DE68920817D1 - Gerät und Verfahren für magnetische Quasikontakt-Aufzeichnung. - Google Patents
Gerät und Verfahren für magnetische Quasikontakt-Aufzeichnung.Info
- Publication number
- DE68920817D1 DE68920817D1 DE68920817T DE68920817T DE68920817D1 DE 68920817 D1 DE68920817 D1 DE 68920817D1 DE 68920817 T DE68920817 T DE 68920817T DE 68920817 T DE68920817 T DE 68920817T DE 68920817 D1 DE68920817 D1 DE 68920817D1
- Authority
- DE
- Germany
- Prior art keywords
- contact recording
- magnetic quasi
- quasi
- magnetic
- recording
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/60—Fluid-dynamic spacing of heads from record-carriers
- G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/60—Guiding record carrier
- G11B15/62—Maintaining desired spacing between record carrier and head
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/50—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges
- G11B23/505—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges of disk carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
- G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
- G11B33/148—Reducing friction, adhesion, drag
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00012—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using an auxiliary transmission line
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
- G11B33/1406—Reducing the influence of the temperature
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US26460488A | 1988-10-31 | 1988-10-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68920817D1 true DE68920817D1 (de) | 1995-03-09 |
DE68920817T2 DE68920817T2 (de) | 1995-08-10 |
Family
ID=23006810
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68929034T Expired - Fee Related DE68929034T2 (de) | 1988-10-31 | 1989-10-27 | Magnetisches Datenspeichergerät mit Wandlerbaugruppe für magnetische Quasikontaktaufzeichnung |
DE68920817T Expired - Fee Related DE68920817T2 (de) | 1988-10-31 | 1989-10-27 | Gerät und Verfahren für magnetische Quasikontakt-Aufzeichnung. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68929034T Expired - Fee Related DE68929034T2 (de) | 1988-10-31 | 1989-10-27 | Magnetisches Datenspeichergerät mit Wandlerbaugruppe für magnetische Quasikontaktaufzeichnung |
Country Status (4)
Country | Link |
---|---|
US (3) | US5742449A (de) |
EP (2) | EP0367510B1 (de) |
JP (3) | JP2796852B2 (de) |
DE (2) | DE68929034T2 (de) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6493191B1 (en) | 1989-11-27 | 2002-12-10 | Censtor Corporation | Planar magnetic ring head for contact recording with a rigid disk |
US6600631B1 (en) * | 1989-11-27 | 2003-07-29 | Censtor Corp. | Transducer/flexure/conductor structure for electromagnetic read/write system |
US5526204A (en) * | 1989-12-20 | 1996-06-11 | Conner Peripherals, Inc. | Low drag liquid bearing recording head |
US5200867A (en) * | 1991-07-02 | 1993-04-06 | International Business Machines Corporation | Transducer carrier for disk file with liquid film head-disk interface |
US5202803A (en) * | 1991-07-02 | 1993-04-13 | International Business Machines Corporation | Disk file with liquid film head-disk interface |
US5374463A (en) * | 1991-10-22 | 1994-12-20 | International Business Machines Corporation | Magnetic recording disk having a contiguous fullerene film and a protective overcoat |
