JPS6348637A - 光磁気記録媒体及び光磁気記録方法 - Google Patents

光磁気記録媒体及び光磁気記録方法

Info

Publication number
JPS6348637A
JPS6348637A JP61191202A JP19120286A JPS6348637A JP S6348637 A JPS6348637 A JP S6348637A JP 61191202 A JP61191202 A JP 61191202A JP 19120286 A JP19120286 A JP 19120286A JP S6348637 A JPS6348637 A JP S6348637A
Authority
JP
Japan
Prior art keywords
magnetic layer
magnetic
magnetization
recording
layer
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
JP61191202A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0542062B2 (enExample
Inventor
Yoichi Osato
陽一 大里
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
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
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP61191202A priority Critical patent/JPS6348637A/ja
Priority to CA 541367 priority patent/CA1340058C/en
Priority to AU75306/87A priority patent/AU593364C/en
Priority to DE19873752351 priority patent/DE3752351T2/de
Priority to KR1019870007322A priority patent/KR960003420B1/ko
Priority to AT98200007T priority patent/ATE216528T1/de
Priority to DE19873752348 priority patent/DE3752348T2/de
Priority to EP87306038A priority patent/EP0258978B1/en
Priority to DE3752222T priority patent/DE3752222T2/de
Priority to EP98200006A priority patent/EP0838814B1/en
Priority to AT87306038T priority patent/ATE172047T1/de
Priority to EP98200007A priority patent/EP0838815B1/en
Publication of JPS6348637A publication Critical patent/JPS6348637A/ja
Priority to US07/475,941 priority patent/US5132945A/en
Publication of JPH0542062B2 publication Critical patent/JPH0542062B2/ja
Priority to US08/296,163 priority patent/US5525378A/en
Priority to US08/312,930 priority patent/US5481410A/en
Priority to US08/613,431 priority patent/US5783300A/en
Priority to US09/080,215 priority patent/US6028824A/en
Granted legal-status Critical Current

Links

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)
JP61191202A 1986-06-18 1986-08-16 光磁気記録媒体及び光磁気記録方法 Granted JPS6348637A (ja)

Priority Applications (17)

Application Number Priority Date Filing Date Title
JP61191202A JPS6348637A (ja) 1986-08-16 1986-08-16 光磁気記録媒体及び光磁気記録方法
CA 541367 CA1340058C (en) 1986-07-08 1987-07-06 Magnetooptical recording medium allowing overwriting with tow or more magnetic layers and recording method utilizing the same
AU75306/87A AU593364C (en) 1986-07-08 1987-07-07 Magnetooptical recording medium allowing overwriting with two or more magnetic layers and recording method utilizing the same
DE3752222T DE3752222T2 (de) 1986-07-08 1987-07-08 Magnetoptisches Aufzeichnungsmedium mit der Möglichkeit des Überschreibens mit zwei oder mehr Magnetschichten und dieses Medium verwendende Aufzeichnungsmethode
EP98200007A EP0838815B1 (en) 1986-07-08 1987-07-08 Apparatus and system for recording on a magnetooptical recording medium
KR1019870007322A KR960003420B1 (ko) 1986-07-08 1987-07-08 2층이상의 자성막을 가지고 중복기록이 가능한 광자기 기록매체 및 그의 매체를 사용한 기록방법
AT98200007T ATE216528T1 (de) 1986-07-08 1987-07-08 Gerät und system zur aufzeichnung auf einem magnetooptischen aufzeichnungsmedium
DE19873752348 DE3752348T2 (de) 1986-07-08 1987-07-08 Magnetooptisches Aufzeichnungsmedium mit der Möglichkeit des Überschreibens mit zwei oder mehr Magnetschichten und dieses Medium verwendende Aufzeichnungsmethode
EP87306038A EP0258978B1 (en) 1986-07-08 1987-07-08 Magnetooptical recording medium allowing overwriting with two or more magnetic layers and recording method utilizing the same
DE19873752351 DE3752351T2 (de) 1986-07-08 1987-07-08 Gerät und System zur Aufzeichnung auf einem magnetooptischen Aufzeichnungsmedium
EP98200006A EP0838814B1 (en) 1986-07-08 1987-07-08 Magnetooptical recording medium allowing overwriting with two or more magnetic layers and recording method utilizing the same
AT87306038T ATE172047T1 (de) 1986-07-08 1987-07-08 Magnetoptisches aufzeichnungsmedium mit der möglichkeit des überschreibens mit zwei oder mehr magnetschichten und dieses medium verwendende aufzeichnungsmethode
US07/475,941 US5132945A (en) 1986-07-08 1990-01-30 Magnetooptical recording medium allowing overwriting with two or more magnetic layers and recording method utilizing the same
US08/296,163 US5525378A (en) 1986-07-08 1994-08-26 Method for producing a magnetooptical recording medium
US08/312,930 US5481410A (en) 1986-07-08 1994-09-30 Magnetooptical recording medium allowing overwriting with two or more magnetic layers and recording method utilizing the same
US08/613,431 US5783300A (en) 1986-06-18 1996-02-29 Magnetooptical recording medium allowing overwriting with two or more magnetic layers and recording method utilizing the same
US09/080,215 US6028824A (en) 1986-07-08 1998-05-18 Magnetooptical recording medium allowing overwriting with two or more magnetic layers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61191202A JPS6348637A (ja) 1986-08-16 1986-08-16 光磁気記録媒体及び光磁気記録方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP1924193A Division JPH06101152B2 (ja) 1993-01-12 1993-01-12 光磁気記録媒体の製造方法

