Abstract: A backlight unit includes a substrate, a plurality of light emitting diodes disposed at corners of a polygon or arranged side by side on the substrate, and a plurality of lenses coupled to the light emitting diodes for directing the lights emitted from the light emitting diodes in a predetermined direction. The light emitting diodes are comprised of at least three light emitting diodes capable of cooperating with each other to create a white light. Each of the lenses has an asymmetrical irradiation characteristic such that the lenses allow the lights to be irradiated on a predetermined target region and uniformly mixed with each other. The lenses are designed and oriented to irradiate the lights in an elliptical shape close to a rectangle toward a top portion of the backlight unit.

Abstract: A two-step high bottleneck type capillary for a wire bonding device having a height of 1.5˜5.0 mm and taper of 10˜15° from the capillary end is disclosed. The capillary consists of a straight portion; a first bottleneck portion extending upwards from the end of the capillary to a first step with a first taper of 8˜12°, said the first bottleneck portion having a first height of 0.1˜0.5 mm from the end of the capillary to the first step; and a second bottleneck portion extending upwards from the first step to a second step on the border of the straight portion with a second taper of 10˜15°, the second bottleneck portion having a second height of 1.1˜5.0 mm from the end of the capillary to the second step.

Abstract: Thermal pole tip protrusion is caused by the materials in and around the head slider expanding during write operations till part of those materials protrude, leading to contact with the rotating disk surface, altering the flying height and often wearing down part of the disk surface. While it is well known that read-write heads expand during writing, the inventors are unaware of anyone else who recognized this situation's significance, particularly as the flying height decreases and the data rates increase, both of which are required for high areal density disk drives. The inventors realized that they could detect the problem at the spin stand level by testing head gimbal assemblies to reliably, and inexpensively, predict the tendency for thermal pole tip protrusion. This leads to selection of head gimbal assemblies, which do not have the thermal pole tip protrusion tendency.

Abstract: The present invention relates to a single-crystalline gallium nitride substrate having an n-doping concentration of about 0.7×1018 to about 3×1018/cm3 and a thermal conductivity of at least about 1.5 W/cmK at a room temperature (300 K), and being appropriately applied in manufacturing of a light emitting device.

Abstract: This invention relates to water soluble iron oxide nanoparticles and a method of its preparation. More specifically, this invention relates to a method of manufacturing water soluble iron oxide nanoparticles uniform in size by coating polyvinylpyrolidone, a biocompatible polymer that can be intravenously administered via thermal decomposition, on the surface of iron oxide thereby enabling to control the size of resulting particles, and water soluble iron oxide nanoparticles coated with polyvinylpyrolidone. The above-mentioned water soluble iron oxide nanoparticles have excellent image contrasting effect and are thus useful as MRI contrast agent.

Abstract: A coating composition for automobile weatherstrips, in which inexpensive and readily handleable general-purpose polyolefin resins (i.e., a HDPE having MI of 1 dg/min or less, and HDPE having MI of 20 dg/min or more) are used in a coating agent for the preparation of a thin film to protect the portion of a glass run channel that contacts the window glass of an automobile door under pressure when the window is opened and closed by vertical movement of the window glass. The present invention provides economic benefits as well as uniform desired properties.

Abstract: The present invention relates to a freestanding, thick, single crystalline gallium nitride (GaN) film having significantly reduced bending deformation. The inventive GaN film having a crystal tilt angle of C-axis to the <0001> direction per surface distance of 0.0022 °/mm exhibits little bending deformation even at a thickness of 1 mm or more, and therefore, is beneficially used as a substrate for a luminescent device.

Abstract: A hard disk drive with a disk that has a plurality of servo sections and a plurality of data sections. At least some of the data sections have a track density different than the track density of the servo sections. The disk drive has a controller that may convert a data track number to a servo track number to compensate for the different densities. The conversion may be required to conduct a seek routine to access a data track associated with the data track number.

Abstract: An indoor unit of an air conditioner is provided. The indoor unit has an improved airflow structure, for a rapid air conditioning of the room, a user's convenience, and an efficiency of the air conditioner.

Abstract: The present invention relates to a sapphire/gallium nitride laminate, wherein a curvature radius thereof is positioned on the right side of a first curve plotted from the following functional formula (I): Y=Y0+A·e?(x?1)/T??(I) wherein Y is the curvature radius (m) of a sapphire/gallium nitride laminate, X is the thickness (?m) of a gallium nitride film, Y0 is 5.47±0.34, A is 24.13±0.50, and T is 0.56±0.04. The inventive laminate can be advantageously used in the manufacture of a high quality electronic device.

Abstract: Sealant compositions particularly suitable for solid oxide fuel cell sealant are provided and preferably comprise glass matrix and ceramic fiber, wherein glass matrix and ceramic fiber are mixed in an volume ratio of 25:75-75:25 in the sealant, and the ceramic fibers are preferably uniformly dispersed in the sealant to exhibit an orientation. Methods to manufacture the sealant compositions also are provided. Particularly preferred sealant compositions of the invention can efficiently avoid undesired viscous flow of glass matrix, precisely locate the stack of fuel cell on the region to be sealed, and maintain uniform sealing ability under various changes in size of the fuel cell stack.

Abstract: An indoor unit of an air conditioner is provided. The indoor unit has an improved airflow structure, for a rapid air conditioning of the room, a user's convenience, and an efficiency of the air conditioner.