JPS63276731A - Method for writing to magneto-optical recording medium - Google Patents

Method for writing to magneto-optical recording medium

Info

Publication number
JPS63276731A
JPS63276731A JP11086487A JP11086487A JPS63276731A JP S63276731 A JPS63276731 A JP S63276731A JP 11086487 A JP11086487 A JP 11086487A JP 11086487 A JP11086487 A JP 11086487A JP S63276731 A JPS63276731 A JP S63276731A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
medium
1st
recording
thin
magnetic field
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.)
Granted
Application number
JP11086487A
Other versions
JPH0814900B2 (en )
Inventor
Iwao Hatakeyama
Tetsuo Iijima
Osamu Ishii
Kotaro Nonaka
Original Assignee
Nippon Telegr & Teleph Corp <Ntt>
Priority date (The priority date 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 date listed.)
Filing date
Publication date

Links

Abstract

PURPOSE: To enable execution of over-writing at a high speed by recording information onto a thin perpendicularly magnetized film with a head for magnetic recording, then heating the film by a light beam and transferring the magnetized information to the thin perpendicularly magnetized film having a large anisotropic magnetic field.
CONSTITUTION: A magneto-optical disk medium 10 constituted by forming a 1st medium 13 which is a thin CoCr alloy film having a high Curie temp. and the 2nd medium 12 which is a thin rare earth-transition metal alloy having the anisotropic magnetic field larger than the anisotropic magnetic field of the 1st medium and the Curie temp. lower than the Curie temp. of the 1st medium on a substrate 11 is subjected to recording of the information in the form of the arrays of magnetic inversions on the 1st medium 13 by the recording head 14. The medium 12 is then made nonmagnetic by heating with the light beam 15. Then, the magnetizations of the 2nd medium 12 are unified in the direction of the magnetic field generated from the 1st medium 13 in the process when the temp. of the region irradiated with the light beam falls. The magnetized information recorded on the 1st medium 13 is thus transferred onto the 2nd medium 12 and the recording information is continuously written on the 1st medium 13.
COPYRIGHT: (C)1988,JPO&Japio
JP11086487A 1987-05-08 1987-05-08 Method of writing to the magneto-optical recording medium Expired - Fee Related JPH0814900B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11086487A JPH0814900B2 (en) 1987-05-08 1987-05-08 Method of writing to the magneto-optical recording medium

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP11086487A JPH0814900B2 (en) 1987-05-08 1987-05-08 Method of writing to the magneto-optical recording medium
US07188876 US5051970A (en) 1987-05-08 1988-05-02 Magneto-optic recording system with overwrite capability
DE19883876133 DE3876133T2 (en) 1987-05-08 1988-05-06 Device and record carrier for magneto-optic recording.
DE19883876133 DE3876133D1 (en) 1987-05-08 1988-05-06 Device and record carrier for magneto-optic recording.
EP19880304128 EP0291248B1 (en) 1987-05-08 1988-05-06 A magneto-optic medium and system
KR880005262A KR910003935B1 (en) 1987-05-08 1988-05-06 Magneto-opticla recording system

Publications (2)

Publication Number Publication Date
JPS63276731A true true JPS63276731A (en) 1988-11-15
JPH0814900B2 JPH0814900B2 (en) 1996-02-14

Family

ID=14546614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11086487A Expired - Fee Related JPH0814900B2 (en) 1987-05-08 1987-05-08 Method of writing to the magneto-optical recording medium

Country Status (1)

Country Link
JP (1) JPH0814900B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6435745A (en) * 1987-07-23 1989-02-06 Kerdix Inc Recording structure composed of magneto-optical recording layer and magnetic recording layer and apparatus and method for recording and reading data
JPH02177148A (en) * 1988-12-28 1990-07-10 Canon Inc Information recording method and information recording and reproducing method
JPH02189751A (en) * 1989-01-19 1990-07-25 Canon Inc Magneto-optical recorder
US5233578A (en) * 1988-12-28 1993-08-03 Canon Kabushiki Kaisha Method of recording information on a recording medium having at least two magnetic layers
EP0478786B1 (en) * 1990-03-24 1996-09-18 Seiko Epson Corporation Magnetooptic recording medium, and method of magnetooptic recording and reproduction
JP2002512725A (en) * 1998-04-09 2002-04-23 シーゲイト テクノロジー エルエルシー Limited and radial control of the track width by the laser-assisted in magnetic recording
US7274626B2 (en) 2004-01-23 2007-09-25 Hitachi, Ltd. Magneto-optical recording using a heating element

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5850639A (en) * 1981-09-18 1983-03-25 Ricoh Co Ltd Vertically magnetized recording medium
JPS5857645A (en) * 1981-10-01 1983-04-05 Akai Electric Co Ltd Disk medium for vertical magnetic recording

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5850639A (en) * 1981-09-18 1983-03-25 Ricoh Co Ltd Vertically magnetized recording medium
JPS5857645A (en) * 1981-10-01 1983-04-05 Akai Electric Co Ltd Disk medium for vertical magnetic recording

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6435745A (en) * 1987-07-23 1989-02-06 Kerdix Inc Recording structure composed of magneto-optical recording layer and magnetic recording layer and apparatus and method for recording and reading data
JPH02177148A (en) * 1988-12-28 1990-07-10 Canon Inc Information recording method and information recording and reproducing method
US5233578A (en) * 1988-12-28 1993-08-03 Canon Kabushiki Kaisha Method of recording information on a recording medium having at least two magnetic layers
JPH02189751A (en) * 1989-01-19 1990-07-25 Canon Inc Magneto-optical recorder
EP0478786B1 (en) * 1990-03-24 1996-09-18 Seiko Epson Corporation Magnetooptic recording medium, and method of magnetooptic recording and reproduction
JP2002512725A (en) * 1998-04-09 2002-04-23 シーゲイト テクノロジー エルエルシー Limited and radial control of the track width by the laser-assisted in magnetic recording
US7274626B2 (en) 2004-01-23 2007-09-25 Hitachi, Ltd. Magneto-optical recording using a heating element

Also Published As

Publication number Publication date Type
JPH0814900B2 (en) 1996-02-14 grant

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees