Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
03/1999
03/23/1999US5887115 Method and apparatus for implementing a video tape recorder for recording digital video signals having either a fixed or variable data transmission rate
03/23/1999US5887112 Combination apparatus comprising a video-recorder section and a television-receiver section
03/23/1999US5886959 Thin-film electro-magnetic coil design for use in a flying magneto-optical head
03/23/1999US5886958 Information recording apparatus and method for modulated magneto-optical recording medium
03/23/1999US5886858 Magnetic disk apparatus with flexible printed circuit board connected to carriage assembly
03/23/1999US5886857 Head suspension with alignment measurement pattern
03/23/1999US5886856 Magnetic head slider assembly for magnetic disk recording/reproducing apparatus
03/23/1999US5886846 Method for applying optimal seeking technique to disk file with excessive repeatable runout
03/23/1999US5886844 Magnetic disk apparatus and read waveform equalizing method using stored tap coefficients for a transversal filter
03/23/1999US5886843 Recording and playback apparatus using a helical-scan-type rotary head
03/23/1999US5886842 Control loops for low power, high speed PRML sampling data detection channel
03/23/1999US5886787 Displacement sensor and method for producing target feature thereof
03/23/1999US5886568 Open-loop MR biasing circuit with high power supply and common mode rejection
03/23/1999US5885724 Magnetic recording medium
03/23/1999US5885131 Interactive device for lapping transducers
03/23/1999CA2143353C Magnetic recording binder containing aminoalkylphosphonate salt
03/18/1999WO1999013461A1 Read/write recording device and head positioning mechanism therefor
03/18/1999WO1999013460A1 High performance standard configuration disc drive having smaller-than-standard discs
03/18/1999WO1999013459A1 Reader for a low-flying magnetoresistive sensor
03/18/1999WO1999013458A1 Magnetic recorder and recording method, magnetic reproducer and reproducing method, and magnetic recorder/reproducer and recording/reproducing method
03/18/1999WO1999013457A2 Reader for a low-flying magnetoresistive sensor
03/18/1999WO1998049810A3 Data storage and/or retrieval methods and apparatuses and components thereof
03/18/1999DE19842047A1 Floppy-disc with servo patterns
03/18/1999DE19817588A1 Glass substrate cleaning method
03/17/1999EP0902445A1 Magnetic thin film and magnetic head using the same
03/17/1999EP0902427A2 Disc apparatus head slider support suspension
03/17/1999EP0902424A1 Information recording method and apparatus with suppressed mark edge jitters
03/17/1999EP0902422A2 Servo track writing on a disk
03/17/1999EP0901679A1 Process for producing a pole-trimmed writer in a magnetoresistive read/write head and a data transducer made thereby
03/17/1999EP0858654A4 Tool for processing magnetic read/write heads and associated method
03/17/1999CN1211037A Drive circuits for magnetic recording device
03/17/1999CN1211028A Magnetic head
03/17/1999CN1211027A Suspension supporting head slider head slider supporting device using suspension and disc apparatus using head slider supporting apparatus
03/16/1999US5883770 Partial width mass produced linear tape recording head
03/16/1999US5883769 Aluminum head drum with a protective layer which smoothly and continuously varies in hardness for use in a videocassette recorder
03/16/1999US5883767 Direct access storage device with magneto-resistive transducing head apparatus and a common read return signal line
03/16/1999US5883766 Magnetic head with groove positioned to identify head orientation
03/16/1999US5883765 Vertical magnetic head having first and second magnetic materials in specific shapes
03/16/1999US5883764 Magnetoresistive sensor having multi-layered refractory metal conductor leads
03/16/1999US5883763 Read/write head having a GMR sensor biased by permanent magnets located between the GMR and the pole shields
03/16/1999US5883762 Electroplating apparatus and process for reducing oxidation of oxidizable plating anions and cations
03/16/1999US5883760 Magnetic structure and magnetic head using the same
03/16/1999US5883759 Flex circuit head interconnect for improved electrical performance and ease of assembly
03/16/1999US5883758 Lead structure with stainless steel base for attachment to a suspension
03/16/1999US5883751 Magnetic tape recording and reproducing apparatus preventing axial vibration of rotary head cylinder
03/16/1999US5883750 Method and system for the magnetic recording of information elements and information medium by providing current correction for cross-talk magnetic flux
03/16/1999US5883749 Technique for initializing hard disk drive
03/16/1999US5882795 Non-magnetic coated particles having a defined parameter α of not less than 0.5
03/16/1999US5882122 Rolling bearing and spindle apparatus
03/16/1999CA2152689C Magnetic disc apparatus employing constant-density recording and driver access method
