Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 7342869 | Optical-recording medium playback apparatus and optical-recording medium, including flying optical head features An optical-recording-medium playback apparatus includes a first optical member which focuses light emitted from a light-emitting unit on an optical recording medium, a second optical member which focuses light reflected by the optical recording medium, a light-recei... | 03/11/2008 |
| 7301731 | Head assembly having microactuator When wire-bonding process is effected, a head assembly is held between a pair of clamp members. A head slider is urged against a microactuator. The urging force is transmitted to the microactuator through second adhesive layers. Since the second adhesive layers are ... | 11/27/2007 |
| 7086071 | Spring-suspension magnetically stabilized pick-up arm The invention relates to a pick-up arm system for the reproduction or replay of records comprising a pick-up arm chassis and a pick-up arm tube. The torsion element suspension of the pick-up arm is axially stabilized by means of cylindrical permanent magnets which a... | 08/01/2006 |
| 7050267 | Head-gimbal assembly of hard disk drive A head-gimbal assembly of a hard disk drive includes a loadbeam connected to a pivot arm, a slider on which a magnetic head is mounted, an elastic support member having one end coupled to the loadbeam and the other free end portion at which the slider is supported, ... | 05/23/2006 |
| 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 |
| 6901598 | Tilt focus method and mechanism for an optical drive The present invention relates to a method and apparatus for dynamically positioning the objective lens in an optical disk drive to maintain focus despite loss of perpendicularity between the light beam and the information layer of the optical disk. Loss of perpendic... | 05/31/2005 |
| 6826138 | Method for aligning actuator assembly to a base in a miniature optical disk drive Disclosed is a method for aligning a rotating device such as an actuator assembly to a base of, for example, a disk drive. The device is rotatably mounted to the base about the pivot pin. The method may involve adjusting the angular position of the pivot pin relativ... | 11/30/2004 |
| 6625104 | Drive force-transmitting mechanism A drive-force transmitting mechanism includes a drive disk and a driven disk that are rotatable about an axis. The driven disk has two diametrically opposing engagement portions. The drive disk has two levers pivotally mounted thereon, each lever having a... | 09/23/2003 |
| 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 |
| 6549506 | Photo detector mounting in a head gimbal assembly used in an optical data storage device An optical head has a head gimbal assembly on which a light emitting laser is mounted. A tab extends from the assembly and a photo-detector is mounted on the tab. The tab extends from the load beam of the head gimbal assembly. Alternatively, the tab exten... | 04/15/2003 |
| 6404726 | Optical disk drive having a swing arm An optical disk drive has a swing arm that is pivotally supported and upon which is mounted an optical head. The optical head illuminates a small laser beam spot, through an objective lens, onto an optical disk. The swing arm is rotated around a pivotable... | 06/11/2002 |
| 5801531 | Apparatus and method for testing magnetic heads using translational slides and a rotatable arm An apparatus for testing magnetic heads that interact with magnetic disks includes a translational slide and a rotatable arm mounted to one end of the slide. The translational slide moves the rotatable arm in a longitudinal direction parallel to the surfa... | 09/01/1998 |
| 5748605 | Rotary arm-type optical pick-up driving device An optical pick-up driving device includes: a base; a rotary arm installed with respect to the base and operative to rotate around a first guide pin; a rotation driving mechanism, arranged along the rotary arm and said base, for rotating the rotary arm; a... | 05/05/1998 |
| 5671197 | Miniature magnetic disk device and voice coil actuator thereof A miniature magnetic disk device or a miniature optical disk device has a recording disk having a diameter less than or equal to 0.7 inches. The disk device also includes a spindle motor which rotates the recording disk, a read/write head for recording or... | 09/23/1997 |
| 5631786 | Termination pad manipulator for a laminated suspension in a data storage system A multilayered suspension having a slider end and a termination end, the suspension being suitable for use in an information storage system slider-suspension assembly is provided. The suspension comprises a conductive lead structure having at least one co... | 05/20/1997 |
