Patent application number | Description | Published |
20080207934 | METHOD FOR PRODUCING METAL NANOPARTICLES AND METAL NANOPARTICLES PRODUCED THEREBY - The present invention relates to a method for producing metal nanoparticles and metal nanoparticles produced thereby, in particular, to a method for producing metal nanoparticles used for inkjet that comprises, preparing metal nanoparticles capped with a fatty acid; heating a mixture of the capped metal nanoparticles and a linear or branched first amine of C1-C7 so that a part of the fatty acid is substituted to the first amine; and heating after adding a linear or branched second amine of C | 08-28-2008 |
20080266355 | Inkjet head and manufacturing method thereof - An ink-jet head and method of manufacturing the ink-jet head are disclosed. For an ink-jet head including a chamber containing an ink supplied through a channel, a membrane covering the chamber, and a nozzle jetting the ink, the manufacturing method may include forming the chamber by etching a portion of one side of a first substrate; forming the channel connected with the chamber by etching a portion of the other side of the first substrate; and bonding a second substrate to the one side of the first substrate such that the chamber is covered. This allows greater ease in manufacturing, while reducing the risk of damage in the wafer and increasing yield. Furthermore, the thickness of the chamber may be reduced regardless of the thickness of the chamber, which can improve the reaction speed to signals and improve frequency characteristics. | 10-30-2008 |
20080266360 | Ink-jet head and manufacturing method thereof - An ink-jet head and a method of manufacturing the ink-jet head are disclosed. The ink-jet head may include: an upper substrate, formed by processing a chamber in a silicon substrate; a middle substrate, bonded to the upper substrate and formed by processing an ink channel, which connects with the chamber, in a glass substrate; and a lower substrate, bonded to the middle substrate and formed by processing a nozzle, which connects with the ink channel, in a silicon substrate. With certain embodiments of the invention, a high level of precision may be obtained for the structures formed in the upper substrate and the lower substrate, and the middle substrate may be manufactured in low cost. Also, the substrates may be bonded together in a facilitated manner, so that production yield may be increased. | 10-30-2008 |
20080266365 | Ink-jet head - An ink-jet head is disclosed. The ink-jet head may include: a chamber containing an ink; a reservoir connected with the chamber to supply the ink to the chamber; a restrictor connected with the chamber and the reservoir to control a flow of the ink; a nozzle connected with the chamber to jet the ink, and located at a position corresponding to where a pressure supplied to the chamber is the maximum; and an actuator supplying a pressure to the chamber such that the ink is jetted. The ink-jet may be operated with a lower driving voltage, and the ink may be jetted in a more stable manner. | 10-30-2008 |
20080311312 | Method for surface treatment of substrate and method for forming fine wiring - The present invention related to a method for surface treatment and a method for forming fine wiring and more particularly, to a method for surface treatment of a substrate, including: preparing a substrate on which a fine wiring is to be formed; and treating the surface of the substrate with a fluorine containing liquid having a low boiling point, and a method for forming fine wiring using the same method. According to the present invention, not only the spreading of ink droplets but also the deterioration of the interface adhesion is avoided. | 12-18-2008 |
20090020504 | Method for manufacturing ink-jet head - A method for manufacturing an ink-jet head is disclosed. The method for manufacturing an ink-jet head including a chamber containing an ink, a reservoir connected with the chamber and supplying the ink to the chamber, a restrictor connected with the chamber and the reservoir and controlling a flow of the ink, a nozzle connected with the chamber and jetting the ink, and a channel connecting the nozzle to the chamber, may include: forming the chamber, the reservoir, the restrictor and the channel by etching a portion of a substrate; covering the chamber; and bonding a nozzle plate, in which a nozzle is formed, to the substrate such that the channel is covered. Using this method, the various structures of the ink-jet head may be formed by etching a substrate, whereby the process may be simplified, and the yield and reliability of the products can be improved. | 01-22-2009 |
20090025510 | Method for manufacturing nickel nanoparticles - The present invention relates to a method for manufacturing nickel nanoparticles and more particularly to a method including preparing a mixture solution by adding a reducing agent, a dispersing agent and a nickel salt to a polyol; stirring and heating the mixture solution; and producing nickel nanoparticles by reacting the mixture solution, so that it allows mass production of nickel nanoparticles having uniformity of size 30 to 50 nm and high dispersibility. | 01-29-2009 |
20090073241 | Inkjet head and manufacturing method of the same - A method of manufacturing an inkjet head that includes: forming in a first board an inlet, which penetrates the first board and through which ink may flow in, and a pressure chamber, which is formed as a recess in a surface of the first board; forming in a second board a manifold, which is to be connected with the inlet, a pressure absorbing space, which is positioned adjacent to the manifold and partitioned by a membrane, and an ink channel, which penetrates the second board and which is to be connected with the pressure chamber; forming in a third board a nozzle, which is to be connected with the ink channel; and stacking in order and attaching the first board, the second board, and the third board. This method can be utilized to simplify the manufacturing process and prevent crosstalk between pressure chambers, thereby providing a higher printing quality. | 03-19-2009 |
