JPS57169996A - Magnetooptic storage element - Google Patents
Magnetooptic storage elementInfo
- Publication number
- JPS57169996A JPS57169996A JP5407081A JP5407081A JPS57169996A JP S57169996 A JPS57169996 A JP S57169996A JP 5407081 A JP5407081 A JP 5407081A JP 5407081 A JP5407081 A JP 5407081A JP S57169996 A JPS57169996 A JP S57169996A
- Authority
- JP
- Japan
- Prior art keywords
- film
- storage element
- thin film
- refractive index
- magnetooptic
- 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
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
Abstract
PURPOSE:To obtain a magnetooptic storage element which has large Kurr rotating angle and can prevent the adhering of dust corrosion, by forming the element with the lamination of a transparent thin film and a transparent protective film and the like having the prescribed relation of refractive index, and a magnetic substance thin film. CONSTITUTION:A magnetooptic storage element is formed by laminating a transparent protective film 1 such as glass having smaller refractive index than that of a transparent thin film 2, on the film 2 such as SiO2 and a magnetic substance thin film 3 of magnetization easy axis which is vertical to the film surface such as MnBi fixed to a support substrate 5 via a bonding layer 4. With this constitution, the Kurr rotating angle is increased with light interference at the film 2 having greater refractive index, the S/N can be increased, the corrosion and adhering of dust to the layer 3 can be prevented, and storage, reproduction and erase by laser can be achieved by the magnetooptic storage element.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5407081A JPS57169996A (en) | 1981-04-09 | 1981-04-09 | Magnetooptic storage element |
CA000393547A CA1185013A (en) | 1981-01-14 | 1982-01-04 | Magneto-optic memory medium |
US06/337,132 US4390600A (en) | 1981-01-14 | 1982-01-05 | Magneto-optic memory medium |
GB8200314A GB2094540B (en) | 1981-01-14 | 1982-01-06 | Magnetic-optical memory medium |
IT1905782A IT1149434B (en) | 1981-01-14 | 1982-01-12 | SUPPORT FOR A MAGNETO-OPTICAL MEMORY |
DE3200661A DE3200661C2 (en) | 1981-01-14 | 1982-01-12 | Magneto-optical storage |
FR8200451A FR2497994B1 (en) | 1981-01-14 | 1982-01-13 | MAGNETO-OPTICAL MEMORY SUPPORT |
US06/476,345 US4489139A (en) | 1981-01-14 | 1983-03-17 | Magneto-optic memory medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5407081A JPS57169996A (en) | 1981-04-09 | 1981-04-09 | Magnetooptic storage element |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14889089A Division JPH038155A (en) | 1989-06-12 | 1989-06-12 | Mangeto-optical recording element |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57169996A true JPS57169996A (en) | 1982-10-19 |
JPS6227458B2 JPS6227458B2 (en) | 1987-06-15 |
Family
ID=12960353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5407081A Granted JPS57169996A (en) | 1981-01-14 | 1981-04-09 | Magnetooptic storage element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57169996A (en) |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5979445A (en) * | 1982-10-28 | 1984-05-08 | Sharp Corp | Photomagnetic memory element |
JPS59110056A (en) * | 1982-12-13 | 1984-06-25 | Matsushita Electric Ind Co Ltd | Photo-magnetic recording medium |
JPS59116990A (en) * | 1982-12-24 | 1984-07-06 | Ricoh Co Ltd | Photomagnetic recording medium |
JPS6063747A (en) * | 1983-09-16 | 1985-04-12 | Sharp Corp | Magnetooptical storage element |
JPS60163247A (en) * | 1984-02-06 | 1985-08-26 | Ulvac Corp | Photomagnetic recording medium |
