| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 360234700 | Head attachment to slider | 10 |
| 20080253026 | Method to protect the magnetic recording head from thermal asperities during disk drive operation - A slider mounted read/write head is protected from thermal asperities due to head-disk interactions by a ridge formed along an interfacial plane that extends above the ABS plane of the slider. The ridge is formed as part of a lapping process that is directed from the read/write head towards the slider substrate and uses an abrasive slurry to which may be added a strong base such as KOH. The height of the ridge is less than approximately 2 nm. | 10-16-2008 |
| 20090067094 | SYSTEM AND METHOD FOR MEASURING AIR BEARING GAP DISTANCE - A method of determining the air gap distance between an air bearing pad and an apparatus floating on the air bearing pad comprises coupling a first probe to the air bearing pad; coupling a second probe to the apparatus floating on the air bearing pad, wherein the first and second probes provide the capacitance level between the air bearing pad and the apparatus; converting the capacitance level to a frequency; converting the frequency to a voltage level proportional to the air gap distance; and calculating the air gap distance based on the voltage level. | 03-12-2009 |
| 20090290260 | SYSTEMS HAVING COMPONENTS COUPLED WITH ELECTROSTATIC DISSIPATIVE ADHESIVE - A system in one embodiment includes a substrate; a thin film structure coupled to the substrate, the thin film structure comprising at least one of read transducers and write transducers; a closure; and an electrostatically dissipative adhesive coupling the closure to at least one of the thin film structure and the substrate. The adhesive comprises a mixture comprising: an adhesive material; and electrically conductive particles intermixed with the adhesive material, the electrically conductive particles being present in an amount between 0 and about 10% by weight of a total weight of the mixture. The closure defines at least a portion of a tape bearing surface. Additional systems and methods are also presented. | 11-26-2009 |
| 20100259850 | STORAGE DEVICE AND METHOD OF DETERMINING HEAD SLIDER CONTACT - According to one embodiment, a storage device includes a recording medium, a head slider, a head suspension, an actuator, and an alternating current component generator. The head slider faces a surface of the recording medium. The head suspension supports the head slider. The actuator is incorporated in the head slider and increases the protruding length of a protrusion formed on the head slider toward the surface of the recording medium based on an increase in a supplied electrical signal. The alternating current component generator superimposes an alternating current component having a frequency equal to the natural frequency of the head suspension over the electrical signal while increasing or decreasing the protruding length of the protrusion at a predetermined amplitude. | 10-14-2010 |
| 20140146420 | MAGNETIC HEAD, MAGNETIC HEAD ASSEMBLY, AND MAGNETIC RECORDING/REPRODUCTION APPARATUS - According to one embodiment, a magnetic head includes a spin torque oscillator formed between a main magnetic pole and auxiliary magnetic pole. The spin torque oscillator includes a transmission-type spin transfer layer, first interlayer, oscillation layer, second interlayer, and reflection-type spin transfer layer. The transmission-type spin transfer layer includes a first perpendicular magnetization film and first interface magnetic layer. The first interface magnetic layer contains at least one element selected from Fe, Co, and Ni, and at least one element selected from Cr, V, Mn, Ti, and Sc. The reflection-type spin transfer layer includes a second perpendicular magnetization film. | 05-29-2014 |
| 20140268420 | MAGNETIC WRITE HEAD HAVING A WRITE POLE WITH A CONSTANT FLARE ANGLE AND MULTIPLE YOKE ANGLES - A magnetic write head having a write pole with a novel configuration improving write field strength and field gradient while also reducing adjacent track interference and far track interference. The write pole is configured with a pole tip portion that has a narrow track width, preferably 15-30 degrees and a main yoke portion with a larger flare angle of about 45 degrees. The write pole also has an intermediate portion located between the pole tip and main pole portions. The intermediate portion includes a first portion adjacent to the pole tip that has a flare angle greater than the flare angle of the main yoke and has a second portion with a flare angle less than the flare angle of the yoke. | 09-18-2014 |
| 20150103443 | METHODS OF MANUFACTURING MAGNETIC HEADS USING A TRIGGER READER ELECTRONIC LAPPING GUIDE - A method of manufacturing a magnetic read-write head, including the steps of presenting a row bar to a processing location, the row bar including an air bearing surface, at least one read-write head, at least one electronic lapping guide, and at least one trigger device, wherein each electronic lapping guide is positioned at a different distance from the air bearing surface than each trigger device, and wherein the read-write head and at least one of the trigger devices include a multi-layer stack of materials; lapping the air bearing surface while measuring the electrical resistance of at least one electronic lapping guide and at least one trigger device until the resistance measurement of the trigger device provides an open circuit reading, and measuring an offset resistance value of the at least one electronic lapping guide concurrently with the measurement of the open circuit reading by the trigger device. | 04-16-2015 |
| 20160071535 | METHODS OF MANUFACTURING MAGNETIC HEADS USING A TRIGGER READER ELECTRONIC LAPPING GUIDE - A method of manufacturing a magnetic read-write head, including the steps of presenting a row bar to a processing location, the row bar including an air bearing surface, at least one read-write head, at least one electronic lapping guide, and at least one trigger device, wherein each electronic lapping guide is positioned at a different distance from the air bearing surface than each trigger device, and wherein the read-write head and at least one of the trigger devices include a multi-layer stack of materials; lapping the air bearing surface while measuring the electrical resistance of at least one electronic lapping guide and at least one trigger device until the resistance measurement of the trigger device provides an open circuit reading, and measuring an offset resistance value of the at least one electronic lapping guide concurrently with the measurement of the open circuit reading by the trigger device. | 03-10-2016 |
| 360234800 | On/in side of slider | 2 |
| 20090021865 | Minimizing slider vibration effects on a magnetic transducer - Minimizing slider vibration effects on a magnetic transducer coupled to a slider are described herein. In one embodiment, a method is described for minimizing slider vibration effects on a magnetic transducer coupled to the slider. A mass component of the slider is adjusted such that at least one pitch nodal line and/or at least one roll nodal line of the slider approximately coincide with an intersection point, and the magnetic transducer is positioned to approximately coincide with the intersection point. | 01-22-2009 |
| 20130050877 | SLIDER, HEAD GIMBAL ASSEMBLY AND DISK DRIVE UNIT WITH THE SAME - A slider includes a substrate having a trailing edge, a leading edge opposite the trailing edge, and an air bearing surface connecting the trailing edge with the leading edge; a read/write transducer formed at the trailing edge; and a coat layer attached on the trailing edge and covering on the read/write transducer. The slider further includes a protection layer for shielding the read/write transducer thereby preventing the read/write transducer from damaging during a laser soldering process. The present invention can prevent the read/write transducer from damaging during the laser bonding process and, in turn improve the reading and writing performance of the slider. The invention also discloses an HGA and a disk drive unit. | 02-28-2013 |
