Abstract: A vibration-canceling mechanism includes a vibration transfer member of a plane shape inserted between a vibration-origination system having at least one resonance frequency and an object to which a vibration is applied from the vibration-origination system. The vibration transfer member has a resonance frequency equal to or near the at least one resonance frequency of the vibration-origination system. A center of one end section of the vibration transfer member is coupled by a single arm section to a center of the other end section of the vibration transfer member. The one end section of the vibration transfer member is fixed to the vibration-origination system and the other end section of the vibration transfer member is fixed to the object so that an apparent vibration of the object is substantially canceled by a resonance of the vibration transfer member.

Abstract: A method of testing a performance of an HGA including a step of obtaining a displacement performance of a precise positioning actuator by driving this actuator to displace and by executing a track profile measurement of at least one thin-film magnetic head element.

Abstract: An HGA includes a head slider provided with at least one head element, a precise positioning actuator fixed to the head slider for precisely positioning the at least one head element, a flexure made of a metal plate member for supporting the actuator and a load beam fixed to and for supporting the flexure. The actuator includes a pair of movable arms each formed by a metal plate that is substantially in parallel with a side surface of the head slider. Top end sections of the pair of movable arms are capable of displacing in response to a drive signal applied to the actuator along a direction crossing planes of the metal plate. The flexure and the actuator are unitarily formed.

Abstract: A vibration-canceling mechanism includes a vibration transfer member of a plane shape inserted between a vibration-origination system having a plurality of resonance frequencies and an object to which vibrations are applied from the vibration-origination system. The vibration transfer member has a plurality of resonance frequencies equal to or near the plurality of resonance frequencies of the vibration-origination system. The vibration transfer member has a plurality of pairs of arm sections for coupling one end section of the vibration transfer member with the other end section of the vibration transfer member. The one end section of the vibration transfer member is fixed to the vibration-origination system and the other end section of the vibration transfer member is fixed to the object so that apparent vibrations of the object are substantially canceled by resonances of the vibration transfer member.

Abstract: A vibration-canceling mechanism includes a vibration transfer member of a plane shape inserted between a vibration-origination system having at least one resonance frequency and an object to which a vibration is applied from the vibration-origination system. The vibration transfer member has a resonance frequency equal to or near the at least one resonance frequency of the vibration-origination system. One end section of the vibration transfer member is fixed to the vibration-origination system and the other end section of the vibration transfer member is fixed to the object so that an apparent vibration of the object is substantially canceled by a resonance of the vibration transfer member.

Abstract: A vibration-canceling mechanism includes a vibration transfer member. At least part of the vibration transfer member is inserted between a vibration-origination system having at least one resonance frequency and an object to which a vibration is applied from the vibration-origination system. The vibration transfer member has a resonance frequency equal to or near the at least one resonance frequency of the vibration-origination system. One end section of the vibration transfer member is fixed to the vibration-origination system and the other end section of the vibration transfer member is fixed to the object so that an apparent vibration of the object is substantially canceled by a resonance of the vibration transfer member.

Abstract: A method of connecting a plurality of probe pins to a plurality of first external connection pads, which are provided on a head gimbal assembly and are electrically connected to a plurality of terminal electrodes of a write magnetic head element, respectively, and a plurality of second external connection pads, which are provided on the head gimbal assembly and are electrically connected to a plurality of terminal electrodes of a read magnetic head element. In the connection method, an approach direction of the probe pins to the first external connection pads and an approach direction of the probe pins to the second external connection pads are made different from each other.

Abstract: A piezoelectric device comprises an integral body of piezoelectric material having a length and width greater than its thickness; wherein the device further includes, in contact with the body, respective pairs of electrodes, wherein the electrodes of each pair are opposed in the thickness direction, wherein the body deflects along said transverse direction when a voltage is applied to the electrode pair. The present invention further provisdes a disk drive suspension and a head gimbal assembly.

Abstract: A vibration-canceling mechanism includes a vibration transfer member of a plane shape inserted between a vibration-origination system having at least one resonance frequency and an object to which a vibration is applied from the vibration-origination system. The vibration transfer member has a resonance frequency equal to or near the at least one resonance frequency of the vibration-origination system. A center of one end section of the vibration transfer member is coupled by a single arm section to a center of the other end section of the vibration transfer member. The one end section of the vibration transfer member is fixed to the vibration-origination system and the other end section of the vibration transfer member is fixed to the object so that an apparent vibration of the object is substantially canceled by a resonance of the vibration transfer member.

