Patents
Sitemap › G11 - Information storage › G11B - Information storage based on relative movement between record carrier and transducer › G11B 11 - Recording on, or reproducing from, the same record carrier wherein for these two operations the methods or means are covered by different main groups of groups or by different subgroups of group; Record carriers therefor
Patents for G11B 11 - Recording on, or reproducing from, the same record carrier wherein for these two operations the methods or means are covered by different main groups of groups or by different subgroups of group; Record carriers therefor (14,351)
11/1999
11/24/1999EP0959458A1 Disk device
11/24/1999EP0959457A1 Disk device
11/24/1999EP0959456A1 Disk device
11/24/1999EP0959455A1 Disk device
11/24/1999CN1236142A Optical head and optical information record generator using the same
11/23/1999US5991257 Disk with zones of tracks segmented into data frames, with tracks closer to the disk edge having more frames, and a data recording/reproducing method and apparatus using such disk
11/23/1999US5991252 Method and apparatus for reducing the width of marks written in optical media
11/23/1999US5991243 Data playback device to control a laser illuminating position by comparing phase of a laser drive signal and a laser tracking error detection signal
11/23/1999US5991242 Magnetic head drive device, and magneto-optical recording apparatus using the same
11/23/1999US5989705 Magneto-optical recording medium
11/23/1999US5989671 Optical recording medium and manufacturing method thereof
11/18/1999WO1999059147A1 Near field optical head and reproduction method
11/18/1999WO1999059144A1 Multi-dimensionally oriented magnetic field information storage system
11/17/1999CN1235342A Recording apparatus and method, and reproducing apparatus and method
11/17/1999CN1235340A CD device and computer equipped therewith
11/16/1999US5987004 Optical disk with reinforcing plate
11/16/1999US5987002 Magneto-optical recording medium and method and apparatus for reproducing data therefrom
11/16/1999US5986995 High NA catadioptric focusing device having flat diffractive surfaces
11/16/1999US5986987 PRML readout system for optical disk
11/16/1999US5986977 Method for reading magnetic super resolution type magneto-optical recording medium
11/16/1999US5986976 Magnetooptical recording head for a recording apparatus including a laminated core having a plurality of magnetic thin films sandwiching insulating films therebetween
11/16/1999US5986850 Positive pressure optical slider having wide center rail
11/16/1999US5986848 Electronic apparatus and removable cartridge having integrated rotating head drum I/O terminal to be electrically connected to said electronic apparatus
11/16/1999US5985436 Magneto-optical recording medium, magneto-optical recording method, and magneto-optical recording apparatus
11/16/1999US5985105 Sputtering protective overcoat on magnetic layer by: positioning disk so its major surfaces are parallel to x-y plane; impinging particles along z-axis perpendicular to x-y plane, rotating disk around y-axis, spinning in x-y plane
11/11/1999WO1999057718A1 Coil for magnetic head, magnetic head, and magneto-optical recorder
11/11/1999WO1999057717A1 Coil for magnetic head, magnetic head, and magneto-optical recorder
11/10/1999EP0955635A1 Recording apparatus and method, and reproducing apparatus and method
11/10/1999EP0954859A1 Catadioptric optical system, optical pickup and optical disk drive employing the same, and optical disk
11/10/1999CN1234581A Method and apparatus of producing information storage device
11/09/1999US5983387 Information recording method, reproducing method, and reproducing apparatus
11/09/1999US5983057 Color imaging system with selectively openable optical shutter
11/09/1999US5982738 Optical recording medium having at least wobbled synchronous information shared between tracks
11/09/1999US5982731 Optical pickup and opto-magnetic signal reproducing apparatus
11/09/1999US5982718 Verifying data by controlling the gain of an amplifying means according to a window width comparator
11/09/1999US5982716 Magneto-optic recording system employing near field optics
11/09/1999US5982715 Magneto-optical recording medium having a signal reproducing region of the reproducing layer larger than the record bit in the recording layer
11/09/1999US5982714 Laser beam adjusting for magnetic field modulation overwrite magneto-optical recording device
11/09/1999US5982713 Magneto-optical recording medium
11/09/1999US5981936 Photo detector circuit having a current mirror circuit
11/09/1999US5981123 Electrostatic information recording medium and electrostatic information recording and reproducing method
11/09/1999US5981093 Two layered; each layer include atleast a metal of rare earth and atleast one transition metal and both contain fluorine in variable concentration
11/09/1999US5981042 Comprising semiconductor layer and ferroelectric layer for recording an image signal, a sound signal or the like or for use as a data memory for computers
11/09/1999US5981039 For magnetic latent images with high resolution and high magnetic attracting force to magnetic toner
