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| Number | Title | Issue Date |
| 8000175 | Thermally assisted magnetic head having a semiconductor surface-emitting laser A thermally assisted magnetic head includes: a slider having a medium-facing surface; and a surface-emitting semiconductor laser. The slider has: a slider substrate, on which part of the medium-facing surface is formed; and a magnetic head portion, on which another ... | 08/16/2011 |
| 7995425 | Power control of TAMR element during read/write transition A slider mounted TAMR (Thermal Assisted Magnetic Recording), DFH (Dynamic Flying Height) type read/write head using optical-laser generated surface plasmons in a small antenna to locally heat a magnetic medium, uses the same optical laser at low power to pre-heat th... | 08/09/2011 |
| 7969826 | Thermally assisted magnetic recording head having movable mirror for optical switching In a thermally assisted magnetic recording head support mechanism, an increase in the temperature of a heat source for supplying an optical near-field transducer with light, due to heat generation by the heat source, is checked while holding back an increase in weig... | 06/28/2011 |
| 7944780 | Magnetic recording device and magnetic recording head drive mechanism having a magnetic applying section of a specific length Provided is a magnetic recording device which can perform high density magnetic recording by simple constitution. The magnetic recording device is provided with a disk driving device for rotating a magnetic disk; a head having a heating section for heating a circula... | 05/17/2011 |
| 7933169 | Optical head for near-field recording and reproducing device A near-field optical probe and optical near-field generator are provided. A problem of a probe having a scatterer in which optical near-field noises are generated at the parts other than for a point at which an intense optical near-field is generated, is solved. In ... | 04/26/2011 |
| 7898908 | Head for thermally assisted magnetic recording device and thermally assisted magnetic recording device To reduce background light generated in a circumference of a scatterer in a head for a thermally assisted magnetic recording device using a scatterer having conductivity as an optical near-field generating element, a coil for generating a magnetic field is placed on... | 03/01/2011 |
| 7755978 | Recording head and recorder A recorder has a recording head which uses light for information recording to a recording medium. The recording head has a slider and an optical waveguide. The slider moves relative to the recording medium while floating thereon. The optical waveguide is provided in... | 07/13/2010 |
| 7663981 | Optically assisted magnetic recording device with semiconductor laser, optically assisted magnetic recording head and magnetic disk device The present invention provides a magnetooptic device, a magnetooptic head, and a magnetic disk drive each capable of performing optically assisted magnetic recording and each having a small size, improved recording density, and a higher transfer rate. In a magnetoop... | 02/16/2010 |
| 7652954 | Thermally assisted recording head with magnetic pole integrated into optical aperture for dual gradient recording A write head structure for perpendicular recording having a pole tip integrated into the metal film surrounding a C aperture near field light source is disclosed. The close proximity of the pole tip to the light source enables more precise location of data cells wri... | 01/26/2010 |
| 7602674 | Optical recording medium and optical recording and reproducing method using this optical recording medium An optical recording medium 10 is recorded and reproduced with irradiation of light L and recorded pits are recorded with irradiation of light L through an objective lens 4 of which numerical aperture is greater than 1, at least a silicon layer 3 | 10/13/2009 |
| 7330335 | Magnetic recording medium, magnetic recording apparatus and magnetic recording method A magnetic recording medium capable of alleviating thermal fluctuation and improving the recording density includes a functional layer (12) containing a magnetic material, and a recording layer (11) overlying the functional layer and containing a magne... | 02/12/2008 |
| 7327639 | Hybrid writing and reading head to record data with high density A hybrid head to record and reproduce high density data. The hybrid head to record and reproduce data includes an element to record and reproduce data which is formed at the back side of a slider. The element to record and reproduce data includes an energy source to... | 02/05/2008 |
| 7327667 | Semiconductor laser and associated drive circuit substrate A single monolithic semiconductor substrate comprises a first side and a second side. The first side includes an air bearing surface. A laser integrates with the first side. The laser has an emission facet substantially co-planer with the air bearing surface. A cont... | 02/05/2008 |
