Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7466634 | Magnetic field generator and photomagnetic information storage apparatus An object is to provide a magnetic field generator permitting fabrication by a simple manufacturing technique, such as plating, and capable of suppressing the generation of an eddy current as well as a photomagnetic information storage apparatus capable of high spee... | 12/16/2008 |
| 7372648 | Optically-assisted magnetic recording head and optically-assisted magnetic recording apparatus A pair of members opposed to each other via a gap are commonly used as an evanescent light probe and a writing magnetic head. When the spacing and width of the gap are smaller than the wavelength λ of injected light, highly intensive evanescent light is generated f... | 05/13/2008 |
| 7333402 | Magneto-optical head support structures A suspension supporting a magnetic head is formed by a member different in material from gimbals. As a result, the characteristic of the gimbals minimizing electric power loss in supplying current while sufficiently elastically holding the magnetic head can be compa... | 02/19/2008 |
| 7330404 | Near-field optical transducers for thermal assisted magnetic and optical data storage An optical transducer comprises an optical element for directing an electromagnetic wave to a focal region and a metallic nano-structure having a longitudinal axis substantially parallel to an electric field of the electromagnetic wave, the metallic nano-structure b... | 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 |
| 7324425 | Optical disk device having mirror in micro electrical mechanical system An optical disk device in which the laser beam emitted from a laser light source and deflected by a movable mirror is focused on an optical recording medium by an optical head section. Tracking control is carried out by a drive control section based on the laser bea... | 01/29/2008 |
| 7224644 | Head arrangement for domain expansion magnetic amplifying magneto-optical system A head arrangement for reading a magneto-optical recording medium (10) having a storage layer and a read-out layer, includes an improved field generating device for generating a magnetic field used for copying a written mark from said storage layer to said re... | 05/29/2007 |
| 7221626 | Magneto-optical head and magneto-optical storage device A magneto-optical head including a transparent substrate, a coil formed on a first surface of the transparent substrate, a pair of first electrodes formed on a side surface of the transparent substrate so as to be connected to a first end and a second end of the coi... | 05/22/2007 |
| 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 |
| 7146714 | Manufacturing a magneto-optical write/read head A method of manufacturing a digital magneto-optical signal write/read head including a thin-film in-plane magnetic coil disposed on an outwardly directed surface of a coil substrate. Coil lead in and coil lead out sections of the coil are extended to an interconnect... | 12/12/2006 |
| 7129006 | Optical data storage system and method An optical storage system and method having separate, independent format hologram writing and data writing mechanisms to allow optimization of data writing separately from format hologram recording. In its most general terms, the invention comprises an optical mediu... | 10/31/2006 |
| 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 |
| 7027269 | Method of manufacturing a magnetic head having a planar coil A simple method of manufacturing a magnetic head having a head face and including a planar magnetic coil (7) which extends parallel to the head face. According to the method, the magnetic coil is formed at a first side of a first substrate (1). Thereaf... | 04/11/2006 |
| 6963530 | 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... | 11/08/2005 |
| 6947258 | UV curable and electrically conductive adhesive for bonding magnetic disk drive components An electrically conductive adhesive includes a resin component, a photoinitiator, and metal-coated polymer beads. The beads have an average diameter and a very narrow size distribution around the average diameter. The adhesive is applied between a read/write head an... | 09/20/2005 |
| 6942824 | UV curable and electrically conductive adhesive for bonding magnetic disk drive components An electrically conductive adhesive includes a resin component, a photoinitiator, and metal-coated polymer beads. The beads have an average diameter and a very narrow size distribution around the average diameter. The adhesive is applied between a read/write head an... | 09/13/2005 |
| 6937637 | Semiconductor laser and associated drive circuit substrate 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... | 08/30/2005 |
| 6928721 | Method of manufacturing a magnetic read/write head and slider assembly A method of fabricating a magnetic read/write head and slider assembly, wherein the assembly has improved heat spreading and dissipation properties and the read/write head exhibits significantly reduced thermal protrusion during operation. The method of fabrication ... | 08/16/2005 |
| 6925033 | Magnetic head with a permanent-magnet layer structure For high-resolution and low bit-error-rate MAMMOS readout, a magnetic head includes a flat magnetic coil (1) having a coil layer structure (3a, 3b) having an electrically conductive winding (5a, 5b), and... | 08/02/2005 |
