| Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826) |
|---|
| 08/22/1990 | EP0383588A1 Head drum for recording and/or reproducing apparatus |
| 08/22/1990 | EP0383526A2 Magneto-optic recording system |
| 08/22/1990 | EP0383454A2 Method and apparatus for preventing parasitic electrical discharges in magnetic disk drives |
| 08/22/1990 | EP0383377A1 Arrangement for reproducing an electric signal |
| 08/22/1990 | EP0383145A1 Apparatus for recording and reproducing signals |
| 08/22/1990 | EP0382959A2 Digital signal recording and playback apparatus |
| 08/22/1990 | CN2060934U Cleaner for head of tape recorders |
| 08/21/1990 | US4951166 Thin-film magnetic head with layer structure and with pole pieces of varying widths |
| 08/21/1990 | US4951165 Magnetic head having improved high density recording and/or reproduction characteristics |
| 08/21/1990 | US4950556 Magneto-optic recording medium |
| 08/21/1990 | US4950555 Magnetic recording medium |
| 08/21/1990 | US4950548 Magnetic recording medium and method of producing same |
| 08/21/1990 | US4950535 Ferromagnetic film layer on one side of substrate, non-magneti c substance in resin binder on other side; lubricant; lower fr iction coefficient |
| 08/16/1990 | EP0382244A2 Magnetic head and process for producing same |
| 08/16/1990 | EP0382195A1 Magnetic head and method of manufacturing the same |
| 08/16/1990 | EP0382192A1 Scanning tunneling microscope memory apparatus |
| 08/16/1990 | EP0382156A2 Magnetic recording medium |
| 08/16/1990 | DE3904530A1 Arrangement and process for magnetic information storage |
| 08/16/1990 | CA2008019A1 Magneto-optic recording system |
| 08/15/1990 | CN2060591U Tape sound and video eraser |
| 08/15/1990 | CN2060590U Magnetic disc type recording medium tuckering apparatus |
| 08/15/1990 | CN2060589U Multifunction pronunciation correction memory storage |
| 08/15/1990 | CA2001392A1 Method and apparatus for preventing parasitic electrical discharges in magnetic disk drives |
| 08/14/1990 | US4949245 Intermediate memory system for connecting microcomputers to a rotating disk memory |
| 08/14/1990 | US4949209 Thin-film magnetic head having special input/output terminal backing connection and method of fabricating the same |
| 08/14/1990 | US4949208 Multihead magnetic head assembly having a single piece faceplate of magnetic ferrite |
| 08/14/1990 | US4949207 Planar structure thin film magnetic head |
| 08/14/1990 | US4949202 Disk track for locating zero track and generating timing for index signal |
| 08/14/1990 | US4949201 Disk drive head position controller with static bias compensation and plural velocity detectors |
| 08/14/1990 | US4949199 Magnetic recording/reproduction apparatus |
| 08/14/1990 | US4949198 Thermomagnetic recording head and mode of embodiment |
| 08/14/1990 | US4949195 Video signal magnetic recording and/or reproducing apparatus with automatic mode discrimination |
| 08/14/1990 | US4949173 Security surveillance system with intermittent magnetic recording/reproducing device |
| 08/14/1990 | US4949039 Magnetic field sensor with ferromagnetic thin layers having magnetically antiparallel polarized components |
| 08/14/1990 | US4948667 Magnetic head |
| 08/14/1990 | US4948626 Method for producing thin-film magnetic recording medium |
| 08/14/1990 | US4948460 Permits track portion to be formed with sufficiently reduced and accurately controlled width |
| 08/14/1990 | US4948422 Method of manufacturing superfine magnetic metal powder |
| 08/14/1990 | US4947542 Bonded by crystallized glass |
| 08/14/1990 | US4947541 Method for producing a thin film head |
| 08/14/1990 | CA1272845A1 Recording disks and process |
| 08/14/1990 | CA1272800A1 Apparatus and method for preventing unauthorized dubbing of a recorded signal |
| 08/14/1990 | CA1272591A1 Magnetic thin film |
| 08/14/1990 | CA1272590A1 Ferromatic powder and method for producing the same |
| 08/10/1990 | CA2009504A1 Magnetic head and process for producing same |
| 08/09/1990 | WO1990009021A1 Read channel detector for use in digital magnetic recording systems |
| 08/09/1990 | WO1990006572A3 Process and device for cleaning magnetic heads |
| 08/09/1990 | DE3908425C1 Magnetic recording carrier |
| 08/08/1990 | EP0381652A2 An improved carbon overcoat for a thin film magnetic recording disc |
| 08/08/1990 | EP0381519A2 Stepper motor torque variance compensation using varied applied voltage |
| 08/08/1990 | EP0381512A2 Bilayer oxide film and process for producing same |
