Abstract: A fuel mixture for fuel cells, comprising a gelled product containing at least a fuel and a gelling agent, in which reliquefaction for the fuel of the gelled product is brought about in the coexistence with a reliquefying agent; and a method of extracting a fuel for fuel cells, including: providing a gel structure in which a fuel is incorporated into a network structure of a gelling agent, with a reliquefying agent dispersed therein; adding a reliquefaction inducing agent to the gel structure to make the reliquefying agent break the network structure of the gelling agent, and thereby reliquefying and extracting the fuel.

Abstract: A liquid actuator, which contains: an electrolyte layer (14, 114) containing a liquid, two or more electrically separated electrode parts (13a, 13b, 113a, 113b) on one or both sides of the electrolyte layer, and a water-repellent layer (12, 112) having a porous structure on an outside surface of at least one of the electrode parts, in which the electrolyte layer (14, 114), the electrode parts (13a, 13b, 113a, 113b), and the water-repellent layer (12, 112) form a structural body, wherein voltage is applied across the plural electrode parts (13a, 113a) including the one provided with the water-repellent layer (12, 112), and the applied voltage is adjusted to change the superficial wettability of the structural body.

Abstract: A carriage includes a slider on which a magnetic head for reading/writing information from/to a disk is mounted, a suspension for carrying the slider and for applying a predetermined load to the slider, a carriage arm to which the suspension is attached, and a body section to which the carriage arm is connected. The carriage arm includes a suspension fixing portion, as arm arranged substantially in parallel with a disk surface, and a restricting member which is a thin-plate-like member having a surface which is opposite to the plane of arm which is parallel to the disk surface. The restricting member and the arm are coupled via a viscoelastic body.

Abstract: A liquid actuator, which contains: an electrolyte layer (14, 114) containing a liquid, two or more electrically separated electrode parts (13a, 13b, 113a, 113b) on one or both sides of the electrolyte layer, and a water-repellent layer (12, 112) having a porous structure on an outside surface of at least one of the electrode parts, in which the electrolyte layer (14, 114), the electrode parts (13a, 13b, 113a, 113b), and the water-repellent layer (12, 112) form a structural body, wherein voltage is applied across the plural electrode parts (13a, 113a) including the one provided with the water-repellent layer (12, 112), and the applied voltage is adjusted to change the superficial wettability of the structural body.

Abstract: A fuel mixture for fuel cells, comprising a gelled product containing at least a fuel and a gelling agent, in which reliquefaction for the fuel of the gelled product is brought about in the coexistence with a reliquefying agent; and a method of extracting a fuel for fuel cells, including: providing a gel structure in which a fuel is incorporated into a network structure of a gelling agent, with a reliquefying agent dispersed therein; adding a reliquefaction inducing agent to the gel structure to make the reliquefying agent break the network structure of the gelling agent, and thereby reliquefying and extracting the fuel.

Abstract: A connector includes a support member and a plurality of electrodes. The support member is of a plate shape and has a front surface and a rear surface. Each of the electrodes pierces through the support member to have projections which project from the front surface and the rear surface, respectively. Each of the electrodes includes a component of a column shape formed of a resilient material and a metal thin film formed on a surface of the component.

Abstract: A carriage includes a slider on which a magnetic head for reading/writing information from/to a disk is mounted, a suspension for carrying the slider and for applying a predetermined load to the slider, a carriage arm to which the suspension is attached, and a body section to which the carriage arm is connected. The carriage arm includes a suspension fixing portion, as arm arranged substantially in parallel with a disk surface, and a restricting member which is a thin-plate-like member having a surface which is opposite to the plane of arm which is parallel to the disk surface. The restricting member and the arm are coupled via a viscoelastic body.

Abstract: A connector includes a support member and a plurality of electrodes. The support member is of a plate shape and has a front surface and a rear surface. Each of the electrodes pierces through the support member to have projections which project from the front surface and the rear surface, respectively. Each of the electrodes includes a component of a column shape formed of a resilient material and a metal thin film formed on a surface of the component.

Abstract: A carriage for a magnetic disk apparatus includes a slider on which a magnetic head for reading/writing information from/to a disk is mounted, a suspension for carrying the slider and for applying a predetermined load to the slider, and a carriage arm to which the suspension is attached. The carriage arm includes a suspension fixing portion, first and second arms arranged substantially in parallel with a disk surface, and a restricting member having a surface opposite to the first and second arms. The restricting member and the first arm, and the restricting member and the second arm are coupled via a viscoelastic body.

Abstract: A carriage for a magnetic disk apparatus includes a slider on which a magnetic head for reading/writing information from/to a disk is mounted, a suspension for carrying the slider and for applying a predetermined load to the slider, and a carriage arm to which the suspension is attached. The carriage arm includes a suspension fixing portion, first and second arms arranged substantially in parallel with a disk surface, and a restricting member having a surface opposite to the first and second arms. The restricting member and the first arm, and the restricting member and the second arm are coupled via a viscoelastic body.

