Patent application number | Description | Published |
20080253021 | Non-magnetic contact enhancement feature - A transducer having an external contact surface includes a writer and a contact member. The writer has a portion extendable beyond the external contact surface. The contact member surrounds at least a portion of the extendable writer portion. | 10-16-2008 |
20090251821 | DEDICATED ID-OD WRITER WITH BEVELED POLE TIPS AND METHOD OF MANUFACTURE - A transducing head for use with a storage medium rotatable about an axis includes first and second writers for writing to the storage medium. The first writer is configured for dedicated writing to a first radial region of the storage medium, and the second writer is configured for dedicated writing to a second radial region of the storage medium. The second radial region is located radially outward from the first radial region. | 10-08-2009 |
20090262460 | HEAD ASSEMBLY HAVING A SENSING ELEMENT - A head or slider having a sensor element to detect changes in head-media spacing is disclosed. In illustrated embodiments the sensor element includes a piezoelectric sensor layer or similar layer that provides acoustic emission or vibration responsive to changes in head-media spacing. In illustrated embodiments, the sensor element is located proximate to the close point of the head and slider. In embodiments described in the specification, output from the sensor element is utilized to energize a heating element or microactuator to control pole tip protrusion or actuation of transducer elements responsive to changes in head-media spacing. | 10-22-2009 |
20090302953 | MAGNETIC OSCILLATOR WITH MULTIPLE COHERENT PHASE OUTPUT - Apparatus to generate signals with multiple phases are described. The apparatus includes a fixed multilayer stack providing a varying magnetic field and at least two sensors adjacent the fixed multilayer stack to sense the varying magnetic field and generate at least two output signals. The frequency of the output signals can be tuned by an input current. | 12-10-2009 |
20120229935 | Magnetic Element With Increased Scissoring Angle - An apparatus and associated method is presently disclosed for a data sensing element capable of detecting changes in magnetic states. Various embodiments of the present invention are generally directed to a magnetically responsive lamination that has a spacer layer disposed between a first and second ferromagnetic free layer. The lamination having at least one free layer with a shape feature that increases a scissoring angle between the free layers. | 09-13-2012 |
20120268846 | Magnetic Element With Enhanced Coupling Portion - An apparatus and associated method may be used to produce a magnetic element capable of detecting changes in magnetic states. Various embodiments of the present invention are generally directed to a magnetically responsive lamination of layers with a first portion and a laterally adjacent second portion. The second portion having a predetermined roughness between at least two layers capable of producing orange-peel coupling. | 10-25-2012 |
20120268847 | TRILAYER READER WITH CURRENT CONSTRAINT AT THE ABS - A magnetoresistive read sensor is described. The sensor is a magnetically responsive stack positioned between top and bottom electrodes on an air bearing surface. Current in the sensor is confined to regions close to the air bearing surface by a first multilayer insulator structure between the stack and at least one electrode to enhance reader sensitivity. | 10-25-2012 |
20120281319 | Magnetoresistive Shield - A magnetic shield that is capable of enhancing magnetic reading. In accordance with various embodiments, a magnetic element has a magnetically responsive stack shielded from magnetic flux and biased to a predetermined default magnetization by at least one lateral side shield that has a transition metal layer disposed between first and second ferromagnetic layers. | 11-08-2012 |
20130000107 | Contact feature for use with transducing devices - A transducer having an external contact surface includes a writer and a contact member. The writer has a portion extendable relative to an adjacent portion of the external contact surface. The contact member surrounds at least a portion of the extendable writer portion and is spaced from the extendable writer portion. The coefficient of thermal expansion of the contact member is approximately equal to the coefficient of thermal expansion of the extendable writer portion. | 01-03-2013 |
20130027031 | Enhanced Magnetic Sensor Biasing Yoke - An apparatus and associated method are generally directed to a magnetic sensor. A sensor may have a stack with an air bearing surface (ABS) and a biasing surface opposite the ABS. A biasing yoke can be disposed between a biasing magnet and the stack with the biasing magnet having a lower magnet moment than the biasing yoke. | 01-31-2013 |
20130063834 | Head Assembly with Head-Media Spacing Control - A head assembly including one or more transducer elements for controlling head-media spacing is disclosed. The assembly includes detection circuitry configured to receive an input detection signal responsive to the spacing between the head and the data storage media and provide an output measure indicative of the head-media spacing. The output signal is utilized by control circuitry to provide a control input to one of a plurality of transducer elements on the head to protrude a localized portion of the head to adjust head-media spacing. | 03-14-2013 |
20130065084 | Tuned Shunt Ratio For Magnetic Sensors - Various embodiments can have a data read stack positioned on an air bearing surface (ABS). The data read stack may be disposed between first and second buffer layers, where at least one of the buffer layers can be configured to provide a predetermined shunt ratio for the data read stack. | 03-14-2013 |
20140002930 | MAGNETIC ELEMENT WITH BIASED SIDE SHIELD LAMINATION | 01-02-2014 |
20140004385 | MAGNETIC ELEMENT WITH TOP SHIELD COUPLED SIDE SHIELD LAMINATION | 01-02-2014 |
20140004386 | Magnetic Element with Biasing Structure Distal the Air Bearing Surface | 01-02-2014 |
20140146419 | MAGNETIC ELEMENT WITH CROSSED ANISOTROPIES - A magnetic element may be configured with at least a magnetic stack having first and second magnetically free layers that each has a predetermined stripe height from an air bearing surface (ABS). The first and second magnetically free layers can respectively be configured with first and second uniaxial anisotropies that are crossed in relation to the ABS and angled in response to the predetermined stripe height. | 05-29-2014 |
20140268428 | COUPLING FEATURE IN A TRILAYER LAMINATION - A data storage device may be generally directed to a data transducing head capable of magnetoresistive data reading. Such a data transducing head may be configured with at least a trilayer reader that contacts and is biased by a coupling feature. The coupling feature may have a smaller extent from an air bearing surface (ABS) than the trilayer reader. | 09-18-2014 |
20140340792 | Magnetic Element with Biasing Structure Distal the Air Bearing Surface - An apparatus can be generally directed to a magnetic stack having a magnetically free layer positioned on an air bearing surface (ABS). The magnetically free layer can be biased to a predetermined magnetization in various embodiments by a biasing structure that is coupled with the magnetically free layer and positioned distal the ABS. | 11-20-2014 |
20150062757 | Magnetic Stack with Different Areal Extents on an Air Bearing Surface - A data reader may be configured at least with a magnetic stack that has a first magnetic layer separated from a second magnetic layer by a non-magnetic spacer layer. The first magnetic layer may have an areal extent on an air bearing surface (ABS) that differs from the second magnetic layer while the second magnetic layer can be configured with a first plurality of linear sidewalls that are each angled with respect to a second plurality of linear sidewalls of the first magnetic layer. | 03-05-2015 |
20150070799 | Depolarizing Layer in a Magnetic Stack - A data reader may be configured at least with a magnetic stack positioned on an air bearing surface (ABS) and contacting a spin depolarizing layer that is a minority spin current carrier. The spin depolarizing layer can have a thickness and spin diffusion length corresponding to a net zero spin polarization at an interface of the magnetic stack and spin depolarizing layer. | 03-12-2015 |
20150070800 | Injector Stack with Diffusive Layer - A data reader may be configured at least with detector and injector stacks that each has a common spin accumulation layer. The detector stack may positioned on an air bearing surface (ABS) while the injector stack is positioned distal the ABS. The injector stack can have a diffusive layer with a larger spin diffusion length than mean free path. | 03-12-2015 |