DE3885711D1 - Magnetooptischer Aufzeichnungsträger. - Google Patents

Magnetooptischer Aufzeichnungsträger.

Info

Publication number: DE3885711D1
Authority: DE; Germany
Prior art keywords: magneto; recording medium; optical recording; optical; medium
Prior art date: 1987-10-26
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

DE88310004T

Other languages

English (en)

Other versions

DE3885711T2 (de

Inventor

Richard F C O Minnesot Willson

Vaughn W C O Minnesota Halling

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.)

3M Co

Original Assignee

Minnesota Mining and Manufacturing Co

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.)

1987-10-26

Filing date

1988-10-25

Publication date

1993-12-23

1988-10-25 Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co

1993-12-23 Publication of DE3885711D1 publication Critical patent/DE3885711D1/de

1994-05-19 Application granted granted Critical

1994-05-19 Publication of DE3885711T2 publication Critical patent/DE3885711T2/de

2008-10-26 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

Classifications

- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
- G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
- G11B11/10589—Details
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/90—Magnetic feature
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9265—Special properties
- Y10S428/928—Magnetic property

DE3885711T 1987-10-26 1988-10-25 Magnetooptischer Aufzeichnungsträger. Expired - Fee Related DE3885711T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US07/112,735 US4950556A (en)	1987-10-26	1987-10-26	Magneto-optic recording medium

Publications (2)

Publication Number	Publication Date
DE3885711D1 true DE3885711D1 (de)	1993-12-23
DE3885711T2 DE3885711T2 (de)	1994-05-19

Family

ID=22345587

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE3885711T Expired - Fee Related DE3885711T2 (de)	1987-10-26	1988-10-25	Magnetooptischer Aufzeichnungsträger.

Country Status (4)

Country	Link
US (1)	US4950556A (de)
EP (1)	EP0314424B1 (de)
JP (1)	JP2735251B2 (de)
DE (1)	DE3885711T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0470546B1 (de) *	1990-08-07	1998-11-04	Hitachi Maxell Ltd.	Magnetooptischer Aufzeichnungsträger
US5361248A (en) *	1992-06-01	1994-11-01	Eastman Kodak Company	Direct overwrite magneto-optical storage medium not requiring an initialization magnet
FR2746206B1 (fr) *	1996-03-15	1998-04-10		Support d'enregistrement magneto-optique et procede de realisation
JP2000231749A (ja) *	1999-02-09	2000-08-22	Sony Corp	光磁気記録媒体及びその製造方法

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3949387A (en) *	1972-08-29	1976-04-06	International Business Machines Corporation	Beam addressable film using amorphous magnetic material
US3856579A (en) *	1972-12-04	1974-12-24	Battelle Development Corp	Sputtered magnetic materials comprising rare-earth metals and method of preparation
US4170689A (en) *	1974-12-25	1979-10-09	Nippon Telegraph And Telephone Public Corporation	Magneto-optic thin film for memory devices
JPS55107773A (en) *	1979-02-09	1980-08-19	Matsushita Electric Ind Co Ltd	Manufacture of amorphous film
JPS6032331B2 (ja) *	1980-03-12	1985-07-27	ケイディディ株式会社	磁気光学記録媒体
US4404077A (en) *	1981-04-07	1983-09-13	Fournier Paul R	Integrated sputtering apparatus and method
US4693943A (en) *	1982-05-10	1987-09-15	Canon Kabushiki Kaisha	Magnetooptical recording medium
US4414087A (en) *	1983-01-31	1983-11-08	Meckel Benjamin B	Magnetically-assisted sputtering method for producing vertical recording media
JPS59139616A (ja) *	1983-01-31	1984-08-10	Hitachi Ltd	磁性薄膜の製造方法
US4684454A (en) *	1983-05-17	1987-08-04	Minnesota Mining And Manufacturing Company	Sputtering process for making magneto optic alloy
US4569881A (en) *	1983-05-17	1986-02-11	Minnesota Mining And Manufacturing Company	Multi-layer amorphous magneto optical recording medium
US4615944A (en) *	1983-05-17	1986-10-07	Minnesota Mining And Manufacturing Company	Amorphous magneto optical recording medium
EP0151445B2 (de) *	1984-01-26	1993-11-03	Hitachi Maxell Ltd.	Herstellung Magnetischer Aufzeichnungsträger
JPH0630300B2 (ja) *	1984-05-01	1994-04-20	株式会社リコー	非晶質磁気光学層
JP2602425B2 (ja) *	1984-05-01	1997-04-23	株式会社リコー	非晶質磁気光学層
JPH0782943B2 (ja) *	1984-05-04	1995-09-06	株式会社リコー	非晶質磁気光学層
JPS6184004A (ja) *	1984-10-01	1986-04-28	Sumitomo Metal Mining Co Ltd	光磁気記録媒体
JPS6187306A (ja) *	1984-10-03	1986-05-02	Oki Electric Ind Co Ltd	光磁気記録用材料
KR890004257B1 (ko) *	1984-10-29	1989-10-28	니뽕 빅터 가부시끼가이샤	자기 기록매체 및 그 제조법
JPS61113155A (ja) *	1984-11-07	1986-05-31	Canon Inc	光磁気記録媒体
KR870006535A (ko) *	1985-02-27	1987-07-13	나가이 아쯔시	광자기 기록 매체
WO1986007651A1 (en) *	1985-06-21	1986-12-31	Sumitomo Metal Mining Co., Ltd.	Magnetic recording medium
JPH0782671B2 (ja) *	1985-08-26	1995-09-06	セイコーエプソン株式会社	光磁気記録媒体
JPS6289254A (ja) *	1985-10-16	1987-04-23	Sumitomo Metal Mining Co Ltd	光磁気記録媒体
JPS62112252A (ja) *	1985-11-11	1987-05-23	Seiko Instr & Electronics Ltd	光磁気記録媒体