US5267104A (en) * | 1992-04-30 | 1993-11-30 | International Business Machines Corporation | Liquid-bearing data recording disk file with transducer carrier having rear ski pad at the head-disk interface |
CA2089793A1 (en) * | 1992-05-18 | 1993-11-19 | Thomas Allen Gregory | Spacer ring reservoir for magnetic recording disk lubricant |
WO1994011879A1 (en) * | 1992-11-13 | 1994-05-26 | Conner Peripherals, Inc. | Lubricated disk drive |
WO1994011878A1 (en) * | 1992-11-13 | 1994-05-26 | Conner Peripherals, Inc. | Liquid recirculation in an information storage device |
TW226464B (de) * | 1992-12-29 | 1994-07-11 | Ibm | |
US5396383A (en) * | 1992-12-29 | 1995-03-07 | International Business Machines | Integral lubricating fluid delivery system for a flying head in a magnetic disk storage system |
US5309301A (en) * | 1992-12-30 | 1994-05-03 | International Business Machines Corporation | Servo controlled lubricant thickness for near contact magnetic recording |
US5455730A (en) * | 1993-02-18 | 1995-10-03 | International Business Machines Corporation | Contact magnetic recording disk file with a magnetoresistive read sensor |
JPH06274859A (ja) * | 1993-03-18 | 1994-09-30 | Hitachi Ltd | 磁気記録媒体および磁気記録再生装置 |
US5418667A (en) * | 1993-08-03 | 1995-05-23 | International Business Machines Corporation | Slider with transverse ridge sections supporting air-bearing pads and disk drive incorporating the slider |
WO1995024033A1 (en) * | 1994-03-02 | 1995-09-08 | Conner Peripherals, Inc. | Oxidation-stabilized hydrocarbon liquid bearings for lubricated disk drives |
US5623383A (en) * | 1994-06-30 | 1997-04-22 | International Business Machines | Magnetic slider design for precision wear-in |
JP2867911B2 (ja) * | 1994-08-16 | 1999-03-10 | 日本電気株式会社 | 磁気ディスク装置 |
US5841608A (en) * | 1994-08-30 | 1998-11-24 | Fujitsu Limited | Head slider with projections arranged on rails thereof |
US6118635A (en) * | 1994-10-20 | 2000-09-12 | Hitachi, Ltd. | Magnetic storage apparatus having a head with sliding pads |
US6804085B1 (en) | 1995-03-21 | 2004-10-12 | Seagate Technology, Llc | Hard drive system interface between a disk surface and a transducer contacting the surface during communication |
JP3438006B2 (ja) * | 1995-05-29 | 2003-08-18 | ミネベア株式会社 | 浮動型磁気ヘッドとその製法 |
US5661618A (en) * | 1995-12-11 | 1997-08-26 | International Business Machines Corporation | Magnetic recording device having a improved slider |
US6198607B1 (en) * | 1995-12-22 | 2001-03-06 | Censtor Corporation | Contact planar magnetoresistive head |
JP2800749B2 (ja) * | 1995-12-28 | 1998-09-21 | 日本電気株式会社 | 磁気ディスク装置 |
US6104687A (en) * | 1996-08-26 | 2000-08-15 | Digital Papyrus Corporation | Method and apparatus for coupling an optical lens to a disk through a coupling medium having a relatively high index of refraction |
US6031685A (en) * | 1997-07-11 | 2000-02-29 | Seagate Technology, Inc. | Information storage systems comprising a liquid bearing maintained by adsorption isotherm |
US6160683A (en) * | 1997-08-15 | 2000-12-12 | Seagate Technology Llc | Slider for disc storage system |
NL1010020C2 (nl) * | 1997-09-08 | 1999-06-23 | Ntn Toyo Bearing Co Ltd | Spilmotor en inrichting voor het ondersteunen van de roterende as van een spilmotor. |
US6381090B1 (en) | 1998-05-21 | 2002-04-30 | Komag, Incorporated | Hard disk drive head-media system having reduced stiction and low fly height |
US6683754B2 (en) | 1998-05-21 | 2004-01-27 | Komag, Inc. | Hard disk drive head-media system having reduced stiction and low fly height |