| 7324411 | Thin-film coil, coil driving circuit and magnetic head A thin-film coil include a substrate and first and second spiral coils of bifilar winding. Each of the first and the second coils includes an outer circumferential end and an inner circumferential end. The outer circumferential ends of the first and the second spira... | 01/29/2008 |
| 7289421 | Optical pickup head of optical recording reproducing apparatus, fabrication method thereof, lubricant-coated optical pickup head of optical recording reproducing apparatus and lubricant coating method thereof In an optical pickup head of an optical recording reproducing apparatus, a fabrication method thereof, a lubricant-coated optical pickup head of an optical recording reproducing apparatus and a method for coating lubricant onto an optical pickup head, by using a MEM... | 10/30/2007 |
| 7280578 | Near-field light source device, and optical head, optical device, exposure apparatus and microscope device having such a near-field light source device A near-field light source device including a semiconductor laser comprised of laminated semiconductor layers and having a ring-type optical resonator with a plurality of wave guides connected via mirror portions, a light blocking film formed in one of the mirror por... | 10/09/2007 |
| 7274626 | Magneto-optical recording using a heating element A perpendicular magnetic recording medium for thermo-magnetic printing has an ultra-high recording density and is resistant to thermal decay of magnetization. An intermediate layer of the medium is provided between a first recording layer using a low-noise Co alloy ... | 09/25/2007 |
| 7272079 | Transducer for heat assisted magnetic recording An apparatus for concentrating electromagnetic energy comprises a metallic transducer including a first section and a second section, wherein the first section is wider than the second section and has a width to length aspect ratio greater than or equal to a width t... | 09/18/2007 |
| 7263039 | Micro-actuator, manufacturing method thereof, optical pickup head of optical recording/reproducing apparatus with micro-actuator and manufacturing method thereof A micro-actuator, its manufacturing method, an optical pickup head of an optical recording/reproducing apparatus having the micro-actuator, and its manufacturing method are disclosed. A low voltage and low power bi-directional driving is accomplished so that a size ... | 08/28/2007 |
| 7251089 | Storage medium with overcoat layer for enhanced heating A data storage system includes a magnetic storage medium and a write head configured to be positioned adjacent the storage medium and. The write head includes a magnetic field source configured to apply a magnetic field to the storage medium and an optical near fiel... | 07/31/2007 |
| 7215629 | Magnetic recording device for heat assisted magnetic recording A magnetic recording device is provided according to the present invention for magnetic recording on a recording medium. The magnetic recording device includes a planar waveguide having a propagation axis. The planar waveguide allows light received thereby to propag... | 05/08/2007 |
| 7177550 | On-axis laser receiver wavelength demultiplexer with integral immersion lensed detectors The present invention is directed to a laser communication receiver for wireless optical communication. A laser communication receiver includes a diffractive optical element to permit detectors at different spatial locations to detect different wavelengths of the op... | 02/13/2007 |
| 7161894 | Optical recording article Optical recording articles, such as tapes, and methods of making and using such articles are disclosed. ... | 01/09/2007 |
| 7161875 | Thermal-assisted magnetic memory storage device A thermal-assisted probe based magnetic memory storage device. In a particular embodiment, magnetic tunnel junction memory cells and at least one movable probe with a tip characterized by a conductor and a heat generator are provided. The movable probe may be placed... | 01/09/2007 |
| 7158470 | Near-field optical head system with integrated slider and laser A near-field optical apparatus having one or more solid state lasers and an aerodynamically shaped slider which comprise a single integrated, monolithic device fabricated from the same base semiconductor material. The monolithic optical head can be quickly and easil... | 01/02/2007 |
| 7155732 | Heat assisted magnetic recording head and method A magnetic recording head comprises a write pole having a pole tip adjacent to an air bearing surface, a return pole, a near field transducer positioned adjacent to the air bearing surface for producing near field radiation for heating a portion of a magnetic storag... | 12/26/2006 |
