Patent application number | Description | Published |
20120262816 | MAGNETIC HEAD HAVING A CONTACT DETECTION SENSOR - A thermally actuated head for magnetic head for magnetic data recording having a contact sensor for detecting contact between the head and a magnetic disk. The contact sensor includes a thermal sensor film and first and second leads, wherein the leads extend at least as far from the ABS as the thermal sensor film. More preferably the leads extend slightly further from the ABS than the sensor film so that contact between the magnetic disk and the contact sensor occurs at the leads rather than at the sensor film. The sensor film can be constructed of NiFe, preferably having 30-70 atomic percent Ni or more preferably 40-60 atomic percent Ni or most preferably 40-50 atomic percent Ni. The leads are preferably constructed of one or more of Ru, Rh or Ta or an alloy whose primary constituents are Ru, Rh or Ta. | 10-18-2012 |
20130077189 | LOW CLEARANCE MAGNETIC HEAD HAVING A CONTACT DETECTION SENSOR - According to one embodiment, a magnetic data system includes a magnetic disk medium, a magnetic head having a writer element and/or a reader element, an exothermic resistor element for thermal fly-height control (TFC), a contact detection sensor having a resistor element and at least one contact detection electrode, and an insulating film on a medium facing side of the magnetic head to protect the contact detection sensor, the insulating film having a thickness greater than the contact detection electrode, a drive mechanism for passing the magnetic disk medium over the magnetic head, and a controller electrically coupled to the magnetic head for controlling operation of the magnetic head, wherein the controller adjusts magnetic spacing between the magnetic head and the magnetic disk medium via thermal distortion of the exothermic resistor element. The contact detection sensor may be used as a second TFC resistor element. | 03-28-2013 |
20130141813 | MAGNETIC HEAD HAVING A THERMAL FLY-HEIGHT CONTROL (TFC) STRUCTURE UNDER A FLAT LOWER SHIELD - In one embodiment, a method includes forming a conducting material above an insulating film, applying a mask to portions of the conducting material in a shape of a TFC structure, removing exposed portions of the conducting material to form the TFC structure, depositing an insulating film above the TFC structure, and planarizing the insulating film to form a planar upper surface of the insulating film. In another embodiment, a magnetic head includes a TFC structure positioned between insulating films and a magnetic element positioned above the TFC structure, the TFC structure configured for providing localized thermal protrusion of the magnetic head on a media facing surface thereof, wherein an upper surface of an upper of the insulating films is planar, the magnetic element includes at least one of a main magnetic pole and a read sensor, and the TFC structure is configured for providing thermal protrusion of the magnetic element. | 06-06-2013 |
Patent application number | Description | Published |
20130021452 | THREE-DIMENSIONAL DISTANCE MEASUREMENT APPARATUS AND METHOD THEREFOR - A three-dimensional imaging unit includes a plurality of image pickup devices that image an image and a rotation drive device which rotates the image pickup devices and adjusts optical axes such that reflections of an object to be measured in a space to be measured have a predetermined amount of overlap. An association calculating unit calculates position association information of pixels when a required measurement point is mapped onto a plurality of images. A three-dimensional shape calculating unit calculates a three-dimensional shape of the object to be measured using the position association information and rotational information of the rotation drive device. A three-dimensional shape estimation calculating unit estimates, from the three-dimensional shape, a three-dimensional shape of a region of the object to be measured where the three-dimensional shape is not obtained. A three-dimensional measurement coordinates calculating unit calculates, from an estimation result, three-dimensional coordinates of two distance measurement points designated on the object to be measured. A distance calculating unit calculates a distance between the two points using the three-dimensional coordinates. | 01-24-2013 |
20130026148 | WELDING APPARATUS AND WELDING METHOD - A welding apparatus of an embodiment includes: a welding torch and a shape sensor attached to a welding robot; a shape data extraction unit extracting, from measured data measured by the shape sensor, shape data representing an outline of an object to be welded; a transformation data calculation unit calculating, based on a position and a posture of the shape sensor, coordinate transformation data for correcting the shape data; a shape data correction unit correcting the shape data based on the coordinate transformation data; an angle calculation unit calculating, based on the corrected shape data, an inclination angle of a groove of the object to be welded; and a welding position and posture determination unit determining, based on the inclination angle of the groove, a position and a posture of the welding torch. | 01-31-2013 |