AU6419899A (en) * | 1998-10-09 | 2000-05-01 | Regents Of The University Of Michigan, The | Hydrogels and water soluble polymeric carriers for drug delivery |
US6459547B1 (en) | 1998-12-09 | 2002-10-01 | Seagate Technology Llc | Slider with pads and textured landing zone for disc storage system |
US6304418B1 (en) | 1999-02-11 | 2001-10-16 | Seagate Technology Llc | Enhanced durability ultra-low-flying-height sliders |
US6538849B1 (en) | 1999-02-11 | 2003-03-25 | Seagate Technology Llc | Diamond-pattern directed tipping slip magnetic head |
US6665147B2 (en) | 2000-07-05 | 2003-12-16 | Hitachi, Ltd. | Magnetic disk drive with supply of perfluoropolyether as lubricant |
WO2002033698A1 (en) | 2000-10-13 | 2002-04-25 | Seagate Technology Llc | Disc drive slider having textured pads |
US6678113B2 (en) * | 2001-03-19 | 2004-01-13 | Hitachi Global Storage Technologies Netherlands B.V. | Device and method for monitoring lubricant within a disk drive |
US6826009B1 (en) * | 2002-08-30 | 2004-11-30 | General Electric Capital Corporation | Disk drive including a filter element disposed along a disk surface for filtering disk rotation induced airflow |
US6914739B2 (en) * | 2002-11-14 | 2005-07-05 | Hitachi Global Storage Technologies Netherlands B.V. | Closed loop lubrication system for moving magnetic media |
US7362533B2 (en) * | 2004-07-30 | 2008-04-22 | Hitachi Global Storage Technologies Netherlands B.V. | Disk drive with slider burnishing-on-demand |
US20060262451A1 (en) * | 2005-05-18 | 2006-11-23 | Samsung Electronics Co., Ltd. | Hard-disk drive design for contact recording applications |
JP5097146B2 (ja) * | 2009-02-09 | 2012-12-12 | 株式会社日立製作所 | 磁気ディスク装置 |
Family Cites Families (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2969435A (en) * | 1955-02-07 | 1961-01-24 | Ibm | Oil film spacer for magnetic recording device |
US3060431A (en) * | 1956-02-08 | 1962-10-23 | Lab For Electronics Inc | Magnetic data storage techniques |
US3005675A (en) * | 1956-02-08 | 1961-10-24 | Lab For Electronics Inc | Fluid bearing control for a magnetic head |
US3349384A (en) * | 1964-02-27 | 1967-10-24 | Data Disc Inc | Air bearing magnetic transducer assembly |
US3579212A (en) * | 1968-03-05 | 1971-05-18 | Honeywell Inc | A reproducing head in a liquid medium |
US3516081A (en) * | 1969-07-31 | 1970-06-02 | North American Rockwell | Fluid bearing pads for supporting transducers |
GB1300297A (en) * | 1970-10-01 | 1972-12-20 | Int Computers Ltd | Improvements in or relating to magnetic transducing head assemblies |
DE2143711A1 (de) * | 1971-09-01 | 1973-03-08 | Licentia Gmbh | Wiedergabeeinrichtung zur wiedergabe von auf einem aufzeichnungstraeger aufgezeichneten signalen |
DE2301440A1 (de) * | 1972-01-13 | 1973-07-19 | Honeywell Ltd | Magnetplattenspeicher |
US3990106A (en) * | 1975-05-30 | 1976-11-02 | Nippon Hoso Kyokai | Dynamic negative pressure type floating head system |
US4188434A (en) * | 1978-05-15 | 1980-02-12 | Storage Technology Corporation | Lubricant for a magnetic member |
JPS56145560A (en) * | 1980-03-12 | 1981-11-12 | Hitachi Ltd | Magnetic disc device |
DE3117931C2 (de) * | 1980-05-06 | 1985-07-25 | Nippon Electric Co., Ltd., Tokio/Tokyo | Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung |
JPS56169223A (en) * | 1980-05-28 | 1981-12-25 | Sony Corp | Magnetic recording medium |