Publications (2)

Publication Number Publication Date
JPS6348637A true JPS6348637A (ja) 1988-03-01
JPH0542062B2 JPH0542062B2 (enExample) 1993-06-25

Family

ID=16270605

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61191202A Granted JPS6348637A (ja) 1986-06-18 1986-08-16 光磁気記録媒体及び光磁気記録方法

Country Status (1)

Country Link
JP (1) JPS6348637A (enExample)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6364651A (ja) * 1986-09-04 1988-03-23 Nikon Corp 転写層を有するオーバーライト可能な光磁気記録媒体
JPH01149246A (ja) * 1987-12-04 1989-06-12 Sony Corp 光磁気記録媒体
JPH02177148A (ja) * 1988-12-28 1990-07-10 Canon Inc 情報記録方法
JPH02187947A (ja) * 1989-01-13 1990-07-24 Sony Corp 光磁気記録方法
US5142513A (en) * 1989-04-20 1992-08-25 Victor Company Of Japan, Ltd. Magneto-optical storage medium and magneto-optical overwrite system with magnetic characteristic change by variation of thermal condition for recording information
US5774430A (en) * 1996-04-01 1998-06-30 Canon Kabushiki Kaisha Optical modulation overwritable magnetooptical recording medium
WO2003088226A1 (en) * 2002-03-29 2003-10-23 Sony Corporation Recording medium, recording medium reproduction method, recording medium reproduction device, unique identification information recording method, and recording medium recording device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62175948A (ja) * 1985-06-11 1987-08-01 Nippon Kogaku Kk <Nikon> オーバーライト可能な光磁気記録方法、それに使用される光磁気記録装置及び光磁気記録媒体、並びに変調方法、変調装置及び光磁気記録媒体

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62175948A (ja) * 1985-06-11 1987-08-01 Nippon Kogaku Kk <Nikon> オーバーライト可能な光磁気記録方法、それに使用される光磁気記録装置及び光磁気記録媒体、並びに変調方法、変調装置及び光磁気記録媒体

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6364651A (ja) * 1986-09-04 1988-03-23 Nikon Corp 転写層を有するオーバーライト可能な光磁気記録媒体
JPH01149246A (ja) * 1987-12-04 1989-06-12 Sony Corp 光磁気記録媒体
JPH02177148A (ja) * 1988-12-28 1990-07-10 Canon Inc 情報記録方法
JPH02187947A (ja) * 1989-01-13 1990-07-24 Sony Corp 光磁気記録方法
US5142513A (en) * 1989-04-20 1992-08-25 Victor Company Of Japan, Ltd. Magneto-optical storage medium and magneto-optical overwrite system with magnetic characteristic change by variation of thermal condition for recording information
US5774430A (en) * 1996-04-01 1998-06-30 Canon Kabushiki Kaisha Optical modulation overwritable magnetooptical recording medium
WO2003088226A1 (en) * 2002-03-29 2003-10-23 Sony Corporation Recording medium, recording medium reproduction method, recording medium reproduction device, unique identification information recording method, and recording medium recording device

Also Published As

Publication number Publication date
JPH0542062B2 (enExample) 1993-06-25

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Legal Events

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