| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 360125330 | Thin film longitudinal recording head | 10 |
| 20090086370 | Thin film magnetic head structure, method of making same and thin film magnetic head - A thin-film magnetic head structure has a configuration adapted to manufacture a thin-film magnetic head configured such that a main magnetic pole layer including a magnetic pole tip on a side of a medium-opposing surface opposing a recording medium, a write shield layer opposing the magnetic pole tip so as to form a recording gap layer on the medium-opposing surface side, and a thin-film coil wound about the write shield layer or main magnetic pole layer are laminated. The magnetic pole tip of the main magnetic pole layer includes an even width portion having a substantially even width along an extending direction. | 04-02-2009 |
| 20120106002 | MAGNETIC WRITE HEADS WITH BI-LAYER WRAP AROUND SHIELDS HAVING DISSIMILAR SHIELD LAYER WIDTHS - Magnetic write heads and corresponding fabrication methods for bi-layer wrap around shields resulting in dissimilar shield layer widths are disclosed. A gap structure is formed around a main write pole for a magnetic write head. A wrap around shield for the main write pole is fabricated to include a first magnetic layer proximate to the main write pole and a second magnetic layer on the first magnetic layer. A width of the first magnetic layer is less than the width of the second magnetic layer, and back edges of the first and second magnetic layers are coplanar. Further, a throat height of the wrap around shield is maintained between the first and the second magnetic layers because their back edges are coplanar. | 05-03-2012 |
| 20170236535 | Tape Head with Step-Like Cross-Sectional Profile | 08-17-2017 |
| 360125410 | Pole adjacent substrate | 3 |
| 20100149688 | PERPENDICULAR-MAGNETIC-RECORDING HEAD WITH LEADING-EDGE TAPER OF A PLANARIZED STEPPED-POLE LAYER HAVING GREATER RECESS DISTANCE THAN A FLARE-POINT OF A MAIN-POLE LAYER - Perpendicular-magnetic-recording head with leading-edge taper of a planarized stepped-pole layer having greater recess distance than a flare point of a main-pole layer. The perpendicular-magnetic-recording head includes a write element including the main-pole layer having the flare point recessed a first distance from a pole tip of the main-pole layer at an air-bearing surface below the air-bearing surface. The write element includes the stepped-pole layer magnetically coupled with the main-pole layer across an interface between the main-pole layer and the stepped-pole layer. The stepped-pole layer has the leading-edge taper recessed a second distance from the pole tip of the main-pole layer at an air-bearing surface below the air-bearing surface. The second distance of the leading-edge taper is greater than the first distance of the flare point. A surface of the stepped-pole layer is planarized with the interface between the main-pole layer and the stepped-pole layer substantially flat over the leading-edge taper. | 06-17-2010 |
| 20120147503 | DOUBLE SHELL WRITERS - An apparatus illustratively includes a return pole (RP) and a shield. The RP has a first RP magnetic layer, a second RP magnetic layer, and a RP non-magnetic layer. The RP non-magnetic layer separates and magnetically decouples the RP first and second magnetic layers. The shield has a first shield magnetic layer, a second shield magnetic layer, and a shield non-magnetic layer. The shield non-magnetic layer separates and magnetically decouples the shield first and second magnetic layers. A method illustratively includes generating magnetic flux and collecting the magnetic flux through an inner magnetic shell. | 06-14-2012 |
| 360125430 | Separate pole tip | 1 |
| 20100296194 | TRANSDUCING HEAD DESIGN FOR MICROWAVE ASSISTED MAGNETIC RECORDING - A magnetic writer includes a write element having a write element tip and a conductive structure adjacent the write element. The conductive structure includes two conductive elements positioned substantially parallel to one another and separated by an electrically insulating material. Each of the conductive elements carries a time-varying signal to generate an oscillating magnetic field from a displacement current between the two conductive elements, with the oscillating magnetic field being proximate the write element tip and extending parallel to the air bearing surface. A frequency of the oscillating magnetic field is a function of a frequency of the time-varying signal. | 11-25-2010 |
| 360125710 | Accessory feature | 4 |
| 360125720 | Protective structure | 4 |
| 20150103441 | SYSTEMS AND METHODS FOR PROTECTING A SENSITIVE DEVICE FROM CORROSION - A magnetic storage system according to one embodiment includes a magnetic head having a removable organic coating thereon in an amount sufficient for reducing exposure of the head to oxidation promoting materials. A kit according to one embodiment includes a drive having a magnetic head, and a tape having an applicator portion for applying an organic coating to the magnetic head for reducing exposure of the head to oxidation promoting materials. | 04-16-2015 |
| 20160055867 | TAPE HEADS WITH SUB-AMBIENT PRESSURE CAVITIES - A unidirectional and bi-directional tape head with sub-ambient pressure cavities. The tape head is adapted for reading and/or writing to a magnetic tape. The tape head includes: a tape-bearing surface; a transducer area, having at least one transducer designed for reading and/or writing to the magnetic tape; and a cavity open on the tape-bearing surface adjacent to the transducer area that extends parallel to the transducer area and transversally to the longitudinal direction of circulation of the tape such that an opening of the cavity faces the tape in operation. The cavity is further dimensioned and arranged with respect to the transducer area to create, upon circulation of the tape in operation, sub-ambient pressure therein. The present invention allows for a very close tape-head spacing. | 02-25-2016 |
| 20160180871 | COATING MAGNETIC TAPE HEADS | 06-23-2016 |
| 20170236533 | TAPE DRIVE WITH METAL OXIDE INTERFACE BETWEEN TAPE AND TAPE HEAD | 08-17-2017 |