| 5491413 | Positioning device for magnetic head and disk tester with rotating tool support A positioning device for magnetic head and disk tester comprises a base plate (100) which supports a rotary spindle (170), for rotating a magnetic disk (168) with a medium to be tested or to be used for testing, and a rotary platform (150) which may slide... | 02/13/1996 |
| 5475549 | Magnesium-beryllium disk drive armset An actuator armset for a computer disk drive, in accordance with one aspect of the present invention, is comprised of a magnesium alloy containing beryllium. The armset has a bore for rotating about a spindle of the disk drive to position a transducer rad... | 12/12/1995 |
| 5473585 | Compact disk player having single pick-up for selectively reading data from either one of two partially overlapped parallel disks An improved compact disk player device is provided which has compact dimensions and results in reduced cost of manufacturing. The compact disk player device achieves the above described advantages by providing a unique construction whereby multiple compac... | 12/05/1995 |
| 5325349 | Hard disc drive and a servo signal writing apparatus A hard disc drive is comprised of a casing, a head arm located in the casing and movable in unison with a head, and a diffraction grating mounted on the head arm so as to diffract a light introduced into the casing from the outside of the casing, in which... | 06/28/1994 |
| 4995025 | Spherical pivoting actuator for read/record head A low cost, low power, lightweight, low audible noise, high speed actuator for a read and/or record implement or portion thereof attached in a structure with a free end which is movable in multiple directions about essentially a single point of a pivot. I... | 02/19/1991 |
| 4794586 | Rotary access arm for optical disks A rotary access arm, e.g. for an optical disk has crossed voice coil actuators (6a,b) for in-plane and vertical movements, e.g. track and focus control; the actuators are secured to its distal end in close proximity to the focussing optical system (5a,b).... | 12/27/1988 |
| 4761774 | Optical disc drive apparatus An optical disc drive apparatus has a remarkably improved track accessing ability in comparison with conventional like apparatus. On a base are provided an optical system having a light emitting element and a light sensing element, as well as an optical p... | 08/02/1988 |
| 4713707 | Tracking mount for a contactless recording and/or reproducing head A contactless (flying) transducer for scanning a record or recording disc is mounted near the free end of a pivoted arm which is driven in rotation about its pivot by the tangential drive provided by a restrained nut on a threaded motor-driven spindle. A ... | 12/15/1987 |
| 4429379 | Device for controlling tone arm carrying moving coil type pickup Moving coils of a phonograph pickup are made of a substance having magnetoresistance so that the electrical resistance of the coils are detected by means of bridge circuits. The amounts of resistance variation of the coils are used to produce a vertical c... | 01/31/1984 |
| 4408311 | Optical tracking apparatus An optical tracking apparatus for tracing a spiral track on a recording disk includes an optical pickup device having a semiconductor laser and a photoelectric conversion element; an arm device pivotally mounted to an arm shaft with the pickup device bein... | 10/04/1983 |
| 4403316 | Swing-arm device for an optical scanning unit A swing-arm device (5) for an optical disk player comprises a swing arm (16), which near one end (17) carries an optical scanning unit (6) and which is electromagnetically pivoted by means of coils (27, 28) and a permanent magnetic stator (29, 30, 49-52, ... | 09/06/1983 |
| 4135722 | Record-cutting system A cutting transducer is mounted on a radius arm positioned in the same relationship with a turntable as is conventional for the tone arm of a record player. Cross-feed is established by a screw having an axis substantially radial with respect to the axis ... | 01/23/1979 |
| 3988542 | Variable message recorder using a disc without grooves and a single motor to provide both turntable drive and spiral scanning Apparatus in an automatic telephone answering device utilizing a single motor for scanning a tone arm across a grooveless recording disc to selectively play back a message magnetically recorded thereon in a spiral path as well as for rotating the turntabl... | 10/26/1976 |