20090085972 | Nozzle plate, inkjet head, and manufacturing method of the same - A nozzle plate, inkjet head a manufacturing method of the same are disclosed. By using a method of manufacturing a nozzle plate which includes: forming a nozzle by selectively etching one side of a plate substrate, forming a straight portion connecting with the nozzle by selectively etching the other side of the plate substrate, and forming a hydrophobic layer on the one side of the plate substrate, where a window is formed in the hydrophobic layer that opens the nozzle by a circumference greater than a circumference of an end of the nozzle, the meniscus of ink can be formed to a greater size around the nozzle exit, thereby preventing degradations in ink ejection performance due to the vaporization of the solvent, and preventing blockage in the nozzles due to the clogging of particles. | 04-02-2009 |
20090085982 | Inkjet head and manufacturing method thereof - An inkjet head and a manufacturing method thereof are disclosed. A method of manufacturing an inkjet head, which is configured to eject ink through a nozzle using pressure provided to a pressure chamber, that includes: processing a board to form the pressure chamber and the nozzle; stacking a protective cover on a lower surface of the board, where a recess is formed in the protective cover in a portion corresponding to a position of the nozzle; coupling a piezoelectric component onto an upper surface of the board; and perforating the protective cover by removing the portion where the recess is formed, can be used to efficiently prevent the contamination of the nozzles, to improve the manufacturing yield of the inkjet head. | 04-02-2009 |
20090087548 | Method of forming circuit pattern - A method of forming a circuit pattern is disclosed. The method of forming a circuit pattern may include providing a substrate that has a porous layer formed on one side, ejecting a thermosetting metal ink using an inkjet head into the porous layer in correspondence to a circuit pattern, and applying heat to the ink and the porous layer to cure the ink and remove the porous layer. With this method, a fine-line circuit pattern can be implemented, and a desired thickness of the circuit pattern can be obtained, by using a porous layer in printing and by applying heat to cure the ink and remove the coating layer. | 04-02-2009 |
20090136874 | Method for manufacturing printed circuit board - A method of manufacturing a printed circuit board is disclosed. The method, which includes forming a base pattern over one side of a negative photoresist, exposing the one side, attaching an insulation layer on the one side, developing the negative photoresist such that the base pattern is uncovered, and forming a circuit pattern over the base pattern, can increase the thickness of the circuit pattern and strengthen the adhesion between the circuit pattern and the insulation layer. | 05-28-2009 |
20090223410 | METHOD FOR PRODUCING SILVER NANOPARTICLES AND CONDUCTIVE INK - A method of producing metal nanoparticles in a high yield rate and uniform shape and size, which is thus suitable for mass production. In addition, metal nanoparticles are provided that have superior dispersion stability when re-dispersed in various organic solvents, which thus suitable for use as a conductive ink having high conductivity. The method of producing nanoparticles includes mixing a metal precursor with a copper compound to a hydrocarbon based solvent, mixing an amine-based compound to the mixed solution of the metal precursor with copper compound and hydrocarbon based solvent, and mixing a compound including one or more atoms having at least one lone pair, selected from a group consisting of nitrogen, oxygen, sulfur and phosphorous to the mixed solution of the amine-based compound, metal precursor with a copper compound and hydrocarbon based solvent. | 09-10-2009 |
20090233137 | Cell unit for a fuel cell and method for manufacturing the same - A cell unit for a fuel cell and a method for manufacturing the cell unit for a fuel cell are disclosed. The cell unit for a fuel cell can include an electrolyte membrane, an electrode unit that includes an anode formed on one side of the electrolyte membrane and a cathode formed on the other side of the electrolyte membrane, and a porous current collector formed by coating a conductive material onto the porous surfaces of the electrode unit. | 09-17-2009 |
20090251519 | Ink-jet head and manufacturing method thereof - Disclosed are an ink-jet head and a manufacturing method thereof. The ink-jet head, which has a reservoir storing ink, a chamber being supplied with the ink from the reservoir, a restrictor connecting the reservoir to the chamber, and a nozzle discharging the ink, includes: a chamber plate, in which the chamber is formed; a vibration plate, which is laminated on an upper surface of the chamber plate to cover the chamber and in which a first coil is placed; a first middle plate, which is laminated on a lower surface of the chamber plate and in which the restrictor is formed, and a second coil is placed; and a lower plate part, which is laminated on a lower surface of the first middle plate and in which the reservoir and the nozzle are formed. | 10-08-2009 |
20090269559 | PRINTED CIRCUIT BOARD AND MANUFACTURING METHOD THEREOF - A printed circuit board and a method of manufacturing the printed circuit board are disclosed. The method of manufacturing the printed circuit board can include adhering a film to an insulation base, in which the film is configured to flatten a surface of the insulation base, thermosetting the film, and forming a circuit pattern on the film by way of ink-jetting. In accordance with the present invention, a surface of the insulation base can be flattened and the surface roughness thereof can be made uniform, so that the diffusivity of the circuit pattern can be controlled while printing a minute circuit pattern and an adhesive strength between the insulation base and the circuit pattern can be increased. | 10-29-2009 |