| 08/08/1990 | EP0381314A2 Servo circuit |
| 08/08/1990 | EP0381266A1 Longitudinal magnetic tape recording system, magnetic tape apparatus and magnetic head means. |
| 08/08/1990 | EP0381213A2 Biaxially oriented film of polyethylene-2,6-naphthalate |
| 08/08/1990 | EP0380710A1 Method for increasing the lubricant retention ability for magnetic discs |
| 08/08/1990 | EP0380708A1 Overwrite type magnetooptical recording apparatus |
| 08/08/1990 | EP0380532A1 Preparation of thin layers of iron iii oxide for optical and/or magnetic recording. |
| 08/08/1990 | CN2060249U Magnetic head mounting card motion control device of tape recorder |
| 08/08/1990 | CN1009137B Head loading mechanism for flexible disc drive |
| 08/08/1990 | CN1009136B Magnetic transducer head |
| 08/07/1990 | US4947275 Detachable head-load beam slider arm for disk drive |
| 08/07/1990 | US4947274 Resiliently mounted crash stop and magnetic latch for a voice coil actuator |
| 08/07/1990 | US4947273 Autoloading, interchangeable-media, disk-drive apparatus |
| 08/07/1990 | US4947271 Multi-channel recording apparatus |
| 08/07/1990 | US4947093 Shock resistant winchester disk drive |
| 08/07/1990 | US4946740 Magnetic recording medium |
| 08/07/1990 | US4946729 Radiation curable resin |
| 08/07/1990 | US4946615 Method of preparing kneaded mixture for magnetic coating material |
| 08/07/1990 | US4946534 Process for the preparation of magnetic recording disk |
| 08/07/1990 | US4946374 Magnetic recording medium |
| 08/03/1990 | CA2009154A1 Stepper motor torque variance compensation using varied applied voltage |
| 08/02/1990 | DE4001138A1 Magnetic disk appliance for recording and reproduction - has device for magnetically shielding reading head, and adjustable shield retaining device |
| 08/01/1990 | EP0380283A2 Magnetic disk file with wide servo head |
| 08/01/1990 | EP0380136A2 Soft magnetic thin film, method for preparing same and magnetic head |
| 08/01/1990 | EP0379776A2 Acicular magnetic iron based alloy particles for magnetic recording and method of producing the same |
| 08/01/1990 | EP0243466B1 Apparatus and method for damping head positioners for disk drives |
| 08/01/1990 | EP0128222B1 Rotary head cylinder with fluid bearing |
| 08/01/1990 | CN1009036B Apparatus for positioning plurality of scanning devices |
| 07/31/1990 | US4945528 Method of recording binary information in a magneto-optical storage layer, and arrangement for carrying out the method |
| 07/31/1990 | US4945439 Sync crosstalk cancelling circuit |
| 07/31/1990 | US4945438 Combined magnetic head |
| 07/31/1990 | US4945437 Magnetic head mechanism for reversing head orientation and moving head in tape width direction |
| 07/31/1990 | US4945434 Magnetic recording head employing an I-bar core structure |
| 07/31/1990 | US4945432 Magnetic disk drive with brittle disks |
| 07/31/1990 | US4945427 Magnetic disk recording with variable track width and variable track density |
| 07/31/1990 | US4945049 Method for preparing magnetic powder |
| 07/31/1990 | US4944995 Aluminum rod bonded to plastic substrate |
| 07/31/1990 | US4944831 Process for obtaining a pattern, in ferromagnetic material having differently sloping sides |
| 07/31/1990 | US4944805 Method of heat treatment amorphous soft magnetic film layers to reduce magnetic anisotropy |
| 07/31/1990 | US4944802 High coercivity magnetic inks and method for making same |
| 07/31/1990 | US4944270 Asymmetrical excitation type magnetic device and method of manufacture thereof |
| 07/30/1990 | CA2008650A1 Longitudinal magnetic tape recording system, magnetic tape apparatus for use in the system and magnetic head for use in the magnetic tape apparatus |
| 07/26/1990 | WO1990008380A1 Magnetic recording medium |
| 07/25/1990 | EP0379391A1 Mass velocity controller |
| 07/25/1990 | EP0379324A2 Method and apparatus for reading or writing on tape using a servo positioned multiple channel head |
| 07/25/1990 | EP0379248A2 A method of producing a magnetic head as well as a magnetic head produceable in accordance with the method |
| 07/25/1990 | EP0379183A1 Magnetic recording medium |
| 07/25/1990 | EP0379127A1 Magnetic head and its production method |
| 07/25/1990 | EP0379062A2 Acicular magnetic iron pigments with an adjustable coercive force, and process for their production; Fe metal pigments for magnetic recording with an adjustable coercive force |
| 07/25/1990 | EP0378954A2 Composite polyester films useful as magnetic recording carriers, and magnetic recording materials |