03/16/1999CA2090543C Compact, high-speed, rotary actuator and transducer assembly with reduced moment of inertia and mass-balanced structural overlap with drive motor, and organizing method for the same
03/11/1999WO1999012167A1 Filter calibration and head instability detection method and apparatus
03/11/1999WO1999012163A1 Disk-like recording medium, disc drive, and reproducing method for disk-like recording medium
03/11/1999WO1999011418A1 Laser texturing recording medium with a random signal driven modulator
03/11/1999DE19806598A1 Magnetic inductive head, with magnetoresistive element, for magnetic tape or disc
03/10/1999EP0901119A2 Optical drive system having servomotor operated relative to maximum quad sum signal
03/10/1999EP0901092A2 Card reader
03/10/1999EP0900434A1 Suspension with integrated conductor having controlled capacitance
03/10/1999EP0799474B1 Recording head for recording track-centering servo signals on a multi-track recording medium
03/10/1999CN2310364Y Magnetic material card speech sound device
03/10/1999CN1210329A Method for suppersonic cleaning magnetic head
03/09/1999US5881204 Magnetic video and audio recording and/or reproducing apparatus and recording medium
03/09/1999US5881071 Digital write-and-read method and signal processing apparatus
03/09/1999US5881038 Method and apparatus for preventing illegal copy or illegal installation of information of optical recording medium
03/09/1999US5880953 Control system and information recording and reproducing apparatus
03/09/1999US5880915 Crack resistant magnetic write head
03/09/1999US5880914 Recording and/or reading device with magnetic heads and method for the manufacture thereof
03/09/1999US5880913 Antiparallel pinned spin valve sensor with read signal symmetry
03/09/1999US5880912 Magnetic head with biased GMR element and sense current compensation
03/09/1999US5880911 Magnetoresistive effect element
03/09/1999US5880910 Magneto-resistive reading head with two slanted longitudinal bias films and two slanted leads
03/09/1999US5880909 Audio/control head connecting device of tape recorder
03/09/1999US5880908 Gimbal assembly for a magnetic head slider and a suspension for supporting and fixing the magnetic head slider
03/09/1999US5880904 Disk drive having a thickness equal to an IC memory card
03/09/1999US5880902 Method and apparatus for adaptively calibrating disk drive performance based on real time performance monitoring
03/09/1999US5880901 Method and apparatus for positioning a magnetoresistive head
03/09/1999US5880900 Error recovery method and disk drive apparatus to superimpose a vibration signal with one-half frequency onto a driving signal to a magnetoresistive head
03/09/1999US5880899 Removal of raised irregularities on a data storage disk with controlled abrasion by a magnetoresistive head
03/09/1999US5880898 Data reproduction method and circuit for removing a glitch error in a digital magnetic recording/reproduction apparatus
03/09/1999US5880897 Apparatus in use of a film having information recording section
03/09/1999US5880626 Active damping for a disk drive write circuit
03/09/1999US5880456 Circuit provides a normalized position signal for lateral photoeffect position sensor
03/09/1999US5880226 High density digital recording, durability; binder resin includes aminoquinone structure
03/09/1999US5879798 Ferromagnetic metal and carbides positioned around metal crystal grains
03/09/1999US5879783 Seed layer deposited on substrate and oxidized to produce controlled surface microroughness on seed layer; roughness affects grain size of the underlayer to improve microstructure of magnetic alloy
03/09/1999US5879773 Recordable optical disks with dielectric interlayer
03/09/1999US5879578 Etched/lubricated swage balls for use in DASD suspension-arm attachment
03/09/1999US5879569 Magnetic disk and method of and apparatus for manufacturing magnetic disk
03/09/1999US5878481 Pole trimming method for fabricating a magnetic transducer structure
03/09/1999US5878458 Electronic card lock cleaner
03/09/1999CA2102145C Substrate for magnetic disk
03/09/1999CA2096553C Recording medium capable of suppressing resonance from recording and reproducing devices
03/09/1999CA2081504C Gimbaled micro-head/flexure/conductor assembly and system
03/04/1999WO1999010990A1 Method and apparatus for determining bit error rate in a sampled data system
03/04/1999WO1999010893A2 Object reconstruction on object oriented data storage device
03/04/1999WO1999010880A1 Inertial latch for shock resistant actuator
03/04/1999WO1999010569A1 Combination electrolytic polishing and polishing and texturing machine and the combination electrolytic polishing and polishing and texturing tape used in the said machine
03/04/1999WO1998041832A3 Disk drive head position encoder
03/03/1999EP0899798A2 Magneto-impedance element, and magnetic head, thin film magnetic head, azimuth sensor and autocanceler using the same
03/03/1999EP0899738A2 Information recording and reproducing method and apparatus