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| Number | Title | Issue Date |
| 8037593 | Method for manufacturing an ultra narrow gap magnetoresistive sensor A method for manufacturing a magnetoresistive sensor that decreases the stack height of the sensor. The method includes forming a sensor structure having at its top, a Ru layer and a Ta layer over the Ru layer. An annealing process is performed to set the magnetizat... | 10/18/2011 |
| 7650684 | Method for fabricating a magnetic head including a read sensor A method for fabricating a magnetic head including a spin valve sensor having a sensor layer stack that includes a pinned magnetic layer, a spacer layer formed on the pinned magnetic layer, and a free magnetic layer formed on the spacer layer. In a preferred embodim... | 01/26/2010 |
| 7633713 | Method for controlling the formation of the trailing shield gap during perpendicular head fabrication and head formed thereby A method for controlling the formation of the trailing shield gap during perpendicular head fabrication and head formed thereby are disclosed. The in-situ trailing shield gap deposition process removes the pre-sputter process that can damage the write pole material.... | 12/15/2009 |
| 7549209 | Method of fabricating a magnetic discrete track recording disk A method of forming a discrete track recording pattern in a magnetic recording disk. In one embodiment, the discrete track recording pattern may be formed in a NiP layer continuous throughout the discrete track recording pattern. Alternatively, the discrete track re... | 06/23/2009 |
| 7467458 | Method for use in making a read head Methods of making a read sensor with a selectively deposited lead layers are disclosed. In one illustrative example, the method includes the acts of forming a plurality of read sensor layers over a wafer; forming a monolayer photoresist to mask the plurality of read... | 12/23/2008 |
| 7441324 | Method for preventing magnetic damage to a GMR head during back-end processing A method is provided for preserving the transverse biasing of a GMR (or MR) read head during back-end processing. In a first preferred embodiment, the method comprises magnetizing the longitudinal biasing layers of the read head in a transverse direction, so that th... | 10/28/2008 |
| 7409759 | Method for making a computer hard drive platen using a nano-plate Provided is a method and system for manufacturing a hard drive platen. The method includes depositing two or more types of film around a central core to form a plurality of film layers, each film layer being of a different type than its adjacent layers. Next, the de... | 08/12/2008 |
| 7397625 | Large protrusion recording head for controlled magnetic spacing recording/reading A magnetic head structure having enhanced protrusion and having a first pole structure, a second pole structure forming a yoke with the fist pole, a coil structure disposed in the yoke, and a layer of partially cured polymer operatively coupled to the yoke. Also dis... | 07/08/2008 |
| 7394621 | Using bilayer lithography process to define neck height for PMR A method for independently forming neck height (NH) and pole width dimensions in a main pole layer of a PMR write head is described. A main pole layer with a pole tip region is formed on a bottom yoke. The pole tip region is trimmed by an ion milling process to give... | 07/01/2008 |
| 7370404 | Method for resetting pinned layer magnetization in a magnetoresistive sensor A spin valve sensor in a read head has a spacer layer which is located between a self-pinned AP pinned layer structure and a free layer structure. The free layer structure is longitudinally stabilized by first and second hard bias layers which abut first and second ... | 05/13/2008 |
| 7365948 | Exchange-coupled film, method for making exchange-coupled film, and magnetic sensing element including exchange-coupled film An exchange-coupled film includes a seed layer, an antiferromagnetic layer, and a ferromagnetic layer. The seed layer is formed at a thickness that is larger than the critical thickness, and the thickness of the seed layer is then decreased by etching so as to be sm... | 04/29/2008 |
| 7360291 | Method of manufacturing a recording tape cartridge A recording tape cartridge including: a reel, and gear teeth are provided at an inner side of a floor portion of a reel hub on which a recording tape is wound; a case which accommodates the reel, and an engaging projection is formed at a surface of the case opposing... | 04/22/2008 |
| 7359148 | Thin film magnetic head including NiPRe alloy gap layer It is an object to provide a thin film magnetic head capable of improving characteristics and properties required of a gap layer by, in particular, appropriately controlling the compositional ratio of a NiPRe alloy used as the gap layer. A NiPRe alloy which has exce... | 04/15/2008 |
