Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
11/1991
11/28/1991WO1991018481A1 Video recorder with improved colour rendering
11/28/1991WO1991018424A1 Magnetoresistance effect element
11/28/1991WO1991018390A1 Thin line micro hard disk architecture
11/28/1991WO1991018389A1 Bi-directional read while write magnetic head assembly having a wear avoidance contour
11/28/1991WO1991018387A1 Magnetic recording medium and method of manufacturing the same
11/28/1991WO1991018060A1 Organic surface treatment
11/28/1991WO1991015012A3 Shorted dual element magnetoresistive reproduce head exhibiting high density signal amplification
11/28/1991DE4116588A1 Test circuit for automatic track following - has interlock circuit responding to test signal generator output in digital audio tape system
11/28/1991DE4016397A1 Videorecorder mit verbesserter farbaufzeichnung VCR with improved color recording
11/27/1991EP0458583A2 Video signal recording apparatus
11/27/1991EP0458558A2 A data recording cartridge and a flexible magnetic recording medium and a method of manufacturing the same
11/27/1991EP0458528A1 Data storage device with vapour pressure control system
11/27/1991EP0458445A2 Negative pressure air bearing slider
11/27/1991EP0458444A2 Air bearing disk head slider
11/27/1991EP0256110A4 Apparatus and method for increasing storage capacity of recording media
11/26/1991US5068760 Thin film magnetic head for a bidirectionally moveable recording medium
11/26/1991US5068759 Thin film magnetic head of small size capable of certainly and stably connecting lead wires
11/26/1991US5068757 Servo tracking for helical scan recorder
11/26/1991US5068755 Sector pulse generator for hard disk drive assembly
11/26/1991US5068754 Method and apparatus for measuring bit shift
11/26/1991US5068753 Data reproducing circuit for memory system having an equalizer generating two different equalizing signals used for data reproduction
11/26/1991US5068158 Magnetic recording medium and process for preparing the same
11/26/1991US5068152 Magnetic recording medium
11/26/1991US5068147 Soft magnetic thin film comprising alternate layers of iron carbide with either iron, iron nitride or iron carbon-nitride
11/26/1991US5068145 Magnetic recording medium in which the magnetic layer contains a vinyl compound having an inner salt of an alkyl amino alkyl group
11/26/1991US5068144 Perpendicular magnetic recording medium and method for producing the same
11/26/1991US5068050 High stable magnetic thin film and cores
11/26/1991US5068022 Process for sputtering multilayers for magneto-optical recording
11/26/1991US5067230 Method for the manufacture of planar magnetic heads by making cavities in a non-magnetic wafer
11/26/1991CA1292565C Data recorder and method
11/21/1991EP0457395A1 Thin-film magnetic head
11/21/1991EP0457394A1 Thin film magnetic head
11/21/1991EP0457373A2 An information signal delay system
11/21/1991EP0457372A2 Magnetic transducer having a common core for erasing and recording
11/21/1991EP0457366A2 Glasslike carbon composite material
11/21/1991EP0457299A1 Acicular metal iron fine particles, process for preparing same, magnetic coating composition and magnetic recording medium containing same
11/21/1991EP0457278A2 Magnetoresistance effect type thin film magnetic head
11/21/1991EP0457029A2 Coating apparatus
11/21/1991EP0108060B1 Sector servo seek control
11/19/1991US5067131 Apparatus and method for recording and/or reproducing a digital signal
11/19/1991US5067039 High track density magnetic media with pitted optical servo tracks and method for stamping the tracks on the media
11/19/1991US5067038 Rotary magnetic head device having two different kinds of heads
11/19/1991US5067037 Slider with boss
11/19/1991US5067035 Error prevention in a recording and reproducing device with at least one rotating head
11/19/1991US5067032 Head driver
11/19/1991US5066552 Low noise thin film metal alloy magnetic recording disk
11/19/1991US5066539 Magnetic recording medium wherein the magnetic layer contains components having specified polar groups, particle diameters and surface areas or which are in specific relative ratios
11/19/1991US5066534 Magnetic recording medium
11/19/1991US5066347 Tape transport apparatus and method of introducing tape thereto
11/19/1991US5065548 Surface treating tape cartridge and surface treating machine