20090277674 | Printed circuit board and manufacturing method thereof - A printed circuit board and a manufacturing method thereof are disclosed. The method of manufacturing a printed circuit board can include: forming surface roughness on an insulation layer, coating a chemical compound onto the insulation layer that lowers the surface energy of the insulation layer, and forming a circuit pattern by inkjet printing on the insulation layer coated with the chemical compound. Certain embodiments of the invention can be utilized to improve adhesive strength between the insulation layer and the inkjet-printed circuit patterns, suppress spreading in the inkjet-printed circuit patterns to improve resolution, and reduce manufacturing costs by forming the circuits using inkjet printing. | 11-12-2009 |
20090286004 | METHOD OF FORMING PRINTED CIRCUIT PATTERN, FORMING GUIDE FOR PATTERN, AND GUIDE-FORMING INK - Disclosed are methods of forming a printed circuit pattern and forming a guide, and a guide-forming ink. The method of forming a printed circuit pattern in accordance with the present invention includes forming a guide by using guide-forming ink having a slip property, curing the formed guide by in-situ UV, and forming a printed circuit pattern on the inside of the cured guide by using metal ink. | 11-19-2009 |
20090286127 | Cell unit for a fuel cell and method for manufacturing the same - Disclosed are a cell unit for a fuel cell and a method for manufacturing the same. The cell unit for a fuel cell can include an electrolyte membrane; an electrode unit, comprising an anode being formed on one surface of the electrolyte membrane and a cathode being formed on the other surface of the electrolyte membrane; a current collector, being stacked on the electrode unit to be electrically connected to the electrode unit; and a conductive layer, being interposed between the electrode unit and the current collector to reduce a contact resistance between the electrode unit and the current collector. With the present invention, the cell unit for a fuel cell can reduce contact resistance between the anode and the cathode and the current collector. Accordingly, it can be possible to reduce the overall size of the fuel cell by reducing the required thickness of the end plate. | 11-19-2009 |
20090291331 | Cell unit for a fuel cell - A cell unit for a fuel cell can include an electrolyte membrane, an electrode unit that includes an anode formed on one side of the electrolyte membrane and a cathode formed on the other side of the electrolyte membrane, and a porous current collector formed by coating a conductive material onto the porous surfaces of the electrode unit. It can be possible to reduce the contact resistance between the electrodes (the anode and the cathode), and their respective current collector, to thereby increase current collection efficiency and it can also be possible to make the thickness of the end plates thinner than a conventional design without sacrificing performance, to thereby decrease the overall size of a fuel cell. | 11-26-2009 |
20100014105 | PROCESSING IMAGE DATA - A method of processing image data according to an embodiment of the present invention includes: setting a permissible pitch range for a distance between adjacent ink blots; arranging image data for the line pattern in an x-y coordinate system; selecting a first base point corresponding to one side of the image data for the line pattern; selecting a first determination point from the first base point, in which the first determination point is parallel to and separated from one side of the image data for the line pattern; determining whether a distance between the first base point and the first determination point is within the permissible pitch range; and storing a coordinate as print data if the distance between the first base point and the first determination point is within the permissible pitch range, in which the coordinate is located at a shortest distance from the first determination point. | 01-21-2010 |
20100020134 | INK-JET HEAD - An ink-jet head is disclosed. The ink-jet head in accordance with an embodiment of the present invention includes: a body, a plurality of chambers, which are formed inside the body such that the plurality of chamber accommodate ink, a plurality of actuators, which are coupled to one side of the body such that pressure is supplied to each of the plurality of chambers, a holding groove, which is formed on one side of the body, and a common electrode, which is interposed between the actuators and the body and in which a part of the common electrode is formed on in the holding groove such that the plurality of actuators are electrically connected to one another. The ink-jet head can prevent defective signal transduction of an actuator and crosstalk between chambers. | 01-28-2010 |
20100031774 | Apparatus and method for manufacturing metal nanoparticles - The present invention relates to an apparatus and a method of manufacturing metal nanoparticles, and more particularly to an apparatus including: a precursor supplying part which supplies a precursor solution of metal nanoparticles; a first heating part which is connected with the precursor supplying part, includes a reactor channel having a diameter of 1 to 50 mm, and is heated to the temperature range where any particle is not produced; a second heating part which is connected with the first heating part, includes a reactor channel having a diameter of 1 to 50 mm, and is heated to the temperature range where particles are produced; and a cooler which is connected with the second heating part and collects and cools metal nanoparticles produced at the second heating part which allows continuous mass production of metal nanoparticles. | 02-11-2010 |
20100050436 | METHOD OF MANUFACTURING INKJET HEAD - Disclosed is a method of manufacturing an inkjet head discharging ink. The method in accordance with an embodiment of the present invention can include: heating the inkjet head to a temperature over a melting point of a filler; filling the inkjet head with the filler such that a gap inside the inkjet head is filled with the filler; and discharging the filler out of the inkjet head such that the filler in the gap of the inkjet head remains. | 03-04-2010 |