US4404247A (en) * | 1982-07-02 | 1983-09-13 | Minnesota Mining And Manufacturing Company | Protective covering for magnetic recording medium |
DE3333930C2 (de) * | 1982-09-21 | 1985-08-14 | Victor Company Of Japan, Ltd., Yokohama, Kanagawa | Magnetaufzeichnungsmaterial |
JPS5994234A (ja) * | 1982-11-19 | 1984-05-30 | Sony Corp | 磁気記録媒体 |
US4522885A (en) * | 1983-02-12 | 1985-06-11 | Hitachi Maxell, Ltd. | Magnetic recording medium |
US4626941A (en) * | 1983-05-26 | 1986-12-02 | Fujitsu Limited | Method and apparatus for suppressing the evaporation of lubricant film coated on magnetic disks of a disk storage |
JPS59221873A (ja) * | 1983-05-30 | 1984-12-13 | Fujitsu Ltd | 磁気デイスク表面の潤滑膜安定化法 |
JPS59218669A (ja) * | 1983-05-26 | 1984-12-08 | Fujitsu Ltd | 磁気デイスク装置 |
JPS59218668A (ja) * | 1983-05-26 | 1984-12-08 | Fujitsu Ltd | 磁気デイスク装置 |
US4542071A (en) * | 1983-07-14 | 1985-09-17 | International Business Machines Corporation | Lubricated magnetic recording disk |
WO1985000918A1 (en) * | 1983-08-02 | 1985-02-28 | Harris Graphics Corporation | Method and apparatus for hydrodynamic magnetic recording |
US4633351A (en) * | 1983-08-02 | 1986-12-30 | Harris Graphics Corporation | Method and apparatus for hydrodynamic magnetic recording |
US4529659A (en) * | 1983-11-05 | 1985-07-16 | Nippon Telegraph & Telephone Public Corporation | Magnetic recording member and process for manufacturing the same |
JPS60119629A (ja) * | 1983-11-30 | 1985-06-27 | Sony Corp | 磁気記録媒体 |
JPH065598B2 (ja) * | 1984-02-29 | 1994-01-19 | 富士通株式会社 | 磁気デイスク装置 |
JPS6148182A (ja) * | 1984-08-10 | 1986-03-08 | Fujitsu Ltd | 浮動形磁気ヘツド |
CA1246215A (en) * | 1985-04-02 | 1988-12-06 | Celia E. Yeack-Scranton | Air bearing slider design |
JPS6212982A (ja) * | 1985-07-10 | 1987-01-21 | Hitachi Ltd | 磁気デイスク装置 |
DE3679494D1 (de) * | 1985-07-19 | 1991-07-04 | Toshiba Kawasaki Kk | Gleitstueckzusammenbau fuer magnetische koepfe. |
US4644641A (en) * | 1985-12-30 | 1987-02-24 | Memorex Corporation | Fabrication of "Delta" magnetic head-sliders |
US4700248A (en) * | 1986-03-17 | 1987-10-13 | Polaroid Corporation | Magnetic head assembly with angled slots |
JPS62168188U (de) * | 1986-04-14 | 1987-10-24 | ||
JP2533091B2 (ja) * | 1986-07-31 | 1996-09-11 | 株式会社東芝 | 磁気デイスク装置 |
US4757402A (en) * | 1986-10-03 | 1988-07-12 | Censtor Corp. | Slider assembly for supporting a magnetic head |
JPS63259879A (ja) * | 1987-04-16 | 1988-10-26 | Mitsubishi Electric Corp | 浮動形磁気ヘツド |
US4789913A (en) * | 1987-08-03 | 1988-12-06 | International Business Machines Corporation | Method and apparatus for lubricating a magnetic disk continuously in a recording file |
US5097368A (en) * | 1988-10-17 | 1992-03-17 | Conner Peripherals, Inc. | Information recording apparatus with a non-Newtonian liquid bearing |
US5193046A (en) * | 1988-10-17 | 1993-03-09 | Conner Peripherals, Nc. | Information recording apparatus with a liquid bearing |
ATE121860T1 (de) * | 1989-02-24 | 1995-05-15 | Conner Peripherals Inc | Nasses festplatten-laufwerk mit einem konischen spindellager. |
US5200867A (en) * | 1991-07-02 | 1993-04-06 | International Business Machines Corporation | Transducer carrier for disk file with liquid film head-disk interface |
-
1989
- 1989-09-19 JP JP1240894A patent/JP2796852B2/ja not_active Expired - Fee Related
- 1989-10-27 DE DE68929034T patent/DE68929034T2/de not_active Expired - Fee Related