JPS62121945A (en) * | 1985-11-22 | 1987-06-03 | Mitsubishi Electric Corp | Production of magnetooptic memory element |
JPS62139156A (en) * | 1985-12-11 | 1987-06-22 | Sharp Corp | Optical recording device |
JPS62279536A (en) * | 1986-05-28 | 1987-12-04 | Seiko Epson Corp | Optical recording medium |
JPS62293539A (en) * | 1986-06-12 | 1987-12-21 | Konica Corp | Magneto-optical recording medium |
JPH01159840A (en) * | 1987-12-17 | 1989-06-22 | Matsushita Electric Ind Co Ltd | Optical disk |
JPH01160075A (en) * | 1987-12-17 | 1989-06-22 | Matsushita Electric Ind Co Ltd | Semiconductor laser |
JPH01171142A (en) * | 1987-12-25 | 1989-07-06 | Mitsubishi Kasei Corp | Magneto-optical recording medium |
JPH01173454A (en) * | 1987-12-28 | 1989-07-10 | Mitsubishi Kasei Corp | Magneto-optical recording medium |
JPH01173455A (en) * | 1987-12-28 | 1989-07-10 | Mitsubishi Kasei Corp | Magneto-optical recording medium |
JPH01287848A (en) * | 1988-05-16 | 1989-11-20 | Mitsubishi Kasei Corp | Magneto-optical recording medium |
JPH01315051A (en) * | 1988-03-07 | 1989-12-20 | Mitsubishi Kasei Corp | Magneto-optical recording medium |
US4939023A (en) * | 1984-08-13 | 1990-07-03 | Canon Kabushiki Kaisha | Opto-magnetic recording medium |
JPH03156755A (en) * | 1990-10-19 | 1991-07-04 | Sharp Corp | Production of optical memory device |
JPH04349247A (en) * | 1991-07-26 | 1992-12-03 | Sharp Corp | Magneto-optical storage element |
US5232790A (en) * | 1990-04-28 | 1993-08-03 | Kyocera Corporation | Magneto-optical recording disc and method of producing it |
JPH05334745A (en) * | 1992-12-25 | 1993-12-17 | Sharp Corp | Optical memory device |
JPH0644626A (en) * | 1992-08-27 | 1994-02-18 | Canon Inc | Magnetic thin film recording medium |
JPH06318347A (en) * | 1993-10-12 | 1994-11-15 | Daicel Chem Ind Ltd | Magneto-optical recording disk |
US5637411A (en) * | 1991-07-29 | 1997-06-10 | Hitachi Maxell, Ltd. | Magneto-optical recording medium and process for producing the same |
US5965286A (en) * | 1990-08-07 | 1999-10-12 | Hitachi Maxell, Ltd. | Magneto-optical recording medium |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0284118A (en) * | 1988-09-20 | 1990-03-26 | Hitachi Reinetsu Kk | Rock wool culture device |
JPH02111255U (en) * | 1989-02-27 | 1990-09-05 |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3174140A (en) * | 1959-07-01 | 1965-03-16 | Ibm | Magneto-optical recording and readout device |
US3594064A (en) * | 1969-06-25 | 1971-07-20 | Du Pont | Enhanced magneto-optic mirror apparatus |
JPS5114263A (en) * | 1974-07-26 | 1976-02-04 | Hitachi Ltd | Setsugono roeiboshiho |
JPS5232931A (en) * | 1975-09-09 | 1977-03-12 | Fuji Heavy Ind Ltd | Method for coating joint surfaces of two parts |
JPS5441703A (en) * | 1977-09-09 | 1979-04-03 | Hitachi Ltd | Information recording plate |
JPS54126005A (en) * | 1978-02-24 | 1979-09-29 | Rca Corp | Recording material |
JPS5534340A (en) * | 1978-08-31 | 1980-03-10 | Nippon Hoso Kyokai <Nhk> | Recording reproducing system by light beam |
JPS5539047A (en) * | 1978-09-13 | 1980-03-18 | Ricoh Co Ltd | Detection of advancing speed of recording element |
JPS5587332A (en) * | 1978-12-25 | 1980-07-02 | Matsushita Electric Ind Co Ltd | Magnetic light recording medium |
JPS5589928A (en) * | 1978-12-27 | 1980-07-08 | Fujitsu Ltd | Vertical magnetic recorder and its reproduction system |
JPS55139645A (en) * | 1979-04-12 | 1980-10-31 | Nippon Telegr & Teleph Corp <Ntt> | Transfer speed converter |
JPS55163640A (en) * | 1979-06-01 | 1980-12-19 | Sharp Corp | Magnetic/optical memory element |
