JPS63161404U - - Google Patents
Info
- Publication number
- JPS63161404U JPS63161404U JP1987055202U JP5520287U JPS63161404U JP S63161404 U JPS63161404 U JP S63161404U JP 1987055202 U JP1987055202 U JP 1987055202U JP 5520287 U JP5520287 U JP 5520287U JP S63161404 U JPS63161404 U JP S63161404U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- recording medium
- excitation coil
- coil
- magneto
- 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
Links
- 230000005284 excitation Effects 0.000 claims description 7
- 239000000696 magnetic material Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
-
- 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
- G11B11/10532—Heads
- G11B11/10534—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording
- G11B11/10536—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording using thermic beams, e.g. lasers
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987055202U JPH0633525Y2 (ja) | 1987-04-10 | 1987-04-10 | 光磁気デイスク装置の磁界印加機構 |
| US07/176,275 US4890178A (en) | 1987-04-10 | 1988-03-31 | Magnetic bias coil for a magneto-optical recording apparatus |
| EP88105481A EP0286070B1 (en) | 1987-04-10 | 1988-04-06 | A magnetic bias coil of a magneto-optical recording apparatus |
| DE8888105481T DE3877236T2 (de) | 1987-04-10 | 1988-04-06 | Vorspann-magnetfeldspule eines magnetooptischen aufzeichnungsgeraetes. |
| KR1019880003845A KR910003934B1 (ko) | 1987-04-10 | 1988-04-06 | 광자기 기록장치의 자기 바이어스 코일 |
| ES88105481T ES2044996T3 (es) | 1987-04-10 | 1988-04-06 | Bobina de polarizacion magnetica de un aparato de registro magneto-optico. |
| CA000563614A CA1306056C (en) | 1987-04-10 | 1988-04-08 | Magnetic bias coil of a magneto-optical recording apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987055202U JPH0633525Y2 (ja) | 1987-04-10 | 1987-04-10 | 光磁気デイスク装置の磁界印加機構 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63161404U true JPS63161404U (US07860544-20101228-C00003.png) | 1988-10-21 |
| JPH0633525Y2 JPH0633525Y2 (ja) | 1994-08-31 |
Family
ID=12992086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987055202U Expired - Lifetime JPH0633525Y2 (ja) | 1987-04-10 | 1987-04-10 | 光磁気デイスク装置の磁界印加機構 |
Country Status (7)
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5105408A (en) * | 1988-05-12 | 1992-04-14 | Digital Equipment Corporation | Optical head with flying lens |
| NL8902615A (nl) * | 1988-11-15 | 1990-06-01 | Seiko Epson Corp | Optisch registratiestelsel. |
| US5287334A (en) * | 1989-07-29 | 1994-02-15 | Sony Corporation | Magneto-optical pickup apparatus and magneto-optical recording/reproducing apparatus |
| US5197049A (en) * | 1989-08-11 | 1993-03-23 | Apple Computer, Inc. | Head and media for optical data storage |
| KR930009225B1 (ko) * | 1989-09-05 | 1993-09-24 | 미쯔비시덴기 가부시끼가이샤 | 광자기 기록 매체, 광자기 기록 장치 및 광자기 기록 매체의 제조방법 |
| JPH03122855A (ja) * | 1989-10-06 | 1991-05-24 | Fuji Xerox Co Ltd | 光磁気記録型記録装置の浮動ヘッド |
| US5124961A (en) * | 1989-12-28 | 1992-06-23 | Fuji Xerox Co., Ltd. | Floating head for use with a recording apparatus of magneto-optical memory device |
| JPH03250402A (ja) * | 1990-02-28 | 1991-11-08 | Canon Inc | 磁気記録装置及びシステム |
| US5260921A (en) * | 1991-10-01 | 1993-11-09 | Tdk Corporation | Magnetooptical recording method |
| US5307328A (en) * | 1991-12-30 | 1994-04-26 | U.S. Philips Corporation | Magneto-optical scanning device with small coil |