1987
- 1987-10-26 US US07/112,735 patent/US4950556A/en not_active Expired - Fee Related
1988
- 1988-10-24 JP JP63266291A patent/JP2735251B2/ja not_active Expired - Lifetime
- 1988-10-25 EP EP88310004A patent/EP0314424B1/de not_active Expired - Lifetime
- 1988-10-25 DE DE3885711T patent/DE3885711T2/de not_active Expired - Fee Related

Also Published As

Publication number	Publication date
JPH01166509A (ja)	1989-06-30
JP2735251B2 (ja)	1998-04-02
EP0314424A3 (en)	1990-07-11
EP0314424B1 (de)	1993-11-18
EP0314424A2 (de)	1989-05-03
DE3885711T2 (de)	1994-05-19
US4950556A (en)	1990-08-21

Legal Events

Date	Code	Title	Description
1994-12-15	8364	No opposition during term of opposition
2000-12-14	8339	Ceased/non-payment of the annual fee

Publication	Publication Date	Title
DE3778168D1 (de)	1992-05-21	Magnetisches aufzeichnungsmedium.
DE3877234D1 (de)	1993-02-18	Magnetooptisches informationstragendes medium.
DE3773239D1 (de)	1991-10-31	Magnetisches aufzeichnungsmedium.
DE3886440D1 (de)	1994-02-03	Aufzeichnungsmittel.
DE3888109D1 (de)	1994-04-07	Magneto-optisches Aufzeichnungsmedium.
DE3583599D1 (de)	1991-08-29	Informationsaufzeichnungsmedium.
DE3671122D1 (de)	1990-06-13	Informationsaufzeichnungsmedium.
DE68921527D1 (de)	1995-04-13	Magnetooptischer Aufzeignungsträger.
DE3887304D1 (de)	1994-03-03	Optisches Aufzeichnungsmedium.
DE3883826D1 (de)	1993-10-14	Optisches Aufzeichnungsmedium.
DE3680478D1 (de)	1991-08-29	Magnetooptisches aufzeichnungsmedium.
DE3853640D1 (de)	1995-06-01	Informationsaufzeichnungsmedium.
DE3886726D1 (de)	1994-02-10	Magneto-optisches aufnahmegerät.
DE69112168D1 (de)	1995-09-21	Magnetooptisches Aufzeichnungsmedium.
DE69021657D1 (de)	1995-09-21	Opto-magnetisches Aufzeichnungsmedium.
DE68917903D1 (de)	1994-10-06	Magneto-optischer Aufzeichnungsträger.
DE68923782D1 (de)	1995-09-14	Magneto-optisches Scheibenaufzeichnungsgerät.
DE3580635D1 (de)	1991-01-03	Magnetisches aufzeichnungsmedium.
DE3575357D1 (de)	1990-02-15	Magnetisches aufzeichnungsmedium.
DE69024747D1 (de)	1996-02-22	Magnetooptisches Aufzeichnungsmedium
DE3854370D1 (de)	1995-10-05	Datenaufzeichnungsmedium.
DE69020992D1 (de)	1995-08-24	Magneto-optisches Aufzeichnungsmedium.
DE68925393D1 (de)	1996-02-22	Magneto-optisches Aufzeichnungsmedium
DE69021789D1 (de)	1995-09-28	Aufzeichnungsmedium.
DE3873332D1 (de)	1992-09-03	Magnetisches speichermedium.