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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 8134893 | Optical recording head and optical recording apparatus Provided is an optical recording head in which a light beam from a light source is collected by an optical element and reflected on a reflecting surface to be formed into a spot light. Since a support portion for supporting the light source of the optical element at... | 03/13/2012 |
| 7965586 | Magnetization detecting method and apparatus A detection method and apparatus for reading magnetization information recorded in high density. A metal probe is brought close to the surface of a magnetic recording medium, in which information is recorded as magnetization, with the distance on the order of nanome... | 06/21/2011 |
| 7420886 | Magnetic recording medium, and thermal stability measuring method and apparatus of magnetic recording medium There is disclosed a magnetic recording medium in which a seed layer, under layer, intermediate layer, first magnetic layer, nonmagnetic layer, second magnetic layer, protective layer, and lubricant layer are successively laminated on a glass substrate, the nonmagne... | 09/02/2008 |
| 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 |
| 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 |
| 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 |
| 7310206 | Magnetic thin film head with heat-assisted write section and hard disk drive incorporating same A thin film magnetic read/write head for use in magnetic data storage systems to enable writing of data to a magnetic data storage medium with the assistance of laser heating. The read/write head allows magnetic reading of data from the storage medium, and thermally... | 12/18/2007 |
| 7289300 | Piezoelectric motor for moving a carriage along a guide In one embodiment, an actuator comprises a stationary guide, a carriage movable along the guide, and a piezoelectric motor operatively coupled to the carriage and pushing on the guide such that the motor when energized moves with the carriage along the guide. ... | 10/30/2007 |
| 7283332 | Suspension with improved gimbal A suspension includes a load beam section and a gimbal section, which is formed with the load beam section as a single, continuous piece of material, having a top surface and a bottom surface. The gimbal section has a first end formed with to the load beam section a... | 10/16/2007 |
| 7283331 | Method and apparatus reducing off track head motion due to disk vibration in a hard disk drive The invention includes sliders provided with indented surfaces, reducing the roll center for head gimbal assemblies below the effective thickness of the slider. Head gimbal assemblies built with these sliders may reduce off-track displacements induced by disk vibrat... | 10/16/2007 |
| 7280298 | Thin film magnetic head fit to recordation of higher frequency A set of coils wind around a magnetic core in a thin film magnetic head. Current supplying circuits are separately connected to the individual coils. The individual coils get shorter in the overall length as compared with the case where a set of coils consist of a s... | 10/09/2007 |
| 7280314 | Lower saturation field structure for perpendicular AFC pole A magnetic write head for perpendicular magnetic recording having a laminated write pole with improved low saturation field. ... | 10/09/2007 |
| 7277363 | Magneto-optical recording or reproducing device A magneto-optical recording or reproducing device having an information erasing means for erasing information or data recorded on a magneto-optical recording medium. According to the invention, the information erasing means comprises an erasing magnet having a field... | 10/02/2007 |
| 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 |
| 7268973 | Perpendicular magnetic head having thermally assisted recording element A perpendicular magnetic head including a media heating element that is fabricated within the magnetic head structure. The heating element is preferably fabricated above the first magnetic pole layer close to the ABS surface of the head. In one embodiment, following... | 09/11/2007 |
| 7266058 | Objective lens drive having optical axis adjustment function An objective lens drive having an optical axis adjustment function. An objective lens is supported by a lens holder, and the lens holder is supported on a suspension holder by way of a suspension. The suspension holder is supported so as to be rotatable about an axi... | 09/04/2007 |
| 7264405 | Optical module An optical module of the present invention comprises first and second optical devices, a circuit board for outer connection, and a flexible substrate on which a part or all of an electronic circuit device group for each of the optical devices is mounted to electrica... | 09/04/2007 |
| 7262936 | Heating device and magnetic recording head for thermally-assisted recording A heating device for a magnetic recording head includes first and second separating layers, the first separating layer having preferably a higher or equal thermal resistance than the first separating layer, and a heater formed between the first and second separating... | 08/28/2007 |
| 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 |
| 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 |
