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| Number | Title | Issue Date |
| 8077562 | Optical disc device An optical disc apparatus according to the present invention includes a disc rotation mechanism 2 for allowing an optical disc 1 having an information recording face to be placed thereon and rotating the optical disc 1; an optical pickup 3 | 12/13/2011 |
| 7616532 | Optical disc drive A small-sized optical disc drive includes one voice coil motor magnet within which a tracking coil and two focusing coils are disposed such that the tracking coil straddles the two poles of permanent magnets that are adjacently disposed. The two focusing coils are d... | 11/10/2009 |
| 7480215 | Read write device for optical memory and method therefore A method and miniaturizable device is described to read/write information to an optical storage medium (11). A device comprises one or more light sources (12) bounded up with an access unit (10) which is arranged to be controllable to a position... | 01/20/2009 |
| 7319564 | Objective lens driving apparatus In an objective lens driving apparatus which includes a lens holder (22) provided with a plurality of coils (23, 24) and swingably supported by a suspension wire (28), and a magnet (27) for supplying a driving force to the lens holder by ... | 01/15/2008 |
| 7317675 | Method of manufacturing optical head An integrated unit in which a light source and a light emitting diode are combined into one component is fixed to an optical bench. Then, relative position adjustment of an objective lens actuator is carried out with respect to the optical bench so that a desired de... | 01/08/2008 |
| 7312919 | Wide field of view and high speed scanning microscopy A wide field of view scanning microscope includes a light source, a light detector, optics, a scanning assembly, a translation system, and a data collection control and processing unit. The scanning assembly is constructed to provide from the light source a light be... | 12/25/2007 |
| 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 |
| 7289395 | Optical pickup device of micro optical disc drive An optical pickup device of a micro optical disc drive comprises: a tracking actuator hinge-coupled to a deck rotatably in a tracking direction; a tracking arm coupled to the tracking actuator; a focusing arm connected to the tracking arm rotatably in a focusing dir... | 10/30/2007 |
| 7283434 | Optical pickup device capable of correcting spherical aberration A mirror actuator includes a piezoelectric element having a thickness in a direction perpendicular to a surface of the mirror, and a circular surface bonded to a circular rear surface of the mirror such that the center of the circular surface of the piezoelectric el... | 10/16/2007 |
| 7280443 | Optical pickup device capable of correcting spherical aberration A mirror actuator includes a piezoelectric element bonded at a circular surface to a rear surface of a circular mirror such that the circular surface's center matches that of the rear, circular surface of the mirror. The piezoelectric element receives a potential to... | 10/09/2007 |
| 7239485 | Localized heating element for a suspension assembly The present invention provides a suspension assembly having a slider body with a trailing edge face. A bond pad is positioned on the trailing edge face and a conductive trace is connected to the bond pad to form an electrical connection. A heating element includes a... | 07/03/2007 |
| 7227817 | Low profile optical head An optical head of a type useable in a optical disk reader/writer is provided. The optical head has a low profile, e.g., in a vertical direction parallel to the disk spin axis, such as less than about 5 mm preferably less than about 3 mm. Substantially all component... | 06/05/2007 |
| 7210151 | Heat dissipation member for an optical disk drive The present invention provides a heat dissipation member for use in the optical disk drive. The present invention includes an outer frame and a chassis. The chassis has a drive module, a pickup module and two guide rods. A heat dissipation member is disposed on the ... | 04/24/2007 |
| 7209411 | Method of manufacturing optical head An integrated unit in which a light source and a light emitting diode are combined into one component is fixed to an optical bench. Then, relative position adjustment of an objective lens actuator is carried out with respect to the optical bench so that a desired de... | 04/24/2007 |
| 7136330 | Optical disc apparatus for recording and/or reproducing information on/from an information surface of a rotatable optical disc An optical disc apparatus (1) for recording and/or reproducing information on/from an information surface (3) of a rotatable optical disc (5), includes a supporting assembly (7), a spindle motor (15), associated with the supporting... | 11/14/2006 |
| 7123571 | Compound objective lens with fold mirror A compound objective lens includes a first lens element and a second lens element, the first element including a mirror surface for internally redirecting a radiation beam passing through the first element. The objective lens has a numerical aperture greater than 0.... | 10/17/2006 |
| 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 |
| 7088543 | Suspension having magnetic head assembly mounted thereon and magnetic recording disk drive using the suspension A suspension having a magnetic head assembly 1 mounted thereon is provided, wherein the magnetic head assembly comprises: a write head 1-2; a read head 1-1; and a resistive heating element 1-3 for controlling the flyi... | 08/08/2006 |
| 7079455 | Optical reading and writing system An optical reading and writing system including a base; an optical disk rotatably mounted on the base; an optical pickup including an objective lens, focusing a light beam to form a light spot on a recording surface of the optical disk; an actuator arm mounted on th... | 07/18/2006 |
| 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 |
| 7031116 | Moving magnet voice coil motor using Halbach arrays An information handling system includes a base, a disc rotatably attached to the base, and an actuator assembly movably attached to the base the actuator assembly. An actuator assembly has an opening at the pivot therein. An actuator arm attached to the main body, a... | 04/18/2006 |