| 7352529 | Magnetic recording medium and magnetic recording and reproducing device using a magnetic recording layer formed with a predetermined concavo-convex pattern A magnetic recording medium including at least a disk substrate 1A, a magnetic recording layer 5 formed with a predetermined concavo-convex pattern on the disk substrate 1A, and a non-magnetic layer 6 filled into concave portions of the c... | 04/01/2008 |
| 7336444 | Magnetic head assembly Vibrations in a magnetic head assembly equipped with a magnetic head, caused by the effects of the flow of air arising from the high-speed rotation of a magnetic disk, can be suppressed by affixing a damping material to the magnetic head assembly. As a result, accur... | 02/26/2008 |
| 7330338 | Method for adjusting pitch and roll in a head suspension Apparatus and method for adjusting at least one of a pitch and roll parameter of a gimbal for a head suspension assembly having a pair of members contacting at least one gimbal arm at spaced apart locations and having an additional member contacting the gimbal arm i... | 02/12/2008 |
| 7324307 | Plated base plate for suspension assembly in hard disk drive A swage mount that includes a flange, having a first side and a second side, and a cylindrically shaped hub. The hub is primarily comprised of a metal (such as stainless steel), and extends from the second side of the flange, and has an inner surface and an outer su... | 01/29/2008 |
| 7320166 | Speed sensor encoder wheel and method of making A method of making an encoder for use in a speed sensor includes providing a metal tube. A material containing ferrite is then extruded over the metal tube to produce an encoder tube. The encoder tube is cut to a given length to form an encoder. The encoder is then ... | 01/22/2008 |
| 7319572 | Thin film coil and method of forming the same, and thin film magnetic head and method of manufacturing the same Provided are a thin film coil formed at high densities, a method of forming a thin film coil, a thin film magnetic head which includes the thin film coil and thus enables ensuring stable recording characteristics while coping with a higher recording density, and a m... | 01/15/2008 |
| 7313855 | Method of forming a head suspension with an integral boss tower A method of making a multi-piece head suspension for a rigid disk drive. The method includes providing a first layer including a mounting region with an integral boss tower attached to a stiffener by one or more positioning tabs; attaching a second layer including a... | 01/01/2008 |
| 7312957 | Current-perpendicular-to-the-plane structure magnetoresistive element having sufficient sensitivity A current-perpendicular-to-the-plane (CPP) structure magnetoresistive element includes an electrode layer contacting a magnetoresistive film. A low resistance region is defined to extend rearward along the boundary of the magnetoresistive film from the front end exp... | 12/25/2007 |
| 7310869 | Flat connector, ink jet head and method of manufacturing them The ink jet head is provided with a piezo-electric sheet having a plurality of contacts distributed on a surface thereof. A flat connector is fixed so as to cover the surface of the piezo-electric sheet. A plurality of conductive spots and a plurality of conductive ... | 12/25/2007 |
| 7306743 | Recording medium, method of manufacturing recording medium and recording apparatus A recording medium includes a substrate, and a recording layer formed on the substrate having (a) a recording track band, and (b) recording cells regularly arrayed in the recording track band to form a plurality rows of sub-tracks. The recording cells included in ea... | 12/11/2007 |
| 7300595 | Method for filling concave portions of concavo-convex pattern and method for manufacturing magnetic recording medium A method for filling concave portions of a concavo-convex pattern by which the concave portions of the concavo-convex pattern can be filled to flatten the surface with reliability, and a method for manufacturing a magnetic recording medium by which a magnetic record... | 11/27/2007 |
| 7299536 | Method for an improved magnetic head arm assembly A system and method for an improved magnetic head arm assembly (HAA), reducing complexity of design and difficulty of manufacture, is disclosed. ... | 11/27/2007 |
| 7301724 | Transducing head Determining an error in position of at least two heads coupled to a piezoelectric material, and changing a potential applied to a piezoelectric material to reduce the error in position of the at least two heads. ... | 11/27/2007 |
| 7293351 | Apparatus for protecting and merging a head stack assembly An apparatus for protecting and merging a head stack assembly with a disc stack of a data storage device. The head stack assembly comprises a cantilevered flexure which supports a transducer at a distal end thereof. A carrier includes a carrier support surface arran... | 11/13/2007 |
