Abstract: Disclosed herein is a built-up type box-shaped steel column for filling concrete therein, that can be formed easily and economically in a built-up scheme by using ?-beams and steel plates, and a method for manufacturing the same that includes bonding a steel plate at the inner surface of a ?-shapes during a process of making a built-up type box-shaped steel column, thereby having a good resistance against a lateral pressure of concrete filled in the steel column and preventing the bonded portion from being exposed to the outside to provide a better outer appearance. The built-up type box-shaped steel column for filling concrete therein, includes: a ?-shapes disposed at each of the four corners of a box-shaped steel column to be formed; and a steel plate disposed between the ?-shapes adjacent to each other for connecting the ?-shapes with each other.

Abstract: An inkjet printhead and a method of manufacturing the inkjet printhead. In the inkjet printhead, an anti reflective layer is formed of a material absorbing light on a chamber layer, and a nozzle layer including a plurality of nozzles is formed on the anti reflective layer.

Abstract: A method and apparatus for map-updating of a navigation system by automatically generating point of interest (POI) data that is not registered and automatically generating a POP alias of POI data that is already registered, the method including: logging at least one piece of point of interest (POI) data if the POI data input in order to find a destination is not found in the navigation terminal; and registering the logged at least one piece of POI data as a candidate POI alias of newly input POI data if a destination designated by the navigation terminal according to the newly input POI data is equal to an arrived destination.

Abstract: A location information providing apparatus to provide a location thereof, the location information providing apparatus including: a storage unit to store location information regarding the location of the location information providing apparatus; and a transmitter to transmit the location information. Therefore, precise location information can be provided. In addition, a location-based service can be performed in a simple way because there is no need to consider a handoff depending on a movement of a location-based service supporting apparatus, and a service area can be expanded abroad because a wired network is not required. Also, various opportunities using the location-based service can be realized.

Abstract: An inkjet print head including a substrate and a first film member stacked on the substrate to form an ink path, and a manufacturing method thereof. The first film member includes a path-defining layer made of a photosensitive material and formed with the ink path, and an adhesive layer made of a photosensitive material and used to stably bond the path-defining layer to the substrate. With this configuration, the path-defining layer and the adhesive layer can be simultaneously stacked on the substrate and also, can be patterned simultaneously.

Abstract: An ink cartridge to prevent image degradation due to a misalignment of nozzles in a transfer direction of a printing medium and a transverse direction includes a print head substrate, a first head unit including at least one first print head chip which is disposed on the print head substrate and includes a plurality of first nozzles arranged in plural lines in a second direction perpendicular to a first direction which is a transfer direction of a printing medium, thereby forming a first line in the second direction, and a second head unit including at least one second print head chip which is disposed on the print head substrate and which has an ink jetting area overlapping a predetermined area of the first line, thereby forming an overlapping area, and which includes a plurality of second nozzles arranged in plural lines in the second direction, thereby forming a second line spaced from the first line, and dots formed by the first and the second nozzles, which neighbor each other in the overlapping area whe

Abstract: Hollow toner and a process of preparing the same are provided. The hollow toner has a hollow sphere shape, wherein an outer layer surrounding the hollow sphere includes a polymer, a wax and a pigment. The hollow toner has excellent fixing properties under low energy and low pressure, and can be efficiently used at high-speed fixing. Also, a small amount of the hollow toner is consumed. Thus, the hollow toner can be efficiently applied to various apparatuses of forming an image such as a two-component low-temperature printer and super high-speed printer, and the hollow toner can be prepared by using a relatively simple process.

Abstract: Disclosed is a saw blade capable of rapid cutting for various objects, such as jewelry, ferrite materials, stone, metallic materials, or ceramic tiles. The shape of the saw blade is modified such that performance and life time of the saw blade are improved. And also the manufacturing process for the saw blade is simplified, thereby reducing the manufacturing cost for the saw blade. The cutting tip is formed at upper and lower surfaces thereof with a mesh pattern, thereby enhancing the cutting performance by 30% as compared with that of a conventional cutting tip. The cutting tip represents superior cooling efficiency so that body of the saw blade is not broken during the cutting process, thereby ensuring safety of a worker and expanding the life time of the saw blade.

Abstract: A head chip for an inkjet image forming apparatus. The head chip can include a heater formed on a substrate to generate heat, a chamber layer formed on the heater and provided with an ink chamber that receives inks, a nozzle layer formed on the chamber layer and provided with a nozzle in correspondence with the ink chamber, and a heat transfer layer transferring a part of the heat from the heater to the nozzle. According to the head chip, the inks sprayed through the nozzle are heated by the heat transferred through the heat transfer layer. Thus, the viscosity of the inks is reduced, so that the inks can be easily cut into ink droplets having a substantially spherical shape.

Abstract: A thermal inkjet printhead that includes a substrate, a chamber layer stacked on the substrate, an ink chamber formed in the chamber layer, a heater to heat ink filled in the ink chamber to generate bubbles, and a nozzle layer stacked on the chamber layer, and including a nozzle formed in the nozzle layer, wherein a ratio of the volume of ink ejected through the nozzle with respect to the sum of the volumes of the ink chamber and the nozzle is in the range of approximately 40 to 60%.

Abstract: An electrical card connector includes an insulating housing having a plurality of passageways and a plurality of contacts received in the insulating housing. Said insulating housing has a plurality of bars near two sides of each passageway for restricting each said contact vertically. Each bar has a barb on an inner side thereof so that the contact can be retained in the insulating housing firmly to prevent the contact from dropping out from the insulating housing.

Abstract: An embodiment of a media sheet has a barrier layer formed on a first surface of a substrate. An image-receiving layer is formed on the barrier layer. A porous pigment layer is formed on a second surface of the substrate.

Abstract: An electrical connector (100) used to be mounted on a printed circuit board includes an insulating housing (20) defining a receiving cavity (21) for mating with a complementary component (80), a number of electrical contacts (30) to be soldered to the printed circuit board, an ejecting mechanism assembled to the insulating housing and a metal cover (40) covering the insulating housing (20). The ejecting mechanism includes a slider (60) slidable between a first position and a second position, and a spring (50) for driving the slider to the first position. The metal cover forms a tab (41) at the first position for preventing the slider from moving over the first position under a force that the spring applies to the slider.

Abstract: A card connector with an insulating housing comprising a plurality of passageways; a plurality of contacts received in the passageways of the housing; the housing further receives metal guiding arms, each guiding arm having legs which engage opposite sides of the housing where one of the legs provides for soldered adhesion of each guiding arm to a printed circuit board.

Abstract: A card connector adapted for receiving a card, comprises an insulating housing defining a card receiving space for the card, a plurality of contacts, an ejector for ejecting the card and at least two switch contacts for detecting whether the card is inserted. The ejector comprises a slider defining an original position and a final position, a spring, a holding equipment and a metal plate retained to the slider and moving together with the slider. One of the switch contacts not electrically connecting with the other switch contacts when the slider is at the original position, and all of the switch electrically connecting with each other by simultaneity contacting with the metal plate when the slider is at the final position.

Abstract: A method for detection and scoring of hotspots in a design layout is provided. A plurality of indices is derived for a plurality of positions in the design layout. The plurality of indices comprises a first index sensitive to energy exposure of the design layout, a second index sensitive to process image formation, and a third index sensitive to mask manufacturing error. The plurality of indices is then analyzed to identify at least one hotspot in the design layout. The at least one hotspot is then prioritized using an integrated hotspot scoring system. The integrated hotspot scoring system prioritizes hotspots based on a look-up table approach or an interpolation approach.