| 7206175 | Magnetoresistive head having defined relationships between the tract width and magnetization film thickness product to permit no hysteresis in the transfer curve In a narrow magnetoresistive head having a magnetic domain control film comprising a single layer of magnetic film or magnetic films antiferromagnetically coupled by means of a nonmagnetic member, it has been found that the magnetic domain can be controlled with a s... | 04/17/2007 |
| 7203147 | Storage medium initialization method, and recording and reproducing method and apparatus A storage medium initializing method includes the steps of detecting a mode corresponding to a recording format to be loaded on a storage medium; and initializing the storage medium according to the mode detected in the detecting step. A recording and reproducing me... | 04/10/2007 |
| 7196975 | Magneto-optical disk with protective layer, and optical disk device On a pit information surface (22d) of a read-only optical disk (22), a protective layer (22f) suited for a floating-type or a sliding-type magnetic head (3) used for a magnetic field modulation type magneto-optical disk is f... | 03/27/2007 |
| 7187520 | Magnetic head having thermally assisted recording device, and method of fabrication thereof A magnetic head including a media heating device that is fabricated within the magnetic head structure. The media heating device includes an electrically resistive element that is fabricated above the first magnetic pole layer close to the ABS surface of the head. A... | 03/06/2007 |
| 7170713 | Heat sink for a magnetic recording head An effective heat sink is provided for a magnetic recording head. The heat sink conducts heat away from the recording head thus limiting the range of temperatures to which the recording head is subjected. A heat sink on a recording head significantly reduces heat in... | 01/30/2007 |
| 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 |
| 7159228 | Converter support device with slider A converter that records or reproduces information to or from a recording medium while making a movement relative to the recording medium is mounted on a slider. The slider has at least a pair of openings on a side face thereof, and airflow generated by the movement... | 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 |
| 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 |
| 7110327 | Magneto-optical recording and reproducing method, using reproducing layer with high saturation magnetization A magnetic recording medium comprises, on a substrate, a recording auxiliary layer, a recording holding layer, recording control layer, and a recording layer. The recording layer is constructed by using a ferri-magnetic material having perpendicular magnetization. T... | 09/19/2006 |
| 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 |
| 7099118 | One-piece suspension assembly including interconnect An integrated suspension assembly including interconnect is used to provide an electrical and mechanical connection between an actuation system and a slider. The suspension assembly includes a multi-layer laminate substrate having a base layer, an insulator layer an... | 08/29/2006 |
| 7090933 | Magneto-optical recording medium including a soft magnetic layer, a protective layer and a silane coupling agent layer, in this order The invention is a magneto-optical recording medium characterized by containing at least a soft magnetic layer, a protective layer, a resin layer having a servo pattern formed thereon, a reflecting film, a lower dielectric material film, a recording film, an upper d... | 08/15/2006 |
| 7079329 | Micro actuator for controlling focal depth A micro actuator for controlling a focal depth includes: a lens for forming a focal point by focusing light coming from a light source; a lens mounting unit having a lens mounted therein and allowing the lens to move in one axial direction; and an electromagnetic fo... | 07/18/2006 |
| 7072142 | Apparatus for providing transverse magnetic bias proximate to a pole tip to speed up the switching time of the pole-tip during the writing operation An apparatus for providing transverse magnetic bias proximate to a pole tip to speed up the switching time of the pole-tip during the writing operation is disclosed. The transverse field disposed proximate the pole-tip helps the conventional driving field in rotatin... | 07/04/2006 |
| 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 |
| 7042810 | Thermally-assisted magnetic recording head, method of manufacturing the same, and thermally-assisted magnetic recording apparatus A thermally-assisted magnetic recording head and a magnetic recording apparatus having the magnetic recording head built in are disclosed. The magnetic recording head is capable of recording magnetic information by heating a recording unit of a recording medium and ... | 05/09/2006 |
| 7027248 | Magnetic disk apparatus having an adjustable mechanism to compensate write or heat element for off-tracking position with yaw angle In a thermal assisted type magnetic disk apparatus having a head holding a heat element and a write element, in which coercivity of a disk is locally reduced by temperature-increasing the disk and writing is performed by the write element, along with a seek operatio... | 04/11/2006 |