20100051104 | Solar cell and manufacturing method thereof - Disclosed are a solar cell and a manufacturing method thereof. The solar cell in accordance with an embodiment of the present invention includes: a substrate having a plurality of holes formed on one surface thereof; a metal layer formed on an inner wall of the hole and on one surface of the substrate; a p-type semiconductor coated on the metal layer; an n-type semiconductor formed inside the hole and on one surface of the substrate; a transparent conductive oxide formed on the n-type semiconductor; and an electrode terminal formed on the p-type semiconductor and on the transparent conductive oxide. | 03-04-2010 |
20100053256 | INK SUCTION APPARATUS - An ink suction apparatus is disclosed. In accordance with an embodiment of the present invention, the ink suction apparatus, which sucks in residual ink of an inkjet head, includes: a suction nozzle, which sucks in the residual ink; a heater, which is adjacent to the suction nozzle and heats the suction nozzle to prevent the suction nozzle from being blocked by the residual ink; a nozzle cover, which is installed on the suction nozzle and opens and closes the suction nozzle to control sucking power of the suction nozzle; a collection chamber, which collects the residual ink having been sucked into the suction nozzle; and a suction pump, which generates sucking power and provides the sucking power to the suction nozzle. The ink suction apparatus can prevent a suction nozzle from being blocked when sucking in hyper-viscous residual ink and control the sucking power of the suction nozzle by controlling the suction nozzle's opening and closing. | 03-04-2010 |
20100053264 | INKJET PRINTER AND PRINTING METHOD USING THE SAME - An inkjet printer and a printing method using the inkjet printer are disclosed. The inkjet printer in accordance with an embodiment of the present invention can include: a first inkjet head, which prints in one direction; and a second inkjet head, which prints in a different direction intersecting the one direction. In accordance with an embodiment of the present invention, the inkjet printer can print a pattern having a plurality of directions with a stable printing quality. | 03-04-2010 |
20100053645 | METHOD FOR PROCESSING DATA AND RECORDING MEDIA RECORDED WITH PROGRAM REALIZING THE SAME - Disclosed are a method for processing data and a recording media recorded with a program realizing the same. The method for processing bitmap data for driving an inkjet head in which nozzle rows are spaced from one another in a scan direction, each of the nozzle rows consisting of a plurality of nozzles disposed on the same straight line, the method including: converting a distance by which a second nozzle row is spaced from a first nozzle row in the scan direction into a pixel count of the bitmap data; and compensating the bitmap data for driving the second nozzle row by as much as the pixel count. | 03-04-2010 |
20100055302 | REDUCING AGENT FOR LOW TEMPERATURE REDUCING AND SINTERING OF COPPER NANOPARTICLES, AND METHOD FOR LOW TEMPERATURE SINTERING USING THE SAME - The present invention relates to a reducing agent for low temperature reducing and sintering of copper nanoparticles and a method for low temperature sintering using the same. The reducing agent includes formic acid or acetic acid and C1 to C3 alcohol or ether which allows reducing and sintering at a low temperature of less than 250° C. The sintered copper nanoparticles provide excellent electrical properties and are suitable for forming fine wirings patterns. | 03-04-2010 |
20100055605 | PRINTED CIRCUIT BOARD AND METHOD OF MANUFACTURING THE SAME - A printed circuit board and a method of manufacturing the printed circuit board are disclosed. The method of manufacturing the printed circuit board in accordance with an embodiment of the present invention can include: forming an opaque conductive pattern on one side of a transparent insulation layer; forming a photosensitive insulation layer on the transparent insulation layer such that the conductive pattern is covered; hardening the photosensitive insulation layer excluding an area covering the conductive pattern by irradiating light on the other side of the transparent insulation layer; and forming an opening on the photosensitive insulation layer by removing the area of the photosensitive insulation layer covering the conductive pattern such that the conductive pattern is exposed. | 03-04-2010 |
20100058585 | METHOD OF MANUFACTURING PRINTED CIRCUIT BOARD - A method of manufacturing a printed circuit board is disclosed. The method of manufacturing a printed circuit board in accordance with an embodiment of the present invention can include: forming a circuit pattern by discharging conductive ink on a carrier through inkjet printing, heating and sintering the circuit pattern, and transferring the circuit pattern on an insulation layer by stacking the carrier on the insulation layer such that the circuit pattern is buried in the insulation layer. In accordance with an embodiment of the present invention, a minute, precise circuit pattern can be formed through inkjet printing, and adhesion between the circuit pattern and the insulation layer can be improved. | 03-11-2010 |
20100059251 | PRINTED CIRCUIT BOARD AND MANUFACTURING METHOD - Disclosed are a printed circuit board and a method for manufacturing the same. The method, which includes providing a base substrate in which a thermoplastic resin layer is formed; forming a circuit pattern on the thermoplastic resin layer by discharging a conductive ink by an inkjet method; curing the circuit pattern through the heating at a temperature that is lower than a melting point of the thermoplastic resin layer; sintering the circuit pattern through the heating; and burying at least a part of the circuit pattern in the thermoplastic resin layer by heating the thermoplastic resin layer and compressing the circuit pattern toward the thermoplastic resin layer, can provide a printed circuit board and a method for manufacturing the same, in which a fine circuit pattern can be formed by an inkjet method and the adhesive force between the circuit pattern and the base substrate can be improved. | 03-11-2010 |