| 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 |
| 7016125 | Objective lens-driving apparatus An objective lens driving apparatus is used for accurately positioning an abject to focus a light spot on an optical recording medium. A lens holder holds the objective lens and has a bearing hole through which a shaft extends in a direction parallel to the optical ... | 03/21/2006 |
| 7006426 | Integrated optical unit for use with miniature optical discs Light from a laser diode is directed by mirrors on angled surfaces of an optical unit through a first lens at an optical disc. Light returns from the disc on a parallel path through a second lens and is directed at a photodetector. A semiconductor device controls th... | 02/28/2006 |
| 6970401 | Fringing field focus motor and mechanism for optical disk drive A system for controlling a distance between an optical head and the surface of a rotating optical disk comprising: an actuator arm having a first and second surface, the first surface facing the optical disk, the second surface facing away from the optical disk; an ... | 11/29/2005 |
| 6968561 | Optical library and optical storage system At least an optical disk, a spindle motor, an optical head assembly and a seeking mechanism are mounted in a disk cartridge to accordingly establish a hermetically sealed structure. On the other hand, a disk cartridge guide member, an optical assembly, a disk cartri... | 11/22/2005 |
| 6956796 | High-capacity optical read/write pick-up mechanism and associated methods High-capacity pick-up mechanisms operable for selectively reading data from and/or writing data to one or more surfaces of one or more optical storage media are disclosed. These mechanisms comprise a first pivotable structure, a second pivotable structure, a first r... | 10/18/2005 |
| 6912183 | High-speed optical read/write pick-up mechanisms and associated methods High-speed pick-up mechanisms operable for reading data from and/or writing data to an optical storage medium are disclosed. These mechanisms comprise a pivotable structure, a reflective element, a light source, a light receiving device, and an actuation device. The... | 06/28/2005 |
| 6798729 | Optical head using micro-machined elements An optical head utilizes a micro-machined element in combination with a light source and a lens to write and read data onto a storage disk. The micro-machined element may include a steerable micro-machined mirror or a micro-actuator. A beam of laser light transmitte... | 09/28/2004 |
| 6717893 | Laser thermal management system An optical pickup assembly includes an optical pickup unit (OPU), a thermally conductive plate, and a flex circuit. The flex circuit is mounted atop the plate. The OPU is also mounted atop the plate through a cutout of the flex circuit. Alternatively, the flex circu... | 04/06/2004 |
| 6704256 | Continuous flexible connection for miniature optical head An optical assembly including a service loop extended from a focus section of an actuator arm. A portion of the service loop bends when a tracking section of the actuator arm rotates around a tracking axis while a portion of the flex circuit twists when t... | 03/09/2004 |
| 6687062 | Objective lens-driving apparatus An objective lens driving apparatus is used for accurately positioning an abject to focus a light spot on an optical recording medium. A lens holder holds the objective lens and has a bearing hole through which a shaft extends in a direction parallel to t... | 02/03/2004 |
| 6650604 | Optical head of disk drive An optical head includes (1) a stationary optical unit fixed to a body of the optical disk drive, (2) a rotary arm rotatable along a surface of the optical disk, which carries an object lens which converges the light on the optical disk, and (3) a light-i... | 11/18/2003 |
| 6631227 | Information recording and reproducing apparatus An information recording and reproducing apparatus for at least one of recording and reproducing information on a recording medium utilizing near-field light has a suspension arm and a near-field light head mounted on the suspension arm. The near-field li... | 10/07/2003 |
| 6590853 | Swing arm driving type optical recording/reproducing apparatus A swing arm driving type optical recording/reproducing apparatus includes a base, at least one optical disk rotatably installed on the base, both sides of which are information recording surfaces and a plurality of optical pickups which are equal in numbe... | 07/08/2003 |
| 6507543 | Optical disk apparatus and galvano-mirror used for the same An optical disk apparatus includes a light source, an objective lens, a slider to hold the lens, a suspension to support the slider, a mirror located below the slider, and a seek mechanism to move the mirror and the slider in the tracking direction of an ... | 01/14/2003 |
| 6466525 | Optical disc data storage system An optical data storage system includes an optical disc and an armature adjacent the disc. An optical transducer mounted on the arm provides an optical beam output directed parallel to the plane of the disc. An optical actuator mounted on the arm and posi... | 10/15/2002 |
| 6333910 | Optical system for optical disc drive Disclosed is an optical system for an optical disc drive. The head is provided with a laser source, an objective optical system, and a deflection mirror provided between the laser source and the objective optical system. As the deflection mirror is rotate... | 12/25/2001 |
| 6275454 | Microactuator for track positioning a slider-mounted lens of an optical disc drive A slider assembly for an optical disc drive includes a flyable slider supporting a pad with a pair of piezoelectric beams mounted to the pad to extend in spaced relation over the slider. An objective lens is mounted to the beams as to be cantilevered over... | 08/14/2001 |
| 6240059 | Off-axis optical pickup mechanism for dual-sided optical storage discs An off-axis optical pickup mechanism for dual-sided optical storage discs comprises an optical pickup unit (OPU) connected to an optical pipe. A baffle is provided which surrounds the OPU and a cover is provided which is placed on top of the baffle. To be... | 05/29/2001 |