- 1989-10-27 DE DE68920817T patent/DE68920817T2/de not_active Expired - Fee Related
- 1989-10-27 EP EP89311118A patent/EP0367510B1/de not_active Expired - Lifetime
- 1989-10-27 EP EP94200838A patent/EP0606963B1/de not_active Expired - Lifetime
-
1991
- 1991-04-23 US US07/689,671 patent/US5742449A/en not_active Expired - Lifetime
-
1992
- 1992-10-20 US US07/963,785 patent/US5278711A/en not_active Expired - Lifetime
-
1993
- 1993-03-16 US US08/032,511 patent/US5850317A/en not_active Expired - Fee Related
-
1995
- 1995-04-28 JP JP7105051A patent/JPH0845239A/ja active Pending
-
1998
- 1998-04-17 JP JP10742898A patent/JP3155504B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE68929034T2 (de) | 2000-02-24 |
EP0606963B1 (de) | 1999-07-21 |
EP0606963A2 (de) | 1994-07-20 |
EP0367510B1 (de) | 1995-01-25 |
DE68920817T2 (de) | 1995-08-10 |
DE68929034D1 (de) | 1999-08-26 |
JPH02130789A (ja) | 1990-05-18 |
JP2796852B2 (ja) | 1998-09-10 |
US5742449A (en) | 1998-04-21 |
EP0367510A2 (de) | 1990-05-09 |
US5278711A (en) | 1994-01-11 |
EP0606963A3 (de) | 1997-04-23 |
EP0367510A3 (de) | 1991-03-13 |
JPH0845239A (ja) | 1996-02-16 |
JP3155504B2 (ja) | 2001-04-09 |
JPH10312660A (ja) | 1998-11-24 |
US5850317A (en) | 1998-12-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE68920817D1 (de) | Gerät und Verfahren für magnetische Quasikontakt-Aufzeichnung. | |
DE69027726T2 (de) | Verfahren und Einrichtung zur Datenaufzeichnung und -Wiedergabe | |
DE3852281T2 (de) | Verfahren und Gerät zur Datenaufnahme/Wiedergabe. | |
DE69524135D1 (de) | Aufzeichnungsverfahren und Vorrichtung für Aufzeichnungsmedium | |
DE3382202D1 (de) | Verfahren und anordnung zur magnetischen aufzeichnung und wiedergabe. | |
DE69127210T2 (de) | Informationsaufnahmeverfahren und -gerät | |
DE68923721T2 (de) | Informationsaufzeichnungsgerät und Informationsaufzeichnungs-und-wiedergabeverfahren. | |
DE69030865D1 (de) | Aufzeichnungsmedium und Verfahren zur Wiedergabe dafür | |
DE69126343D1 (de) | Verfahren/Gerät zur Informationsaufzeichnung und Informationswiedergabe | |
DE3879933D1 (de) | Geraet und verfahren zum lesen magnetischer zeichen. | |
DE69034121D1 (de) | Aufzeichnungsvorrichtung und -verfahren | |
DE3871422D1 (de) | Geraet und verfahren zur informationsaufzeichnung. | |
DE3888915T2 (de) | Verfahren und Einrichtung zur Informationsaufzeichnung und -wiedergabe. | |
KR900012217A (ko) | 기록재생장치 및 재생방법 | |
DE69123496D1 (de) | Verfahren zur datenaufzeichnung und wiedergabe | |
DE68907082D1 (de) | Verfahren und system zum zusammenbau von magnetplatten-kassetten. | |
DE3774790D1 (de) | Verfahren und geraet zum aufzeichnen. | |
DE69023589T2 (de) | Informationsaufzeichnungsmethode und Medium dafür. | |
DE3888154D1 (de) | Verfahren und Gerät zur Aufzeichnung und Wiedergabe von Informationen. | |
DE68919753D1 (de) | Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung. | |
DE68910646T2 (de) | Verfahren zum Trocknen für Aufnahme-/Wiedergabegerät. | |
DE69320025T2 (de) | Verfahren und gerät zur informationsaufzeichnung | |
DE3783779T2 (de) | Verfahren und vorrichtung zur magnetischen aufzeichnung und wiedergabe. | |
DE3852460D1 (de) | Magnetisches Aufzeichnungs- und Wiedergabegerät und Aufzeichnungsverfahren. | |
KR900012218A (ko) | 정보기록과 재생방법 및 그의 장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B. Owner name: IBM UNITED KINGDOM LTD., PORTSMOUTH, HAMPSHIRE, GB |
|
8339 | Ceased/non-payment of the annual fee |