20100060680 | METHOD OF PRINTING LINE BY USING INKJET APPARATUS - Disclosed is a method of printing a circuit line on the board by using an inkjet apparatus. The line printing method of an embodiment can include forming an original bitmap image including information related to a circuit line to be printed on the board; firstly printing the circuit line according to the original bitmap image on the board by using the inkjet apparatus; forming a first printed image by photographing the circuit line firstly printed on the board; forming a complementary bitmap image including complementary printing information corresponding to a defectively printed portion based on the first printed image; and secondly printing a pertinent portion according to the complementary bitmap image on the board by using the inkjet apparatus. | 03-11-2010 |
20100060699 | INK-JET PRINTER - Disclosed is an inkjet printer. The inkjet printer in accordance with an embodiment of the present invention includes a supply channel coupled to a plurality of inkjet heads; a first main reservoir and a second main reservoir being coupled to either side of the supply channel; and a first press and a second press applying pressure to the inside of the first main reservoir and the second main reservoir, respectively. | 03-11-2010 |
20100068467 | METHOD FOR TREATING SURFACE OF SUBSTRATE RESIN AND SUBSTRATE RESIN TREATED THEREBY - It relates to a method for treating the surface of a printed circuit board resin and a printed circuit board resin treated thereby. The method may allows forming fine circuit patterns and improving the adhesive strength between metal patterns and the printed circuit board resin as well. | 03-18-2010 |
20100073436 | INK-JET HEAD - Disclosed is an inkjet head. The inkjet head in accordance with an embodiment of the present invention can include a body in which a plurality of chambers divided by partitions are formed; a plurality of actuators coupled to one side of the body respectively such that pressure is supplied to each of the plurality of the chambers; and a fixture coupled to one side of the body in correspondence to a position of each of the partitions such that vibrations of the partitions are reduced. | 03-25-2010 |
20100078604 | Nickel nanoparticles - Nickel nanoparticles including an aqueous solution including a nickel precursor, a surfactant, a hydrophobic solvent, and distilled water, the hydrophobic solvent being one or more compounds selected from the group consisting of hexane, cyclohexane, heptane, octane, isooctane, decane, tetradecane, hexadecane, toluene, xylene, 1-octadecene, and 1-hexadecene; a compound including hydrazine which is added to the aqueous solution to form a nickel-hydrazine complex; and a reducing agent added to the compound including the nickel-hydrazine complex. | 04-01-2010 |
20100079565 | INK RECOVERY DEVICE - An ink recovery device is disclosed. The ink recovery device, configured to retrieve ink being sprayed out from an inkjet printer, in accordance with an embodiment of the present invention includes: a recovery unit, which retrieves the ink; a storage, which is connected to the recovery unit and stores the retrieved ink; and a vibrating unit, which vibrates the stored ink. The ink recovery device in accordance with an embodiment of the present invention can effectively retrieve ink being sprayed out for the maintenance of an inkjet head and immediately reuse the retrieved ink while maintaining the properties of the ink. | 04-01-2010 |
20100096081 | METHOD OF MANUFACTURING INK-JET HEAD - Disclosed is a method of manufacturing an ink-jet head including a reservoir storing ink, an inlet port through which the ink is provided to the reservoir, a chamber provided with the ink from the reservoir, a restrictor linking the reservoir and the chamber, and a nozzle through which the ink in the chamber is discharged. The method in accordance with an embodiment of the present invention includes: processing a first plate in which the inlet port is formed; processing a second plate in which the chamber and the inlet port are formed; bonding the first plate on an upper surface of the second plate; processing a third plate in which the restrictor and the reservoir are formed; processing a fourth plate by irradiating a femtosecond laser such that the nozzle is formed; bonding the fourth plate on a lower surface of the third plate, and bonding the third plate on a lower surface of the second plate. | 04-22-2010 |
20100097424 | INK-JET HEAD - An ink-jet head is disclosed. The ink-jet head in accordance with an embodiment of the present invention, including a reservoir, which stores ink, a chamber, which is supplied with the ink from the reservoir, a restrictor, which connects the reservoir with the chamber, a nozzle, which ejects the ink, and a damper, which is interposed between the chamber and the nozzle, can include: a body, in which the chamber, the reservoir, the restrictor and the damper are formed; and a nozzle plate, which is coupled to the body and in which the nozzle is formed on the nozzle plate, in which the nozzle plate is made of a transparent material, and an observation window is formed on the nozzle plate and apart from the nozzle for observation of a meniscus formed in the nozzle. | 04-22-2010 |
20100097738 | ELECTROSTATIC CHUCK AND SUBSTRATE BONDING DEVICE USING THE SAME - An electrostatic chuck and a substrate bonding device equipped with the electrostatic chuck are disclosed. The electrostatic chuck in accordance with an embodiment of the present invention includes: an elastic holder, in which a center portion of one surface of the elastic holder is formed in a convex shape; an electrode, which is coupled to the elastic holder such that the elastic holder is electrically charged; and a holding unit, which holds the other surface of the elastic holder. The electrostatic chuck in accordance with an embodiment of the present invention can prevent a defect caused by a void formed between substrates while bonding the substrates. | 04-22-2010 |
20100103214 | INKJET HEAD ALIGNING METHOD - Disclosed is a method of aligning an inkjet head. The method of aligning an inkjet head having a plurality of nozzles can include recognizing a position (x | 04-29-2010 |
20100103222 | INKJET HEAD - An inkjet head is disclosed. The inkjet head, which include a head body, having one side, in which a nozzle is formed to discharge ink; and a protrusion, formed in one side of the head body, spaced from the nozzle, can form a groove on the surface of a printing target in the printing and then discharge ink in the groove, thereby increasing the aspect ratio of a printed line. | 04-29-2010 |
