Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
04/1985
04/24/1985EP0138457A2 Reproduced signal switching circuit for reproducing apparatus having rotary heads for special reproduction
04/24/1985EP0138202A2 Tracking system for rotary magnetic recording medium
04/24/1985EP0138036A2 Magnetic recording medium
04/24/1985EP0137949A2 Magnetic recording medium
04/24/1985EP0137926A1 Magnetic recording medium
04/24/1985EP0137922A1 Magnetic head assembly
04/24/1985EP0137855A1 Data transfer system using digital disc
04/23/1985US4513337 Magnetic head for perpendicular magnetization recording
04/23/1985US4513336 Cassette tape recorder
04/23/1985US4513334 For a helical-scan tape reproducing device
04/23/1985US4513333 Diagnostic recording
04/23/1985US4513332 Disk drive having fine and coarse control of the read/write head
04/23/1985US4513331 Method and apparatus for disk drive alignment
04/23/1985US4513328 Method of recording video signals within a predetermined bit/unit time recording rate
04/23/1985US4513054 Magnetic recording medium
04/23/1985US4512906 From chlorides, nitrates or hydroxides of strontium, barium or lead
04/23/1985US4512862 Method of making a thin film insulator
04/23/1985CA1186003A1 Production of magnetic recording cards
04/17/1985EP0137719A2 A video signal reproducing apparatus
04/17/1985EP0137676A1 Magnetic transducer heads utilizing magnetoresistance effect
04/17/1985EP0137346A2 Rotary head type digital information signal recording and reproducing apparatus and tracking control method therein
04/17/1985EP0137308A1 Magnetic-recording supports
04/17/1985EP0137307A1 Magnetic-recording supports
04/17/1985EP0137267A1 Thin film magnetic transducer head
04/17/1985EP0137232A1 Magnet pigments mainly consisting of iron, stable against processing, process for their production and their use
04/17/1985EP0137190A2 Method of patterning thin film
04/17/1985EP0137134A1 A magnetic head having a non-magnetic substrate
04/17/1985EP0137051A1 Method of manufacturing a magnetic head flying body
04/17/1985EP0137049A1 Perpendicular magnetic recording head
04/16/1985US4511942 Automatic throat height control for film heads
04/16/1985US4511941 Cassette tape apparatus with adjustable head positioning characteristics
04/16/1985US4511938 Magnetizable recording disk and disk file employing servo sector head positioning
04/16/1985US4511935 Tape recorder
04/16/1985US4511934 Video tape recorder
04/16/1985US4511933 Method and apparatus for recording a digital information signal
04/16/1985US4511635 Magnetic recording medium
04/16/1985US4511629 Radiadion curable unsaturated compounds
04/16/1985US4511617 Magnetic recording medium
04/16/1985US4511594 System of manufacturing magnetic recording media
04/16/1985US4511484 Process for preparing magnetic coating composition
04/16/1985US4511194 Magazine and disc holders for supporting discs in the magazine
04/10/1985EP0136808A2 Method for recording and/or reproducing video and audio signals on a magnetic tape and a rotary cylinder arrangement therefor
04/10/1985EP0136785A1 Position control apparatus for controlling positions of rotary heads with respect to a recording medium
04/10/1985EP0136723A2 Recording carrier comprising an amorphous magnetooptic recording medium layer consisting of rare earth-transition armorphous metal formed on a plastic substrate
04/10/1985EP0136631A2 A process for forming a magnetic record member and a magnetic record member
04/10/1985EP0136599A2 Barium ferrite magnetic powder and recording medium employing the same
04/10/1985EP0136590A1 Magnetic recording medium
04/10/1985EP0136533A1 Magnetic recording medium
04/10/1985EP0136445A1 Transportsystem
04/09/1985US4510543 Magnetic head system for tape player
04/09/1985US4510541 Magnetic disk storage unit with reciprocating magnetic head for cleaning the magnetic disc
04/09/1985US4510538 Magnetic recording apparatus
04/09/1985US4510537 Magnetic head moving velocity detector
04/09/1985US4510530 Signal reproducing circuit for a video tape recorder
04/09/1985US4510203 Magnetic recording medium
04/09/1985US4509251 Apparatus and method for orienting a magnetic gap in a slider head in a carriage
04/09/1985CA1185367A1 Magnetic head and method of producing same
04/09/1985CA1185331A1 Wave-shaping circuit for digital signal
04/09/1985CA1185307A1 Combined linear motor and side mounted outboard carriage
04/03/1985EP0136157A2 Magnetic head for perpendicular magnetic recording
04/03/1985EP0136102A2 Perfluoropolyether compositions which are soluble in non-fluorinated solvents
04/03/1985EP0136038A1 Method and apparatus for producing electroplated magnetic memory disk, and the like
04/03/1985EP0135982A1 Easily slippable aromatic polyester film and process for production thereof
04/03/1985EP0135915A1 Ceramic substrate for a thin layer magnetic head
04/03/1985EP0135886A1 Magnetic recording apparatus
04/03/1985EP0135774A2 Magnetic recording medium and magnetic particles therefor
04/03/1985EP0135739A1 Combined write and read magnetic head for a vertically magneticable recording medium
04/03/1985EP0135738A1 Read write magnetic head for vertically magnetizable recording medium
04/02/1985US4509155 Circuit arrangement for a disk player for reproducing information prerecorded in the form of pits
04/02/1985US4509084 Rotary magnetic head
04/02/1985US4509083 Head tracking control for video tape recorder
04/02/1985US4508782 Base film for magnetic recording tape with F-5 values of 9-15 Kg/mm2
04/02/1985US4508752 Method for manufacturing a magnetic recording medium
04/02/1985CA1185011A1 Information signal reproducing apparatus
04/02/1985CA1185008A1 Magnetic transducer
03/1985
03/28/1985WO1985001379A1 Disk accessing circuitry
03/28/1985WO1985001378A1 Microfloppy disc drive head cleaner
03/28/1985WO1985001247A1 Process for producing biaxially oriented polyester film
03/27/1985EP0135451A1 Composite polyester films
03/27/1985EP0135118A2 Method of producing fine particles
03/27/1985EP0135096A1 Magnetic head for a recording medium to be perpendicularly magnetized
03/27/1985EP0135020A1 Magnetic recording disks
03/27/1985EP0134994A1 Method of making magnetic recording media with a back layer
03/27/1985EP0134993A1 Method of making magnetic recording media
03/27/1985EP0134812A1 Magnetic transducer positioning apparatus
03/26/1985US4507696 Drum-shaped scanning device
03/26/1985US4507693 Control apparatus for rotation type storage device
03/26/1985US4507688 Information recording apparatus
03/26/1985US4507686 Television signal recording and reproducing apparatus
03/26/1985US4507457 Production of magnetic recording media
03/26/1985US4507364 Cobalt-chromium alloy
03/26/1985US4507179 Process of producing aluminum substrate for magnetic recording media
03/20/1985EP0134675A1 Perpendicular magnetization type magnetic head
03/20/1985EP0134421A2 Bonding method for producing very thin bond lines
03/20/1985EP0134412A1 Lubricated magnetic record disk and a process for making it
03/19/1985US4506309 Tape drive calibration meter
03/19/1985US4506308 Managanese-zinc ferrite read/write head nickel-zinc ferrite erase head bonded by glass
03/19/1985US4506307 Magnetic head slider and actuator assembly
03/19/1985US4506000 Double layer of magnetic particles reduces biuas noise
03/19/1985US4505990 Improving antistatic properties of magnetic tapes, salt of perfluoroalkyl sulfonate or acid