| 6876604 | Optically assisted magnetic recording device, 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... | 04/05/2005 |
| 6854125 | Magnetic head A magnetic head is configured so that an aspect ratio w0/h0 of a cross section of a coil (11) is set to be 1 to 4, or preferably, approximately 1.5. This configuration suppresses the heat generation in the magnetic head that performs the magneti... | 02/08/2005 |
| 6757221 | Optical head having object lens and patterned coil An optical head includes a lens carrier movable at least radially of a magneto-optical disk in facing relation thereto. An object lens is mounted on the lens carrier to converge a laser beam for forming a laser spot on the disk. The object lens has an optical axis a... | 06/29/2004 |
| 6704249 | Magnetic head having an irregular surface for heat dissipation A magnetic head includes a dielectric member, a coil and a heat conductor. The dielectric member has an obverse surface held in facing relation to a data storage disk. The coil generates a required magnetic field. The coil is provided in the dielectric me... | 03/09/2004 |
| 6700838 | Planar coil structure for magneto-optical head A coil structure apparatus comprising a yoke portion and a coil portion. The yoke portion substantially surrounds the coil portion. In one aspect, the yoke portion is configured to increase the bias field strength produced by the coil structure while mini... | 03/02/2004 |
| 6697305 | Magnetic head with sectioned magnetic field regulator A magnetic head includes a multi-layer coil for generating a magnetic field, and a flat, magnetic field regulator spaced from the coil along the central axis of the coil. The field regulator is formed with a center hole for passing disk-illuminating light... | 02/24/2004 |
| 6657927 | Optical head and apparatus provided therewith An optical head comprises a laser light source, detectors, a reflecting mirror, a magnetic coil, and a driving circuit which are formed in a monolithic manner on a surface of a substrate. A diffraction grating is formed on the reflecting mirror. A reflect... | 12/02/2003 |
| 6618330 | Magneto-optical head and method of making coil for the same A magneto-optical head includes a slider, an objective lens, a coil and a transparent insulating layer. The coil is provided with upper and lower conductive patterns, wherein the lower pattern is brought closer to a storage medium than the upper pattern i... | 09/09/2003 |
| 6584045 | High speed magnetic coil for magneto-optical head The conductor pattern of a magnetic head coil includes a spiral coil pattern to which a current can be supplied to flow around the magnetic field generation center, and a conductor pattern which is formed outside the coil pattern and cannot receive a curr... | 06/24/2003 |
| 6529448 | High speed magnetic coil for magneto-optical head In a flat magnetic head coil constituted by spiral coil patterns made of a conductive material film and two terminals connected to the coil patterns, the coil patterns have a substantially rectangular sectional shape. A minimum pitch P [μm] of the coil p... | 03/04/2003 |
| 6526001 | Magnetic head A magnetic head of the present invention is to switch a direction of magnetic fields applied to a heated portion in a recording region in accordance with recording information. The magnetic head is composed of a single magnetic pole in a pillar shape and ... | 02/25/2003 |
| 6510109 | Magnetic head including stepped core and magneto-optical recording device using the same A magnetic head for supplying a magnetic field in recording an. information signal to a recording medium is provided. This magnetic head has a substantially. prism-shaped magnetic core portion having a distal end portion cut out to form a step, the magnet... | 01/21/2003 |
| 6130863 | Slider and electro-magnetic coil assembly A slider supports or stores a device such as an electro-magnetic coil assembly, an electronic component, or an optical component, and includes an underside formed of a taper, a flat or patterned air bearing surface, and a recessed region. The recessed reg... | 10/10/2000 |
| 5978319 | Thin electro-magnetic coil assembly for attachment to a slider A coil assembly for use in an optical or a magneto-optical data storage system includes an undercoat and an electrically conductive coil formed of a length of electrical conductor and deposited and secured to the undercoat by means of available wafer proc... | 11/02/1999 |
| 5946275 | Optical readout method with a direction of a magnetic field applied to a recording medium changed with a signal, and a system therefor An optical recording medium, optical recording method with use of it, and optical recording device for it comprise at least one magnetic layer on a substrate, the magnetic layer having a temperature Tco at which sizes of domains of the magnetic layer is s... | 08/31/1999 |
| 5930088 | Optical disc having a protective layer which is thicker at its outer periphery An optical disc having a functional film, formed by a thin metal plate, and a protective film, formed on a transparent substrate, is disclosed. The protective film satisfies a condition dࣙ2d0, where d is a maximum film thickness at an outer p... | 07/27/1999 |
| 5903525 | Coil for use with magneto-optical head A planar micro-coil is provided for use with an optical head. The optical head is preferably a flying magneto-optical head. The micro-coil cooperates with a yoke assembly so to as to permit an optimal magnetic flux density to be formed at a surface of a m... | 05/11/1999 |