11/19/1991US5065547 Surface processing machine for hard disks and the like
11/19/1991US5065500 Method of manufacturing a magnetic head assembly including a magnetic recording medium slide surface having grooves formed thereon
11/19/1991US5065483 Method of lapping magnetic recording heads
11/19/1991CA1292312C Multiple card recording system
11/19/1991CA1292309C Magnetic recording apparatus
11/19/1991CA1292284C Data acquisition and recording system
11/16/1991CA2042650A1 Acicular metal iron fine particles, process for preparing same, magnetic coating composition and magnetic recording medium containing same
11/14/1991WO1991017628A1 Video recorder with improved sound recording
11/14/1991DE4014832A1 Videorecorder mit verbesserter tonaufzeichnung VCR with improved sound track
11/14/1991DE4012823A1 Verfahren zur herstellung eines duennfilm-magnetbandkopfes Process for the preparation of a magnetic tape head duennfilm
11/13/1991EP0456405A2 Digital signal recording apparatus
11/13/1991EP0456371A2 Method of controlling seek movements by a magnetic head in a hard disk drive
11/13/1991EP0456348A2 Method and apparatus for controlling head position in disk storage apparatus
11/13/1991EP0456316A2 Compatible magnetic head assembly
11/13/1991EP0456299A1 Arrangement and method for obtaining prerecorded digital music cassettes
11/13/1991EP0456227A2 Magnetic recording medium
11/13/1991EP0455749A1 Read channel detector for use in digital magnetic recording systems.
11/13/1991CN2088733U Simple karaoke device for recorder
11/13/1991CN1056179A Method of and arrangement for obtaining prerecorded digital music cassettes tape
11/12/1991US5065390 Optical playback head
11/12/1991US5065387 Method and apparatus for generating tracking error signals by means of an optical servo system
11/12/1991US5065382 Disc memory apparatus
11/12/1991US5065378 System for reproducing a signal recorded in a magnetic recording medium by using a magnetostatic wave
11/12/1991US5065271 Thin film magnetic head apparatus and method of manufacturing the same
11/12/1991US5065270 Thin film magnetic recording head with a low resistance coil formed by two processes
11/12/1991US5065268 Load beam having an additional bend in a head-gimbal assembly
11/12/1991US5065267 Multi-track magnetic head having different height head chips
11/12/1991US5065260 Method for recording/reproducing expanded digital signals in conventional format
11/12/1991US5065259 Magnetic recording and/or reproducing apparatus
11/12/1991US5065258 Transmitting information from producer to end users through slant-track tape-to-tape copying at higher-than-standard signal transmission
11/12/1991US5065094 Two terminal magnetoresistive sensor having DC blocking capacitor
11/12/1991US5064730 Vinyl Chloride Interpolymer
11/12/1991US5064721 Magnetic recording media
11/12/1991US5064720 Magnetic recording medium containing a polyurethane binder resin having a betaine group in the form of an intermolecular salt
11/12/1991US5064687 Method for making magnetic recording media
11/12/1991US5064549 Preparation of stabilized chromium dioxide with sodium tetracarbonylferrate
11/12/1991US5063712 Micro-burnishing flex head structure
11/12/1991US5063653 Method of producing a core for a magnetic head
11/06/1991EP0455472A1 Low noise amplifier with short circuit protection for signals from magnetoresistive element
11/06/1991EP0455438A2 Magnetic recording system
11/06/1991EP0455359A2 Thin film magnetic head and method of manufacture thereof
11/06/1991EP0455293A1 Method of and arrangement for obtaining prerecorded digital music cassettes
11/06/1991EP0455158A2 Recording and reproducing apparatus for using magneto-optical disc
11/06/1991EP0455113A2 Fe based soft magnetic alloy, magnetic material containing same, and magnetic apparatus using the magnetic materials
11/05/1991US5063469 Composite magnetic head assembly having reduced cross feed between waiting and reading heads
11/05/1991US5063468 Compatible magnetic head assembly
11/05/1991US5063467 Magnetic head with saturable gap and matrix device comprising a multiplicity of such heads
11/05/1991US5063466 Rotary head type magnetic recording and reproducing apparatus
11/05/1991US5063465 Head supporting mechanism of a recording/reproducing apparatus
11/05/1991US5063464 Low profile suspension