| US6226233B1 (en) | 1996-07-30 | 2001-05-01 | Seagate Technology, Inc. | Magneto-optical system utilizing MSR media |
| US5903525A (en) * | 1997-04-18 | 1999-05-11 | Read-Rite Corporation | Coil for use with magneto-optical head |
| WO1998048409A2 (en) * | 1997-04-18 | 1998-10-29 | Read-Rite Corporation | Electro-magnetic coil assembly |
| US5886959A (en) * | 1997-04-18 | 1999-03-23 | Read-Rite Corporation | Thin-film electro-magnetic coil design for use in a flying magneto-optical head |
| US5978319A (en) * | 1997-11-06 | 1999-11-02 | Read-Rite Corporation | Thin electro-magnetic coil assembly for attachment to a slider |
| US6351436B1 (en) * | 1998-05-11 | 2002-02-26 | Maxtor Corporation | Field enhancing magnetic pole for magneto-optical recording and reproducing device |
| US6130864A (en) * | 1999-03-04 | 2000-10-10 | Terastor Corporation | Method and apparatus for generating magnetic field for magneto-optic recording system |
| WO2002099800A1 (en) * | 2001-06-01 | 2002-12-12 | Fujitsu Limited | Magneto-optic recording medium device |
| US20060007790A1 (en) * | 2002-10-29 | 2006-01-12 | Koninklijke Philips Electronics, N.V. | Magneto-optical device |
| US20060171074A1 (en) * | 2004-02-25 | 2006-08-03 | Wagner J A | Shutter lock for use in a flexible data storage card |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6029904A (ja) * | 1983-07-28 | 1985-02-15 | Seiko Instr & Electronics Ltd | 光磁気記録用ヘッド |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3626114A (en) * | 1969-03-10 | 1971-12-07 | California Inst Of Techn | Thermomagnetic recording and magneto-optic playback system |
| JPS57162137A (en) * | 1981-03-28 | 1982-10-05 | Kokusai Denshin Denwa Co Ltd <Kdd> | Photomagnetic recording and reproducing system |
| US4610009A (en) * | 1983-05-23 | 1986-09-02 | Xerox Corporation | Writing, erasing and readout system for a magneto-optic recording medium |
| JPH065585B2 (ja) * | 1984-02-15 | 1994-01-19 | 株式会社日立製作所 | 光磁気記憶装置 |
| JPH06105507B2 (ja) * | 1984-10-26 | 1994-12-21 | 日本電気株式会社 | 光磁気記録再生消去装置 |
| JP2574747B2 (ja) * | 1985-11-20 | 1997-01-22 | 株式会社日立製作所 | 光磁気記録装置 |
-
1987
- 1987-04-10 JP JP1987055202U patent/JPH0633525Y2/ja not_active Expired - Lifetime
-
1988
- 1988-03-31 US US07/176,275 patent/US4890178A/en not_active Expired - Fee Related
- 1988-04-06 KR KR1019880003845A patent/KR910003934B1/ko not_active IP Right Cessation
- 1988-04-06 DE DE8888105481T patent/DE3877236T2/de not_active Expired - Fee Related
- 1988-04-06 EP EP88105481A patent/EP0286070B1/en not_active Expired - Lifetime
- 1988-04-06 ES ES88105481T patent/ES2044996T3/es not_active Expired - Lifetime
- 1988-04-08 CA CA000563614A patent/CA1306056C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6029904A (ja) * | 1983-07-28 | 1985-02-15 | Seiko Instr & Electronics Ltd | 光磁気記録用ヘッド |
Also Published As
| Publication number | Publication date |
|---|---|
| US4890178A (en) | 1989-12-26 |
| ES2044996T3 (es) | 1994-01-16 |
| EP0286070A2 (en) | 1988-10-12 |
| CA1306056C (en) | 1992-08-04 |
| KR910003934B1 (ko) | 1991-06-17 |
| KR880013130A (ko) | 1988-11-30 |
| DE3877236D1 (de) | 1993-02-18 |
| JPH0633525Y2 (ja) | 1994-08-31 |
| DE3877236T2 (de) | 1993-08-05 |
| EP0286070A3 (en) | 1990-09-12 |
| EP0286070B1 (en) | 1993-01-07 |
