upper and lower cover layers, the first and second dummy electrodes being extended inwardly from the first and second external electrodes. | 08-28-2014 |
20140345925 | MULTILAYER CERAMIC CAPACITOR AND MOUNTING BOARD THEREFOR - There is provided a multilayer ceramic capacitor including: a ceramic body including dielectric layers and satisfying T/W>1.1 when a width thereof is defined as W and a thickness thereof is defined as T; first internal electrodes each having a first lead part exposed to at least one side surface of the ceramic body; second internal electrodes each having a second lead part exposed to the at least one side surface of the ceramic body; first and second external electrodes electrically connected to the first lead part and the second lead part, respectively, and extended from the side surface of the ceramic body to which the first lead part and the second lead part are exposed to at least one of the first and second main surfaces; and an insulating layer formed to cover the first and second external electrodes formed on the first and second side surfaces. | 11-27-2014 |
20140360764 | MULTILAYER CERAMIC CAPACITOR AND BOARD FOR MOUNTING THE SAME - A multilayer ceramic capacitor includes a ceramic body including dielectric layers; first and second internal electrode groups disposed to be misaligned by a predetermined interval in the length direction, having the dielectric layers interposed therebetween; first and second external electrodes extended from at least one of the first and second side surfaces to at least one of the first and second main surfaces; and an insulating layer covering portions of the first and second external electrodes formed on the at least one of the first and second side surfaces, wherein the first internal electrode group includes first and second internal electrodes including first and second pattern parts and first and second lead parts, respectively, and the second internal electrode group includes third and fourth internal electrodes including third and fourth pattern parts and third and fourth lead parts, respectively. | 12-11-2014 |
20140362492 | MULTILAYER CERAMIC ELECTRONIC COMPONENT AND METHOD OF MANUFACTURING THE SAME - There is provided a multilayer ceramic electronic component, including: a ceramic body in which a plurality of dielectric layers are stacked; a plurality of first and second internal electrodes alternately exposed through both end surfaces of the ceramic body, having respective ones of the dielectric layers interposed therebetween, and being placed alternately to the left and to the right in a width direction of the ceramic body to be offset from one another, when the ceramic body is viewed in a width-thickness cross-sectional direction; and first and second external electrodes formed on the end surfaces of the ceramic body and electrically connected to the first and second internal electrodes, respectively. | 12-11-2014 |
20140376151 | METHOD OF MANUFACTURING MULTILAYER CERAMIC ELECTRONIC COMPONENT AND MULTILAYER CERAMIC ELECTRONIC COMPONENT MANUFACTURED THEREBY - There is provided a method of manufacturing a multilayer ceramic electronic component, the method including: preparing a ceramic multilayer body by stacking and sintering ceramic green sheets having internal electrodes formed thereon; determining whether or not a distance d | 12-25-2014 |