| 7151785 | Optoelectronic devices and methods of production The invention includes both devices and methods of production. A device in accordance with the invention includes a top surface and a bottom surface, a through wafer via extending from the top surface to the bottom surface, an optoelectronic structure and an ion imp... | 12/19/2006 |
| 7133230 | Recording head and information recording apparatus To generate a satisfactory recording magnetic domain on a recording medium and to improve the durability of a recording head, an information recording apparatus for generating an optical near field and thermo-magnetically recording information on the recording mediu... | 11/07/2006 |
| 7127729 | Magneto-optical head and magneto-optical disk drive A magneto-optical head including a lens forming a light spot on a storage disk, a magnetic field generating coil arranged between the lens and the disk to surround the optical center of the lens, and an annular heat sink arranged around the coil. The distance betwee... | 10/24/2006 |
| 7102992 | Contact optical head for data storage Techniques and devices based on contact optical heads in optical storage devices and systems. In one implementation, a load actuator is provided in an optical storage device and is operable to apply a force to cause the optical head to contact the optical disk at a ... | 09/05/2006 |
| 7069569 | Near-field optical head system with integrated slider and laser A near-field optical system having one or more solid state lasers and an aerodynamically shaped slider which comprise a single integrated, monolithic device fabricated from the same base semiconductor material. The monolithic optical head can be quickly and easily a... | 06/27/2006 |
| 7069568 | Record head for thermally assisted magnetic recording A record head for the thermally assisted magnetic recording on a storage medium. The head has an inductive section, which includes a magnetic circuit having a record flux guide ending in a record pole, and an optical section, which includes an optical guide ending i... | 06/27/2006 |
| 7054255 | Near field information recording/reproduction apparatus having waveguide with reflection surface A near-field optical head has a minute structure formed in the support member for interacting with a recording medium via near-field light. An optical waveguide is provided on the support member for guiding light between a light source and the minute structure. The ... | 05/30/2006 |
| 7054234 | Near-field high density magneto-optical recording head A recording head for decreasing recording noise accompanying malformation of a recorded mark and to form the recorded mark capable of increasing reproduction resolution at the time of magnetic reproduction. The head has a light source and a scatterer for recording i... | 05/30/2006 |
| 7042098 | Bonding pad for a packaged integrated circuit An integrated circuit is packaged using a package substrate that has a bottom side with a regular array of connection points and a top side with the integrated circuit on it. Vias in the package substrate provide electrical connection between the top and bottom side... | 05/09/2006 |
| 7039926 | Optical disk apparatus with fine tracking mechanism An optical disk apparatus includes an objective lens system for producing a beam spot on an optical disk, a slider movable relative to the optical disk, and a fine tracking mechanism for shifting the beam spot in a radial direction of the optical disk. The objective... | 05/02/2006 |
| 7032231 | Optical pickup device An optical pickup having a blade including a first blade in which an objective lens is mounted and which is made of a reinforced plastics material, and a second blade in which driving coils are mounted and which is made of a magnesium alloy material. Since the first... | 04/18/2006 |
| 6996043 | Optical head apparatus Preceding to the reading out of the recording information of the optical disk by the pick-up, the height of the foreign material existing at the light converging position on the information reading surface is detected by the detector, and when the height of the fore... | 02/07/2006 |
| 6977870 | Optical head having light reflection prevention film, and optical information processing apparatus incorporating the same An optical head has objective lenses that converge a light beam, a light-emitting surface that faces an optical recording medium with an air layer therebetween and from which the light beam converged by the objective lenses exits towards the optical recording medium... | 12/20/2005 |
| 6970400 | Information recording medium with magnetic marks, recording and reproducing apparatus therefor, and head positioning method using detected magnetic leakage fields from the magnetic marks A recording and reproducing apparatus including a recording magnetic head and a reproducing magnetic head with their floating height lowered for high density recordation and reproduction is provided. An information recording medium is provided on which it is possibl... | 11/29/2005 |