20100103225 | INKJET HEAD - An inkjet head is disclosed. The inkjet head can include a nozzle, configured to discharge ink; a chamber, configured to supply the ink to the nozzle; and a piezoelectric element, configured to receive electricity from an external power source and press the chamber, being made of a material having xPb(Mg | 04-29-2010 |
20100107411 | INKJET HEAD MANUFACTURING METHOD - An inkjet head manufacturing method is disclosed. The method of manufacturing an inkjet bead including a plurality of chambers, configured to contain ink; and an actuator, configured to provide pressure to the chamber, which includes forming a piezoelectric element on one side of the inkjet head that is adjacent to the chambers; forming the actuator(s) by dicing the piezoelectric element such that the piezoelectric element is divided and placed corresponding to a position of the chamber(s); and etching one side of the inkjet head such that a part of the piezoelectric element remaining between the adjacent actuators, can manufacture an inkjet head having a thin-film actuator reducing the cross talk by removing a part of the piezoelectric element remaining between the actuators of the inkjet head. | 05-06-2010 |
20100108952 | Core-shell structure metal nanoparticles and its manufacturing method thereof - Metal nanoparticles, containing a copper core and thin layer of precious metals enclosing the core to prevent oxidization of copper, in which manufacturing the metal nanoparticles is economical efficiency because of increased copper content and since such metal nanoparticles contain a metal having high electrical conductivity such as silver for a thin layer, they can form a wiring having better conductivity than copper and there is little concern that silver migration may occur. | 05-06-2010 |
20100116783 | METHOD OF MANUFACTURING INK-JET HEAD - A method of manufacturing an ink-jet head is disclosed. The method in accordance with an embodiment of the present invention includes: forming a dividing groove such that one surface of a piezoelectric element is divided corresponding to the position of the chamber; filling the dividing groove with a filler; bonding one surface of the piezoelectric element to one surface of the ink-jet head in which the chamber is formed; and polishing the other surface of the piezoelectric element such that the filler is exposed. | 05-13-2010 |
20100132196 | METHOD OF MANUFACTURING INK-JET HEAD - Disclosed is a method of manufacturing an ink-jet head including a plurality of chambers, a membrane covering the plurality of chambers, and a plurality of actuators separated from one another by a virtual dividing line on the membrane such that pressure is applied to each of the plurality of chambers. The method in accordance with an embodiment of the present invention includes: forming a groove at a position on one surface of a piezoelectric member, the position corresponding to the position of the dividing line; bonding the one surface of the piezoelectric member to the membrane, the one surface of the piezoelectric member having the groove formed therein; and processing the other surface of the piezoelectric member such that the groove is exposed. | 06-03-2010 |
20100141712 | INK-JET HEAD AND MANUFACTURING METHOD THEREOF - Disclosed are an ink-jet head and a method of manufacturing the ink-jet head including a plurality of chambers, a membrane covering the plurality of chambers, and a plurality of actuators separated from one another by a virtual dividing line on the membrane such that pressure is applied to each of the plurality of chambers. The method in accordance with an embodiment of the present invention includes: forming a groove at a position on one surface of the membrane, the position corresponding to the position of the dividing line; bonding a piezoelectric member to the one surface of the membrane having the groove formed therein by using adhesive resin; and dividing the piezoelectric member such that the groove is exposed. | 06-10-2010 |
20100171064 | NANOPARTICLES, CONDUCTIVE INK AND CIRCUIT LINE FORMING DEVICE - A nanoparticle for conductive ink including a ferromagnetic core and a conductive layer surrounding the ferromagnetic core. The ferromagnetic core is 5 to 40 parts by weight, per 100 parts by weight of the nanoparticles. The conductive ink provides electrical reliability by allowing a uniform distribution of nanoparticles in ejected ink and prevents the coffee stain phenomenon and migration. | 07-08-2010 |
20100180440 | METHOD FOR MANUFACTURING INK-JET HEAD - A method for manufacturing an ink jet head is disclosed. The method can include: forming a separation trough in one surface of each of a first piezoelectric element and a second piezoelectric element; attaching the first and the second piezoelectric elements together with the separation troughs of the first and the second piezoelectric elements facing each other; processing the other surface of the first piezoelectric element such that the separation trough is exposed; attaching the other surface of the first piezoelectric element to the membrane; and processing the other surface of the second piezoelectric element such that the separation trough is exposed. By utilizing certain embodiments of the invention, the actuators of an ink jet head can be manufactured with the piezoelectric elements separated from one another, without applying excessive stresses on the membrane. | 07-22-2010 |
20100182376 | INK-JET HEAD - An ink-jet head is disclosed. The ink-jet head can include a chamber for holding ink, an actuator that can provide pressure to the chamber, and a nozzle that includes a multiple number of channels for ejecting the ink. Certain embodiments of the invention can reduce the surface tension of the ink droplets and thereby reduce the capacity requirement of the actuators. | 07-22-2010 |
20100182381 | INK-JET HEAD - An ink-jet head is disclosed. The ink-jet head can include: a channel for holding ink, a nozzle connected with the channel, a pressurizing unit configured to apply pressure to the ink so as to eject the ink, a partition coupled to one side of the channel so as to block the channel, and an actuator configured to deform one side of the channel so as to open the channel. While pressure is applied to the ink, this pressure can be turned on and off, to provide pressure pulses for ejecting the ink. As such, with this arrangement, the ejection properties of the ink-jet head can be adjusted to various settings. | 07-22-2010 |