| 7283334 | Method for fabricating seed layer for spin valve sensor for magnetic heads for hard disk drives A magnetic head having a spin valve sensor that is fabricated utilizing an Al2O3, NiMnO, NiFeCr seed layer upon which a typical PtMn spin valve sensor layer structure is subsequently fabricated. The preferred embodiment fabrication process of t... | 10/16/2007 |
| 7275304 | Method of forming a hard bias structure in a magnetic head A hard bias (HB) structure for biasing a free layer in a MR sensor within a magnetic read head is comprised of a main biasing layer with a large negative magnetostriction (λS) value. Compressive stress in the device after lapping induces a strong in-plan... | 10/02/2007 |
| 7273563 | Method for manufacturing a magnetic recording medium A method for manufacturing a magnetic recording medium is provided, which can efficiently manufacture a magnetic recording medium that includes a recording layer formed in a concavo-convex pattern and has good recording and reproduction characteristics. The method i... | 09/25/2007 |
| 7263762 | Method for reducing pole height loss in the formation of a write pole for a magnetic write head A method for reducing plated pole height loss in the formation of a write pole for a magnetic write head is disclosed. The method includes forming a conductive layer on a thin film substrate, forming a photoresist layer on the conductive layer and forming a trench i... | 09/04/2007 |
| 7260884 | Method of manufacturing a drum assembly associated with video tape machine A method of manufacturing a drum assembly associated with a digital betacam video tape machine is disclosed. The method includes providing a helical scan drum assembly having a stationary upper drum, a stationary lower drum and a plurality of rotating read/write hea... | 08/28/2007 |
| 7249405 | Method for manufacturing a magnetic medium Disclosed is a magnetic recording medium and a method for manufacturing the same to provide a magnetic recording medium reducing medium noise and having excellent thermal stability. The magnetic recording medium includes a substantially amorphous seed layer and a po... | 07/31/2007 |
| 7247251 | Method for manufacturing a magnetic recording medium A method for manufacturing a magnetic recording medium is provided, which can efficiently manufacture a magnetic recording medium that includes a recording layer formed in a concavo-convex pattern, has a sufficiently flat surface, and provides good recording and rep... | 07/24/2007 |
| 7240418 | Method of manufacturing slider of thin-film magnetic head A slider includes a slider main body and a thin-film magnetic head element. The slider main body has an air bearing surface, an air inflow end, and an air outflow end. The air bearing surface has a first part closer to the air outflow end, a second part closer to th... | 07/10/2007 |
| 7236328 | Method for producing a transducer slider with tapered edges The present invention relates to a method for producing a transducer slider. The method involves first coating a substrate with a radiation-sensitive layer and exposing the radiation-sensitive layer to radiation according to an intensity pattern. Preferably, the int... | 06/26/2007 |
| 7222410 | Method of assembly of a disk drive including engaging first and second VCM plates while maintaining a holding force against the first VCM plate A method of assembly of a disk drive including providing a disk drive base. The method further includes providing a first VCM plate with an attached first magnet. The method further includes applying a holding force against the first VCM plate for holding the first ... | 05/29/2007 |
| 7219413 | Adjusting system and method for head slider mounting regions on head suspensions A method for adjusting static attitude of a head suspension is provided that includes providing an adjustment pin and adjusting the static attitude of a supported head suspension by contacting the head suspension with the adjustment pin to cause a predetermined atti... | 05/22/2007 |
| 7194802 | Tool for certifying a head-gimbal assembly A device and method for testing a slider of a head-gimbal assembly during disc drive manufacturing. The device includes a test disc, an actuator arm and a control module. The test disc has a first circumferential area for detecting contact between the slider and the... | 03/27/2007 |
| 7181826 | Process for protecting a magnetic head A system and method are provided for manufacturing a magnetic head. Initially, a coil structure, a first pole layer, and a gap layer are formed. A second pole layer is then deposited to form a pair of flanking portions flanking a central portion of the second pole l... | 02/27/2007 |