11/09/1999US5981016 Magneto-optical medium and reproducing device for the same
11/09/1999US5980985 An apparatus comprising a turntable having an aligned center aperture for receiving the disc-shaped recording medium to deposit the resin coatings with a uniform thickness
11/09/1999CA2048868C Magnetic recording medium and information recording-reproduction method using the same
11/09/1999CA2048499C Magneto-optical recording device
11/09/1999CA2046178C Magneto-optical disk with lubricant film
11/04/1999WO1999056277A1 An optical recording head having a solid immersion lens
11/03/1999CN1233824A Method and device for regenerating CD recording
11/02/1999US5978350 Optical disc and optical disc driving device
11/02/1999US5978344 Method of manufacturing integrated optical pick-up
11/02/1999US5978335 Integrated calibration apparatus for a multi-mode information storage system
11/02/1999US5978332 Optical recording medium, tilt detector, optical disk drive, tilt detecting method, and tilt correcting method
11/02/1999US5978327 Optical recording medium for land-and-groove recording system
11/02/1999US5978320 Recording/reproducing apparatus for use with a photomagnetic recording medium
11/02/1999US5978319 Thin electro-magnetic coil assembly for attachment to a slider
11/02/1999US5978188 Multitrack tape device using a movable magnetic head with a planar surface and including a tape supporting device
11/02/1999US5976688 Magneto-optical recording medium and method of manufacturing the same
11/02/1999US5976667 Magneto-optical recording medium utilizing magnetostatic coupling, and method of recording information on the medium
11/02/1999US5976641 Intermetallic target
10/1999
10/28/1999WO1999054874A1 Optical pickup device and optical disk recording and/or reproducing device
10/28/1999WO1999054771A1 System and method for efficient coupling between optical elements
10/27/1999EP0952574A1 Optical disk recording/reproducing method and apparatus
10/26/1999US5974581 Information recording method, reproducing method, and reproducing apparatus
10/26/1999US5974022 Dividing marks in optical media to decrease adjacent track crosstalk
10/26/1999US5974021 Determination of optimal recording power in optical disk recording and retrieving device
10/26/1999US5974019 Optical system for two-dimensional positioning of light beams
10/26/1999US5974018 Apparatus for and method of recording information on recording media
10/26/1999US5974013 Disc reproducing apparatus and head position calculating method
10/26/1999US5974011 Light beam condensing apparatus and method of driving optical recording medium by applying the apparatus
10/26/1999US5974007 Apparatus for moving a carriage assembly from an initial position to a target position
10/26/1999US5972461 Rewritable optical data storage disk having enhanced flatness
10/26/1999US5972460 Information recording medium
10/21/1999WO1999053494A1 Storage disk comprising depressions and/or raised features
10/21/1999WO1999053489A1 Information reproducing device and method
10/21/1999WO1999053484A1 Information recording method, information reproducing method, recording medium used by the method, information recording device, and information reproducing device
10/21/1999WO1999053482A1 Laser assisted track width definition and radial control with magnetic recording
10/20/1999EP0951015A2 An optical or magneto-optic head and method of making the same
10/20/1999EP0950209A1 Device for deflecting light beams
10/20/1999CN1232569A Optical disc, optical disc device and method recording optical disc
10/20/1999CN1232261A Information recording method, reproducing method, and reproducing apparatus
10/19/1999US5970045 Optical disc and disc cartridge
10/19/1999US5970038 Reduction of mesa fly height modulation due to media asperities in magneto-optic drives
10/19/1999US5970027 Magneto-optical recording medium and writing and readout method therefor
10/19/1999US5970026 Temperature invariant, magneto-optic modulator coil driving circuit
10/19/1999US5968678 Magneto-optical recording medium and manufacturing method thereof
10/19/1999US5968626 Transmissive optical and magneto-optical data storage media and method of making the same
10/19/1999CA2073919C Multiple probe electrode arrangement for scanning tunnelling microscope recording and reading
10/19/1999CA2039737C Optical recording medium and information recording apparatus
10/19/1999CA2039700C Apparatus for reproducing recorded data and selectively either of read-only or recorded synchronization information from a magneto-optical recording medium
10/14/1999WO1999052106A1 New air bearing surface design for constant fly height profile
10/14/1999WO1999052103A1 Adaptive recording method and apparatus for high-density optical recording apparatus
10/14/1999WO1999052099A1 Apparatus for recording data in parallel tracks
10/14/1999WO1999039342A8 Magneto-optic recording medium and signal reproducing method
10/12/1999US5966368 Data recording disk
10/12/1999US5966363 Optical and magneto-optic data storage systems utilizing transmissive media
10/12/1999US5966360 Cleaning disc cartridge
10/12/1999US5966356 Optimum slice level signal reading apparatus for optical disk
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