20100182382 | INKJET HEAD MODULE AND METHOD OF ALIGNING INKJET HEAD USING THE SAME - An inkjet head module and a method of aligning inkjet heads using the inkjet head module are disclosed. The inkjet head module can include a frame, which can be attached to and detached from an inkjet apparatus; a multiple number of heads, which may be coupled to the frame, and which may each have at least one nozzle formed for ejecting ink; a multiple number of support racks, each of which may be interposed between the frame and a head, and which may support the head such that the head is movable in relation to the frame; and a multiple number of piezoelectric motors, which may move the heads to align the heads in relation to one another. Certain embodiments of the invention make it possible to reduce the size of the overall inkjet apparatus, as well as to align a multiple number of inkjet heads with higher precision. | 07-22-2010 |
20100182388 | INK-JET HEAD - An ink-jet head is disclosed. The ink-jet head can include: a chamber for holding ink, an actuator coupled to one side of the chamber to provide pressure to the chamber, a damper portion connected with the other side of the chamber, an accelerator portion extending from a lateral surface of the damper portion, and a nozzle formed at an end of the accelerator portion. Certain embodiments of the invention can be used to increase the speed at which ink is ejected and improve the straightness of the ejection path. | 07-22-2010 |
20100212128 | Fabricating method of inkjet printer head - A method of fabricating an inkjet printer head, the method including: forming a nozzle part and a restrictor in a lower board and forming an ink chamber and an ink inlet in an upper board; joining the lower board onto an upper portion of the lower board; and joining a piezoelectric element onto a membrane of the upper board, wherein the membrane is formed, after a portion of the upper board is removed to form the ink chamber, by the remaining portion. | 08-26-2010 |
20100214368 | INK-JET HEAD - A ink-jet head is disclosed. The ink-jet head includes a chamber, which accommodates ink, a nozzle, which is coupled to the chamber to allow the ink to be ejected, a membrane, which is formed on the chamber at a side opposite to the nozzle, a first actuator, which is coupled to the membrane and configured to deform the membrane, and a second actuator, which is coupled to one side of the chamber and configured to deform the membrane. In accordance with an embodiment of the present invention, the ink-jet head can provide the required displacement of the membrane, even with a thin-film type actuator. | 08-26-2010 |
20100220157 | INK-JET HEAD AND METHOD FOR MANUFACTURING THE SAME - An ink-jet head and a method for manufacturing the ink-jet head are disclosed. A method for manufacturing an ink-jet head, which has a membrane formed on one side of a chamber housing ink, can include: forming a piezoelectric component over a glass substrate, attaching the piezoelectric component onto the membrane, irradiating a laser to an interface between the piezoelectric component and the glass substrate such that the piezoelectric component and the glass substrate are separated, and separating the piezoelectric component and the glass substrate. According to certain embodiments of the invention as set forth above, the actuator of the ink-jet head can be implemented in the form of a thin film, and as such, the electrical properties of the ink-jet head can be improved. | 09-02-2010 |
20100265297 | Inkjet head - An inkjet head is disclosed. In accordance with an embodiment of the present invention, the ink-jet head that prevents a nozzle from being blocked by a residual ink droplet formed on the nozzle can include a head body having the nozzle formed on one surface thereof and an actuator, which provides pressure to the inside of the head body. Here, a transfer groove is formed on one surface of the head body, in which the transfer groove is separated from the nozzle to provide a path through which the residual ink droplet moves. Thus, the inkjet head can prevent the nozzle from being blocked by a residual ink droplet formed on the nozzle by use of the transfer groove, which provides a path for a residual ink droplet formed on the nozzle to escape. | 10-21-2010 |
20100271432 | Nanoparticles, conductive ink and circuit line forming device - A circuit line forming device, including an inkjet head to eject a conductive ink onto one side of a substrate, the conductive ink containing nanoparticles including a ferromagnetic core and a conductive layer surrounding the ferromagnetic core; and a magnetic field generator part, positioned on the other side of the substrate in correspondence with the inkjet head, wherein the magnetic field generator part applies a magnetic field on the conductive ink, when the conductive ink is ejected to form circuit lines. | 10-28-2010 |
20100275729 | Method for manufacturing metal nanoparticles comprising rod-shaped nanoparticles - The present invention relates to a method for manufacturing metal nanoparticles containing rod-shaped nanoparticles, the method including: producing metal oxide nanoparticle intermediates having at least rod-shaped metal oxide nanoparticles by heating a mixture of a nonpolar solvent, a metal precursor and an amine including secondary amine at 60-300° C.; producing metal nanoparticles by adding a capping molecule and a reducing agent to the mixture and heating the result mixture at 90-150° C.; and recovering the metal nanoparticles. | 11-04-2010 |
20100282022 | Method for manufaturing copper-based nanoparticles - The present invention relates to a method for manufacturing copper-based nanoparticles, in particular, to a method for manufacturing copper-based nanoparticles, wherein the method includes producing CuO nanoparticles by mixing CuO micropowder and alkylamine in a nonpolar solvent and heating the mixture at 60-300° C.; and producing copper-based nanoparticles by mixing a capping molecule and a reducing agent with the CuO nanoparticles and heating the mixture at 60-120° C. | 11-11-2010 |