Abstract: An HGA includes a head slider provided with at least one head element, a load beam, a flexure fixed to the load beam for determining a flying attitude of the head slider, a precise positioning actuator fixed to the head slider and supported by the flexure, for precisely positioning the at least one head element, and a load adjustment mechanism formed with the actuator, for adjusting a load imposed on the head slider.

Abstract: A precise positioning actuator to be fixed with a head slider with at least one head element and with a support, for precisely positioning the at least one head element, includes a pair of movable arms capable of displacing in response to a drive signal applied to the actuator The head slider is caught in a space between the movable arms.

Abstract: A precise positioning actuator to be fixed with a head slider with at least one head element and with a support, for precisely positioning the at least one head element, includes a pair of movable arms capable of displacing in response to a drive signal applied to the actuator The head slider is caught in a space between the movable arms.

Abstract: A precise positioning actuator for precisely positioning at least one head element is provided with a base and a pair of movable arms capable of displacing in response to a drive signal applied to the actuator. The pair of movable arms extend from the base for catching a head slider with at least one head element in a space between the pair of movable arms. Each of the pair of movable arms includes an arm member made of an elastic sintered ceramic and having substantially the same cross sectional shape from a root thereof to a top end thereof, a piezoelectric element formed on a side surface of the arm member and a protrusion additionally formed on an inside surface of the arm member near its top end section. The protrusion has tapered surfaces. Side surfaces of the head slider are adhered to the inside surfaces of the arm members at the protrusions and within regions between the protrusions and top ends of the arm members.

Abstract: A thin-film magnetic head includes an insulation gap, first and second magnetic poles separated with each other by the insulation gap, a yoke magnetically connected to the first and second magnetic poles, at least one coil conductor wound around the yoke by a plurality of turns, and at least one metal layer arranged near the at least one coil conductor in parallel with a plane of the at least one coil conductor.

Abstract: An HAA includes a head slider having at least one head element, a high-stiffness arm member for supporting the head slider at one end section, an actuator, mounted to the other end section of the arm member, for rotationally moving the arm member in a direction substantially parallel with a recording medium surface around a horizontal rotation axis of the arm member, and a resilient plate spring for generating a load, the plate spring having one end section fixed to the arm member and the other end section provided with a load point for energizing the head slider in a direction to the recording medium surface.

Abstract: A thin-film magnetic head includes an insulation gap, first and second yoke layers with one ends and the other ends, respectively, one ends constituting magnetic poles separated with each other by the insulation gap, the other ends being magnetically coupled with each other, and a coil conductor constituted by a plurality of single layer turns, for generating magnetic field and applying the generated magnetic field into the first and second yoke layers. Each turn of, the coil conductor includes a first section, a second section with one end coupled with one end of the first section, and a third section with one end coupled with the other end of the second section. The first section travels to pass between the first and second yoke layers in parallel with surfaces of the first and second yoke layers, and to extend over the first and second yoke layers.

Abstract: A thin-film magnetic head includes an insulation gap, a pair of yoke layers with one ends and the other ends, respectively, the one ends constituting magnetic poles separated with each other by the insulation gap, the other ends being magnetically coupled with each other, a coil conductor wound around at least one of the pair of yoke layers, first and second trace conductors with one ends electrically connected to both ends of the coil conductor, respectively, and first and second connection bumps electrically connected to the other ends of the first and second trace conductors, respectively. The first trace conductor includes a lower conductor layer and an upper conductor layer connected in parallel with each other, the second trace conductor including a lower conductor layer and an upper conductor layer connected in parallel with each other.

Abstract: A precise positioning actuator to be fixed to a head slider provided with at least one head element and to a support, for precisely positioning the at least one head element, includes a pair of movable arms formed by a metal plate. These movable arms are capable of displacing in response to a drive signal applied to the actuator along a direction crossing a plate plane of the movable arms, and catch the head slider in a space between them.

Abstract: A precise positioning actuator to be fixed with a head slider with at least one head element and with a support, for precisely positioning the at least one head element, including a pair of movable arms capable of displacing in response to a drive signal applied to the actuator. The head slider is caught in a space between the movable arms.

Abstract: A piezoelectric actuator is disclosed including an annular piezoelectric element and a base. There is a gap along the radial direction of the annular piezoelectric element. One of the two ends, i.e., the fixed end of the said annular element, is connected to the base, while the other end is free. The base is made of piezoelectric materials. Furthermore, the annular element is divided into two or more annular parts along the direction of its circumference by the electrode patterns applied on its two opposite surface and/or its polarization directions. When driving voltages are applied, the actuator can generate roughly a rotary motion around the center of the annular piezoelectric element. The annular rotary actuator could be either a single plate or with multilayer structure.