Abstract: A carriage arm assembly for swingably supporting a magnetic head which includes a slider, a suspension carrying the slider, a carriage arm to which the suspension is attached, and a body section. The carriage arm extends from the body section and includes first and second arm members extending substantially in parallel with a swinging plane of the carriage arm, and a fixing portion provided at a distal end of the carriage arm for mounting the suspension thereon. Each of the first and second arm members have narrow sections in a distal end area and a base end area thereof, wherein a width of the narrow sections in a swinging direction is smaller than a width of an intermediate area of the first and second arm members.

Abstract: A magnetic disk drive having a high recording density and enabling high speed transfer is achieved by reducing vibration of a carriage arm assembly to reduce a positioning error. The disk drive is configured so that a carriage arm is configured by two arm portions, the arm portions being coupled to each other by a restraint member through a viscoelastic material, the restraint member being supported on a carriage body or an area of the carriage arm in the vicinity of the body by means of adhesion or a viscoelastic material. By providing a high damping effect against various vibration modes in which in-plane bending and out-plane bending of the carriage arm are generated, vibration of the carriage arm assembly is suppressed, so that the positioning error is reduced, thereby the magnetic disk drive having a high recording density can be achieved.

Abstract: A carriage arm assembly for swingably supporting a magnetic head which includes a slider, a suspension carrying the slider, a carriage arm to which the suspension is attached, and a body section. The body section includes first and second arm members extending substantially in parallel with a swinging plane of the carriage arm, and a fixing portion provided at a distal end of the carriage arm for mounting the suspension thereon. Each of the first and second arm members have narrow sections in a distal end area and a base end area thereof, wherein a width of the narrow sections in a swinging direction is smaller than a width of an intermediate area of the first and second arm members.

Abstract: According to the invention, there is provided a carriage arm assembly including a carriage arm having two arm members. The arm member is constructed in such a way that the width of its coil side end and the width of its suspension side end are narrower than that of its intermediate area. This construction widens a servo band width, improves positioning accuracy, and reduces positioning errors of a magnetic disk apparatus, so that recording density is improved and storage capacity is increased. Further, by coupling two arm members using a restriction member via a visco-elastic member, it is possible to achieve a high damping effect on various vibration modes including in-plane bending of the arms, and suppress vibration of the carriage so as to reduce the positioning errors.

Abstract: A rotary disk type storage device has a casing comprised of a box-shaped base casing, whose one side is opened, and a cover casing closing the open side of the base casing, in which accommodated are a magnetic disk, a spindle for rotating the magnetic disk, and an actuator for moving a magnetic head slider to a desired position on the magnetic disk. A film member having an adhesive layer is bonded to an outside of an edge portion of the casing to reduce vibrations of a side wall of the cover casing and therefore vibration-induced noise.

Abstract: An object of the invention is to provide a method of assembling a disc which can reduce an unbalance of a rotating portion.

Abstract: A magnetic disk drive having a high recording density and enabling high speed transfer is achieved by reducing vibration of a carriage arm assembly to reduce a positioning error. The disk drive is configured so that a carriage arm is configured by two arm portions, the arm portions being coupled to each other by a restraint member through a viscoelastic material, the restraint member being supported on a carriage body or an area of the carriage arm in the vicinity of the body by means of adhesion or a viscoelastic material. By providing a high damping effect against various vibration modes in which in-plane bending and out-plane bending of the carriage arm are generated, vibration of the carriage arm assembly is suppressed, so that the positioning error is reduced, thereby the magnetic disk drive having a high recording density can be achieved.

Abstract: Under existence of an impact and a vibration, a throughput and a reliability of a recording and reproducing operation in a magnetic disc apparatus are reduced. Accordingly, a mechanism for fixing a coarse moving actuator at an optional position is provided, at a time of following to a track, a motion of the coarse moving actuator is restricted and a positioning is performed by a fine moving actuator. Even when a vibration and an impact is applied from an external portion during the track following operation, it is possible to prevent the head position from being shifted and it is possible to perform a recording and reproducing operation. Further, it is possible to prevent adjacent data from being erroneously broken.

Abstract: An acceleration detecting apparatus for a magnetic disk apparatus capable of detecting with high reliability the disturbances such as rotational and translational shocks and vibrations applied externally to the magnetic disk apparatus to thereby prevent destruction or the like damages of data recorded on a disk of the magnetic disk apparatus upon occurrence of off-track event under the influence of the disturbance. The apparatus includes a pair of acceleration detectors for detecting acceleration in two directions extending discretely in parallel to each other. The acceleration detectors are disposed at positions closer to the magnetic disk relative to a pivot shaft for a head supporting arm as viewed in a longitudinal direction of an oblong box-like casing of the magnetic disk apparatus in a plane which forms an angle not greater than 10 degrees relative to the plane of the magnetic disk.

Abstract: According to the invention, there is provided a carriage arm assembly including a carriage arm having two arm members. The arm member is constructed in such a way that the width of its coil side end and the width of its suspension side end are narrower than that of its intermediate area. This construction widens a servo band width, improves positioning accuracy, and reduces positioning errors of a magnetic disk apparatus, so that recording density is improved and storage capacity is increased. Further, by coupling two arm members using a restriction member via a visco-elastic member, it is possible to achieve a high damping effect on various vibration modes including in-plane bending of the arms, and suppress vibration of the carriage so as to reduce the positioning errors.