20100319489 | APPARATUS AND METHOD FOR MANUFACTURING METAL NANOPARTICLES - The present invention relates to an apparatus and a method of manufacturing metal nanoparticles, and more particularly to an apparatus including: a precursor supplying part which supplies a precursor solution of metal nanoparticles; a first heating part which is connected with the precursor supplying part, includes a reactor channel having a diameter of | 12-23-2010 |
20100321442 | INKJET HEAD - An inkjet head is disclosed. In an embodiment of the present invention, the ink-jet head includes a chamber, which houses ink, and a nozzle, which ejects the ink housed in the chamber. Here, the nozzle is elliptical. The inkjet head can print a minute pattern and reduce its driving energy because the inkjet head can eject a smaller droplet of ink with less energy compared to the energy being applied for a conventional inkjet head. | 12-23-2010 |
20110025792 | INK RECOVERY DEVICE - An ink recovery device is disclosed. The ink recovery device, configured to retrieve ink being sprayed out from an inkjet printer, in accordance with an embodiment of the present invention includes: a recovery unit, which retrieves the ink; a storage, which is connected to the recovery unit and stores the retrieved ink; and a vibrating unit, which vibrates the stored ink. The ink recovery device in accordance with an embodiment of the present invention can effectively retrieve ink being sprayed out for the maintenance of an inkjet head and immediately reuse the retrieved ink while maintaining the properties of the ink. | 02-03-2011 |
20110041336 | Method of manufacturing nozzle plate and inkjet head - A method of manufacturing a nozzle plate, that includes: forming a nozzle by selectively etching one side of a plate substrate; forming a straight portion connecting with the nozzle by selectively etching the other side of the plate substrate; and forming a hydrophobic layer on the one side of the plate substrate, wherein the hydrophobic layer has a window formed therein, the window opening the nozzle by a circumference greater than a circumference of an end of the nozzle. In a further embodiment, a method of manufacturing an inkjet head includes: forming an inlet and a pressure chamber in an upper substrate, the inlet penetrating the upper substrate and providing a passage for an inflow of ink, and the pressure chamber formed as a recess in one side of the upper substrate; forming a manifold and an ink channel in a middle substrate, the manifold configured to be connected with the inlet, and the ink channel penetrating the middle substrate and configured to be connected with the pressure chamber; forming a straight portion and a nozzle in a plate substrate, the straight portion configured to be connected with the ink channel, and the nozzle connected with the straight portion; forming a hydrophobic layer on one side of the plate substrate, the hydrophobic layer having a window formed therein, and the window opening the nozzle by a circumference greater than a circumference of an end of the nozzle; and stacking in order and attaching the upper substrate, the middle substrate, and the plate substrate. | 02-24-2011 |
20110088262 | METHOD FOR MANUFACTURING INKJET HEAD - A method for manufacturing an inkjet head is disclosed. The method for manufacturing an inkjet head can include preparing a head body including a vibrating membrane, which is located in an upper portion of the head body, coating a lower electrode over the vibrating membrane, patterning a resist such that an open area is formed over the vibrating membrane, filling a piezoelectric material in the open area, selectively coating an upper electrode over the piezoelectric material, and removing the resist. | 04-21-2011 |
20110111600 | PROCESSING METHOD FOR SOI SUBSTRATE - A method of processing a SOI substrate to form a groove in the SOI substrate in which a silicon layer is stacked on both sides of an oxide layer is disclosed. In accordance with an embodiment of the present invention, the method includes dividing a portion of the silicon layer, in which the groove is to be processed, into a plurality of unit portions, performing dry etching on certain portions of the plurality of divided unit portions such that the oxide layer is exposed and removing remaining portions of the plurality of divided unit portions by removing the oxide layer. | 05-12-2011 |
20110122197 | INKJET HEAD AND INKJET PRINTER HAVING THE SAME - An inkjet head and an inkjet printer having the inkjet head are disclosed. In accordance with an embodiment of the present invention, the inkjet head includes a chamber housing ink and a nozzle, which discharges the ink housed in the chamber. Here, a plurality of inner wall grooves are formed on an inner wall of the nozzle, in which the plurality of inner wall grooves extends in a lengthwise direction of the nozzle. Thus, the inkjet head can discharge big ink droplets at a high frequency by quickly filling the ink in the nozzle after relatively big ink is discharged. | 05-26-2011 |
20110308844 | Conductive electrode pattern and solar cell with the same - Disclosed herein is a conductive electrode pattern used as an electrode of a solar cell. The conductive electrode pattern includes a lower metal layer and an upper metal layer vertically disposed on a substrate, wherein any one of the lower metal layer and the upper metal layer includes silver (Ag) and the other one of the lower metal layer and the upper metal layer includes a metal of transition metals, different from that of the lower metal layer. | 12-22-2011 |
20110312123 | Method for forming conductive electrode pattern and method for manufacturing solar cell with the same - Disclosed herein is a conductive electrode pattern used as an electrode of a solar cell. The conductive electrode pattern includes a lower metal layer and an upper metal layer vertically disposed on a substrate, wherein any one of the lower metal layer and the upper metal layer includes silver (Ag) and the other one of the lower metal layer and the upper metal layer includes a metal of transition metals, different from that of the lower metal layer. | 12-22-2011 |