CA1340058C - Milieu d'enrigistrement magneto-optique permettant d'ecraser a l'aide dedeux ou plusieurs couches magnetiques; methode d'enrigistrement utilisant ce milieu - Google Patents

Milieu d'enrigistrement magneto-optique permettant d'ecraser a l'aide dedeux ou plusieurs couches magnetiques; methode d'enrigistrement utilisant ce milieu

Info

Publication number: CA1340058C
Authority: CA; Canada
Prior art keywords: magnetic layer; magnetic; layer; magnetization; recording
Prior art date: 1986-07-08
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

Application number

CA 541367

Other languages

English (en)

Inventor

Eiichi Fujii

Nobuhiro Kasama

Hisaaki Kawade

Yoichi Osato

Tadashi Kobayashi

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.)

1986-07-08

Filing date

1987-07-06

Publication date

1998-09-29

1986-07-08 Priority claimed from JP15878686A external-priority patent/JPS6316439A/ja

1986-08-16 Priority claimed from JP61191202A external-priority patent/JPS6348637A/ja

1986-11-05 Priority claimed from JP61262034A external-priority patent/JPS63117354A/ja

1986-11-25 Priority claimed from JP27856786A external-priority patent/JPH087885B2/ja

1986-11-25 Priority claimed from JP27856686A external-priority patent/JPH087884B2/ja

1987-02-02 Priority claimed from JP62020384A external-priority patent/JPS63153752A/ja

1987-02-03 Priority claimed from JP62021675A external-priority patent/JPS63191337A/ja

1987-02-04 Priority claimed from JP62023993A external-priority patent/JPS63191338A/ja

1987-02-06 Priority claimed from JP62024706A external-priority patent/JPS63193351A/ja

1987-02-06 Priority claimed from JP62024707A external-priority patent/JPS63193352A/ja

1987-02-10 Priority claimed from JP62027083A external-priority patent/JPS63195845A/ja

1987-02-10 Priority claimed from JP62027082A external-priority patent/JPS63195844A/ja

1987-02-23 Priority claimed from JP62037736A external-priority patent/JPS63205835A/ja

1987-03-10 Priority claimed from JP62052897A external-priority patent/JPS63220440A/ja

1987-03-26 Priority claimed from JP62072559A external-priority patent/JPS63239638A/ja

1987-03-26 Priority claimed from JP62070279A external-priority patent/JPS63237238A/ja

1987-03-26 Priority claimed from JP62070278A external-priority patent/JPS63237242A/ja

1987-03-26 Priority claimed from JP62070274A external-priority patent/JPS63237237A/ja

1987-03-26 Priority claimed from JP62070273A external-priority patent/JPS63237236A/ja

1987-07-06 Application filed by Canon Inc filed Critical Canon Inc

1998-09-29 Application granted granted Critical

1998-09-29 Publication of CA1340058C publication Critical patent/CA1340058C/fr

2015-09-29 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

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CA 541367 1986-07-08 1987-07-06 Milieu d'enrigistrement magneto-optique permettant d'ecraser a l'aide dedeux ou plusieurs couches magnetiques; methode d'enrigistrement utilisant ce milieu Expired - Fee Related CA1340058C (fr)

Applications Claiming Priority (38)

Application Number	Priority Date	Filing Date	Title
JP15878686A JPS6316439A (ja)	1986-07-08	1986-07-08	光学的磁気記録媒体の製造法
JP1587/1986		1986-07-08
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
JP191202/1986		1986-08-16
JP61262034A JPS63117354A (ja)	1986-11-05	1986-11-05	光磁気記録媒体
JP262034/7986		1986-11-05
JP278567/1986		1986-11-25
JP278566/1986		1986-11-25
JP27856786A JPH087885B2 (ja)	1986-11-25	1986-11-25	光磁気記録方法
JP27856686A JPH087884B2 (ja)	1986-11-25	1986-11-25	光磁気記録方法
JP20384/1987		1987-02-02
JP62020384A JPS63153752A (ja)	1986-07-08	1987-02-02	光磁気記録媒体及びその記録方法
JP21675/1987		1987-02-03
JP62021675A JPS63191337A (ja)	1987-02-03	1987-02-03	光磁気記録媒体及び記録方式
JP62023993A JPS63191338A (ja)	1987-02-04	1987-02-04	光磁気記録媒体及び記録方式
JP23993/1987		1987-02-04
JP24706/1987		1987-02-06
JP62024707A JPS63193352A (ja)	1987-02-06	1987-02-06	光磁気記録媒体の製造方法
JP62024706A JPS63193351A (ja)	1987-02-06	1987-02-06	光磁気記録媒体及び記録方式
JP24707/1987		1987-02-06
JP62027082A JPS63195844A (ja)	1987-02-10	1987-02-10	光磁気記録媒体及び記録方法
JP27083/1987		1987-02-10
JP27082/1987		1987-02-10
JP62027083A JPS63195845A (ja)	1987-02-10	1987-02-10	光磁気記録媒体及び光磁気記録方法
JP37736/1987		1987-02-23
JP62037736A JPS63205835A (ja)	1987-02-23	1987-02-23	光磁気記録媒体及び光磁気記録方法
JP52897/1987		1987-03-10
JP62052897A JPS63220440A (ja)	1987-03-10	1987-03-10	光磁気記録方法
JP62070279A JPS63237238A (ja)	1987-03-26	1987-03-26	光磁気記録媒体および光磁気記録方法
JP62072559A JPS63239638A (ja)	1987-03-26	1987-03-26	光磁気記録装置
JP72559/1987		1987-03-26
JP62070278A JPS63237242A (ja)	1987-03-26	1987-03-26	光磁気記録方式
JP70273/1987		1987-03-26
JP62070274A JPS63237237A (ja)	1987-03-26	1987-03-26	光磁気記録媒体および記録方法
JP70279/1987		1987-03-26
JP62070273A JPS63237236A (ja)	1987-03-26	1987-03-26	光磁気記録媒体
JP70278/1987		1987-03-26
JP70274/1987		1987-03-26

