Abstract: A nonvolatile carbon nanotube memory device using multiwall carbon nanotubes and methods of operating and fabricating the same are provided. The nonvolatile memory device may include a substrate, at least one first electrode on the substrate, first and second vertical walls on the at least one first electrode spaced from each other, a multiwall carbon nanotube on the at least one first electrode between the first and second vertical walls, second and third electrodes on the first and second vertical walls respectively and at least one fourth electrode spaced a variable distance D (where D?0) from the multiwall carbon nanotubes.

Abstract: A suspension assembly of an actuator of a hard disk drive prevents collisions with a data storage disk of the drive. The suspension assembly includes a load beam, a bracket having a rear end at which the bracket is coupled to the load beam and a flexure, a slider that is attached to the bracket and carries the read/write head of the hard disk drive, and a limiting mechanism capable of selectively attaching and detaching a respective portion of the bracket to and from the load beam during operation. The load beam has a dimple projecting toward the bracket and which normally contacts a first surface of the bracket. The slider is attached to a second surface of the bracket opposite the first surface. The limiting mechanism attaches a portion of the bracket bearing the slider to the load beam when the read/write head is unloaded from the disk. Therefore, the wobbling of the slider is suppressed during the unloading operation.

Abstract: A flexure suppresses the vibration of a slider bearing a magnetic read/write head. The flexure has a cross beam, a slider support that supports the slider and is in turn supported like a cantilever by the cross beam but so as to be elastic, a rear vibration absorber protruding from a free end of the slider support in a direction away from the cross beam, and a forward vibration absorber protruding from the cross beam in a direction opposite to that in which the rear vibration absorber protrudes from the free end of the slider support. In a head suspension assembly, an end of the flexure is fixed to a load beam. Also, the load beam is coupled to a base plate by, for example, a hinge. The head suspension assembly is carried by a swing arm in a hard disk drive. The swing arm is mounted to a base so as to be rotatable to position the magnetic read/write head over a data storage disk of the drive.

Abstract: Provided is a foot structure for a humanoid robot capable of effectively keeping its balance in a pause state or action. The foot structure includes a support; a plurality of lower structures having an upper member connected to a bottom of the support; a plurality of lower members having a plurality of independent portions each movably connected to the upper member; and a revolute joint for coupling the upper member and the lower member. Since a contact between the foot structure and the floor is smoothly made, a shock is prevented from being transferred to a body of the humanoid robot. Also, a vibration generated when the humanoid robot steps on the floor is eliminated, so that the humanoid robot can pose a stable and smooth gate.

Abstract: A slider of a hard disk drive can include a slider main body on which a read/write head is mounted, the read/write head configured to write data to a disk and to read data from the disk by being lifted a predetermined height from a surface of the disk by a lift force when the disk is rotating, and a lift force generation unit provided in an area of the slider main body proximate to the read/write head to improve the lift force of the slider main body with respect to the disk.

Abstract: Provided is an anthropomorphic robot having two legs and which is capable of walking upright. Each of the two legs has a foot which comprises an upper plate on which an ankle joint is installed and which is similar to a foot of a human, and a lower plate attached to a lower surface of the upper plate and having a plurality of contact portions which contact a ground and which are separated from one another.

Abstract: An apparatus is provided for gripping nano-scale objects, wherein the apparatus includes a probe including a base portion and a terminal portion. First and second nanotubes are secured to the base portion of the probe, wherein each of the first and second nanotubes include a protruding portion which extends past the base portion and the terminal portion of the probe. First and second electrodes are formed on the base portion of the probe and electrically connected to the first and second nanotubes. A third electrode is disposed on the terminal portion of the probe. A control circuit applies a voltage to the first, second and third electrodes to close the protruding portions of the first and second nanotubes by charging the first and second nanotubes to a first polarity and charging the third electrode to a second polarity opposite to the first polarity.

Abstract: A nonvolatile carbon nanotube memory device using multiwall carbon nanotubes and methods of operating and fabricating the same are provided. The nonvolatile memory device may include a substrate, at least one first electrode on the substrate, first and second vertical walls on the at least one first electrode spaced from each other, a multiwall carbon nanotube on the at least one first electrode between the first and second vertical walls, second and third electrodes on the first and second vertical walls respectively and at least one fourth electrode spaced a variable distance D (where D?0) from the multiwall carbon nanotubes.

Abstract: A suspension assembly of an actuator of a hard disk drive prevents collisions with a data storage disk of the drive. The suspension assembly includes a load beam, a bracket having a rear end at which the bracket is coupled to the load beam and a flexure, a slider that is attached to the bracket and carries the read/write head of the hard disk drive, and a limiting mechanism capable of selectively attaching and detaching a respective portion of the bracket to and from the load beam during operation. The load beam has a dimple projecting toward the bracket and which normally contacts a first surface of the bracket. The slider is attached to a second surface of the bracket opposite the first surface. The limiting mechanism attaches a portion of the bracket bearing the slider to the load beam when the read/write head is unloaded from the disk. Therefore, the wobbling of the slider is suppressed during the unloading operation.

Abstract: An apparatus is provided for gripping nano-scale objects, wherein the apparatus includes a probe including a base portion and a terminal portion. First and second nanotubes are secured to the base portion of the probe, wherein each of the first and second nanotubes include a protruding portion which extends past the base portion and the terminal portion of the probe. First and second electrodes are formed on the base portion of the probe and electrically connected to the first and second nanotubes. A third electrode is disposed on the terminal portion of the probe. A control circuit applies a voltage to the first, second and third electrodes to close the protruding portions of the first and second nanotubes by charging the first and second nanotubes to a first polarity and charging the third electrode to a second polarity opposite to the first polarity.

Abstract: Provided is an anthropomorphic robot having two legs and which is capable of walking upright. Each of the two legs has a foot which comprises an upper plate on which an ankle joint is installed and which is similar to a foot of a human, and a lower plate attached to a lower surface of the upper plate and having a plurality of contact portions which contact a ground and which are separated from one another.

Abstract: Provided is a foot structure for a humanoid robot capable of effectively keeping its balance in a pause state or action. The foot structure includes a support; a plurality of lower structures having an upper member connected to a bottom of the support; a plurality of lower members having a plurality of independent portions each movably connected to the upper member; and a revolute joint for coupling the upper member and the lower member. Since a contact between the foot structure and the floor is smoothly made, a shock is prevented from being transferred to a body of the humanoid robot. Also, a vibration generated when the humanoid robot steps on the floor is eliminated, so that the humanoid robot can pose a stable and smooth gate.