Patent application number | Description | Published |
20100085664 | Head gimbal assembly - [Problem] To provide a head gimbal assembly with a light guide structure and an information recording/reproducing apparatus which make it possible to reduce a cost of manufacture. | 04-08-2010 |
20110007612 | Head gimbal assembly and information recording and reproducing apparatus - There are provided a head gimbal assembly and an information recording and reproducing apparatus capable of easily positioning a light guiding portion and a slider on a tongue portion and performing a stable recording and reproducing operation. A head gimbal assembly recording information on a recording medium using a near-field light includes: a suspension that extends along a surface of the recording medium so as to be deflectable in a thickness direction; a support portion that is provided at a tip end side of the suspension so as to be more deflectable in the thickness direction than the suspension; a light guiding portion that has a support-facing portion provided to the support portion so as to face the support portion and introduces a light flux used for generating the near-field light; and a 3-dimensional structure that is provided to the support portion and used for positioning the support-facing portion on a desired portion of the support portion, wherein the support-facing portion has a portion in which a width of a sectional surface thereof perpendicular in a longitudinal direction of the suspension is larger than a width of a contact surface that makes contact with the support portion. | 01-13-2011 |
20110075527 | Head gimbal assembly using near-field light and information recording and reproducing apparatus including the same - Of side surfaces of a flexible substrate provided on a flexure, one surface opposing an optical fiber forms a mirror surface inclined by a predetermined angle with respect to the longitudinal direction of the optical fiber. Owing to this configuration, the optical fiber is optically coupled to a near-field light element inside a slider. | 03-31-2011 |
20120063277 | Near-field light generating element, method of manufacturing near-field light generating element, near-field light head, method of manufacturing near-field light head, and information recording and playpack device - A method of manufacturing the near-field light generating element includes a first cladding forming process of forming a first cladding on a substrate, a near-field light generation portion forming process of forming metal film base material on the first cladding, a core forming process of forming the core base material so as to cover the metal film base material, a patterning process of patterning the core base material and the metal film base material to form the core and the metal film, and a second cladding forming process of forming a second cladding so as to interpose the core between the second cladding and the first cladding, wherein, in the patterning process, the core base material and the metal film base material are collectively patterned by the same process. | 03-15-2012 |
20120063278 | Near-field light generating element, method of manufacturing near-field light generating element, near-field light head, method of manufacturing near-field light head, and information recording and playback device - A core includes a first core, and a second core covering a side surface of the first core, and is formed in a polygonal shape when viewed from a Z direction. A metal film is placed on a side surface in the core, and is formed so that a width of an interface between the metal film and the core is narrower than a width of the side surface of the core. | 03-15-2012 |
20120113769 | Recording head, method of manufacturing recording head, and information recording and playback apparatus - A near-field light generating element has a core that guides a laser light in a direction of a disk while reflecting the laser light, and a cladding that encapsulates the core in an inner portion, and lengths of a longitudinal direction and a transverse direction of an incident side end surface of the laser light in the core are formed so as to match the lengths of a long axis direction and a short axis direction of the laser light that is entered to the core. | 05-10-2012 |
20120206032 | METHOD OF MANUFACTURING NEAR-FIELD LIGHT GENERATING ELEMENT AND NEAR-FIELD LIGHT GENERATING ELEMENT - A U-shaped groove and a V-shaped groove are formed onto a cladding disposed on a substrate, a core and a metal structure are formed inside the grooves, respectively, and then the substrate surface is planarized. Further, after a cladding is formed again, the substrate is cut and the cut surface is polished such that the metal structure inside the V-shaped groove has a predetermined thickness, thereby forming a scattering body. | 08-16-2012 |
20120230170 | NEAR-FIELD LIGHT GENERATING ELEMENT, NEAR-FIELD LIGHT HEAD, AND INFORMATION RECORDING AND REPRODUCING DEVICE - A metal film is included which is placed between a core and a cladding, propagates a laser beam along an interface between the core and the cladding, and generates a near-field light from the laser beam. The metal film has a base portion placed on one side surface of the core along a propagation direction of the laser beam facing from one end side toward the other end side, and an extending portion extended from the other end side of the base portion to the other end side in the propagation direction rather than the core. The other end side of the extending portion is exposed to the outside, and is formed with a top portion projected toward the core side when viewed from the propagation direction. | 09-13-2012 |
20120237797 | MAGNETIC RECORDING MEDIUM - A recording layer is formed on a substrate, and a high thermal conductor having a thermal conductivity higher than that of the recording layer is disposed inside a plurality of recording bit regions constituting the recording layer, respectively. Furthermore, the recording layer is formed with a separating portion which divides the recording layer into the plurality of recording bit regions. The separating layer is filled with a low thermal conductor having a thermal conductivity lower than that of the recording layer. | 09-20-2012 |
Patent application number | Description | Published |
20090028007 | Near-Field Optical Head and Information Recording Apparatus - The invention is a near-field optical head that generates near-field light to heat a predetermined area of a medium and applies a magnetic field to the predetermined area to record information, the head including an optical waveguide | 01-29-2009 |
20100002550 | NEAR FIELD LIGHT ASSIGNED MAGNETIC RECORDING HEAD AND RECORDING APPARATUS USING THE SAME - A near field light assisted magnetic recording head | 01-07-2010 |
20100046111 | RECORDING HEAD AND DATA RECORDING AND REPRODUCING APPARATUS - There is provided a recording head | 02-25-2010 |
20100091619 | NEAR- FIELD OPTICAL HEAD AND INFORMATION RECORDING / REPRODUCING DEVICE - A near-field optical head includes: a slider which has an opposedly-facing surface which faces a surface of a magnetic recording medium; an optical flux introducing means which introduces the optical flux toward the opposedly-facing surface; a first inclined surface | 04-15-2010 |
20100284252 | NEAR FIELD OPTICAL HEAD AND INFORMATION RECORDING AND REPRODUCING DEVICE - A near field optical head includes a slider | 11-11-2010 |
20110122736 | NEAR-FIELD OPTICAL HEAD AND INFORMATION RECORDING/REPRODUCING DEVICE - A near-field optical head includes: a near-field light generating element, formed on a counter surface of a slider facing the surface of a magnetic recording medium and having two or more side surfaces each of which are in contact with the counter surface at a certain angle with the counter surface, for generating the near-field light; at least one lower wiring formed on at least one of the side surfaces of the near-field light generating element; a thin-film-like magnetic pole disposed to a position covering the lower wiring; at least one upper wiring disposed on one of the two sides of the magnetic pole, opposite to the side on which the lower wiring is disposed; at least one side surface wiring connecting the lower wiring and the upper wiring; insulating layers insulating each of the lower wiring, the magnetic pole, and the upper wiring from the others; and a coil wound around the magnetic pole by connecting the lower wiring and the upper wiring alternately and serially using the side surface wiring. | 05-26-2011 |
20110122738 | INFORMATION RECORDING AND REPRODUCTION APPARATUS - The present invention relates to an information recording and reproduction apparatus which records the information on a disk by heating the disk with near-field light and causing magnetization reversal by applying a recording magnetic field to the disk. An optical waveguide | 05-26-2011 |
20110188355 | INFORMATION RECORDING AND REPRODUCTION APPARATUS - The present invention relates to an information recording and reproduction apparatus which records the information on a disk by heating the disk with near-field light and causing magnetization reversal by applying a recording magnetic field to the disk. A photoelectric composite wiring line | 08-04-2011 |
20110199868 | INFORMATION RECORDING AND REPRODUCTION APPARATUS - The present invention relates to an information recording and reproduction apparatus | 08-18-2011 |