Publications (1)

Publication Number	Publication Date
CA1340058C true CA1340058C (fr)	1998-09-29

Family

ID=27792446

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA 541367 Expired - Fee Related CA1340058C (fr)	1986-07-08	1987-07-06	Milieu d'enrigistrement magneto-optique permettant d'ecraser a l'aide dedeux ou plusieurs couches magnetiques; methode d'enrigistrement utilisant ce milieu

Country Status (1)

Country	Link
CA (1)	CA1340058C (fr)

1987
- 1987-07-06 CA CA 541367 patent/CA1340058C/fr not_active Expired - Fee Related

Legal Events

Date	Code	Title	Description
2005-09-29	MKLA	Lapsed

Publication	Publication Date	Title
US5132945A (en)	1992-07-21	Magnetooptical recording medium allowing overwriting with two or more magnetic layers and recording method utilizing the same
US5644566A (en)	1997-07-01	Magneto-optical recording medium
US5783320A (en)	1998-07-21	Magneto-optical recording medium and process for producing the same
US5862105A (en)	1999-01-19	Information recording method capable of verifying recorded information simultaneously with recording, and magneto-optical recording medium used in the method
EP0838814B1 (fr)	2002-02-27	Milieu d'enregistrement magnéto-optique permettant la surécriture avec deux ou plus de deux couches magnétiques et méthode d'enregistrement l'utilisant
EP0282356B1 (fr)	1994-12-07	Milieu d'enregistrement magnéto-optique et méthode
US5265073A (en)	1993-11-23	Overwritable magneto-optical recording medium having two-layer magnetic films wherein one of the films contains one or more of Cu, Ag, Ti, Mn, B, Pt, Si, Ge, Cr and Al, and a method of recording on the same
EP0658890A2 (fr)	1995-06-21	Milieu d'enregistrement magnéto-optique avec capacités de sur-écriture et méthode pour utiliser celui-ci
US5889740A (en)	1999-03-30	Magneto-optical recording medium and magneto-optical recording method
JPH10134435A (ja)	1998-05-22	光磁気記録媒体
US6028824A (en)	2000-02-22	Magnetooptical recording medium allowing overwriting with two or more magnetic layers
CA1340058C (fr)	1998-09-29	Milieu d'enrigistrement magneto-optique permettant d'ecraser a l'aide dedeux ou plusieurs couches magnetiques; methode d'enrigistrement utilisant ce milieu
US5768218A (en)	1998-06-16	Magneto-optical recording medium having a plurality of magnetic layers
US5635296A (en)	1997-06-03	Magneto-optical recording medium whereon overwriting is permitted by light intensity modulation
JP3359804B2 (ja)	2002-12-24	光磁気記録媒体及びそれを用いた光磁気記録方法
US5683803A (en)	1997-11-04	Magneto-optical recording medium and method of recording and reproducing using the same
US5982713A (en)	1999-11-09	Magneto-optical recording medium
JP3249713B2 (ja)	2002-01-21	光磁気記録媒体およびその記録方法
US5719831A (en)	1998-02-17	Magneto-optical recording medium cartridge which employs magnets
JP3770389B2 (ja)	2006-04-26	光磁気記録媒体
JP3516865B2 (ja)	2004-04-05	光磁気記録媒体及び再生装置
JP2001084658A (ja)	2001-03-30	光磁気記録媒体及びその記録方法
JPH07320315A (ja)	1995-12-08	光磁気記録媒体
JPH04349246A (ja)	1992-12-03	光磁気記録媒体の製造方法
JPH07320314A (ja)	1995-12-08	光磁気記録媒体