JPS56137537A (en) * | 1980-03-27 | 1981-10-27 | Matsushita Electric Ind Co Ltd | Optical recording member and its manufacture |
-
1981
- 1981-04-09 JP JP5407081A patent/JPS57169996A/en active Granted
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3174140A (en) * | 1959-07-01 | 1965-03-16 | Ibm | Magneto-optical recording and readout device |
US3594064A (en) * | 1969-06-25 | 1971-07-20 | Du Pont | Enhanced magneto-optic mirror apparatus |
JPS5114263A (en) * | 1974-07-26 | 1976-02-04 | Hitachi Ltd | Setsugono roeiboshiho |
JPS5232931A (en) * | 1975-09-09 | 1977-03-12 | Fuji Heavy Ind Ltd | Method for coating joint surfaces of two parts |
JPS5441703A (en) * | 1977-09-09 | 1979-04-03 | Hitachi Ltd | Information recording plate |
JPS54126005A (en) * | 1978-02-24 | 1979-09-29 | Rca Corp | Recording material |
JPS5534340A (en) * | 1978-08-31 | 1980-03-10 | Nippon Hoso Kyokai <Nhk> | Recording reproducing system by light beam |
JPS5539047A (en) * | 1978-09-13 | 1980-03-18 | Ricoh Co Ltd | Detection of advancing speed of recording element |
JPS5587332A (en) * | 1978-12-25 | 1980-07-02 | Matsushita Electric Ind Co Ltd | Magnetic light recording medium |
JPS5589928A (en) * | 1978-12-27 | 1980-07-08 | Fujitsu Ltd | Vertical magnetic recorder and its reproduction system |
JPS55139645A (en) * | 1979-04-12 | 1980-10-31 | Nippon Telegr & Teleph Corp <Ntt> | Transfer speed converter |
JPS55163640A (en) * | 1979-06-01 | 1980-12-19 | Sharp Corp | Magnetic/optical memory element |
JPS56137537A (en) * | 1980-03-27 | 1981-10-27 | Matsushita Electric Ind Co Ltd | Optical recording member and its manufacture |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5979445A (en) * | 1982-10-28 | 1984-05-08 | Sharp Corp | Photomagnetic memory element |
JPH0479076B2 (en) * | 1982-10-28 | 1992-12-14 | Sharp Kk | |
JPS59110056A (en) * | 1982-12-13 | 1984-06-25 | Matsushita Electric Ind Co Ltd | Photo-magnetic recording medium |
JPS59116990A (en) * | 1982-12-24 | 1984-07-06 | Ricoh Co Ltd | Photomagnetic recording medium |
JPH0583971B2 (en) * | 1982-12-24 | 1993-11-30 | Ricoh Kk | |
JPH039546B2 (en) * | 1983-09-16 | 1991-02-08 | Sharp Kk | |
JPS6063747A (en) * | 1983-09-16 | 1985-04-12 | Sharp Corp | Magnetooptical storage element |
JPS60163247A (en) * | 1984-02-06 | 1985-08-26 | Ulvac Corp | Photomagnetic recording medium |
JPH0259529B2 (en) * | 1984-02-06 | 1990-12-12 | Ulvac Corp | |
US4939023A (en) * | 1984-08-13 | 1990-07-03 | Canon Kabushiki Kaisha | Opto-magnetic recording medium |
JPS62121945A (en) * | 1985-11-22 | 1987-06-03 | Mitsubishi Electric Corp | Production of magnetooptic memory element |
JPS62139156A (en) * | 1985-12-11 | 1987-06-22 | Sharp Corp | Optical recording device |
JPH0518187B2 (en) * | 1985-12-11 | 1993-03-11 | Sharp Kk | |
JPS62279536A (en) * | 1986-05-28 | 1987-12-04 | Seiko Epson Corp | Optical recording medium |
JPS62293539A (en) * | 1986-06-12 | 1987-12-21 | Konica Corp | Magneto-optical recording medium |
JPH01160075A (en) * | 1987-12-17 | 1989-06-22 | Matsushita Electric Ind Co Ltd | Semiconductor laser |
JPH01159840A (en) * | 1987-12-17 | 1989-06-22 | Matsushita Electric Ind Co Ltd | Optical disk |
JPH01171142A (en) * | 1987-12-25 | 1989-07-06 | Mitsubishi Kasei Corp | Magneto-optical recording medium |
JPH01173455A (en) * | 1987-12-28 | 1989-07-10 | Mitsubishi Kasei Corp | Magneto-optical recording medium |
JPH01173454A (en) * | 1987-12-28 | 1989-07-10 | Mitsubishi Kasei Corp | Magneto-optical recording medium |
JPH01315051A (en) * | 1988-03-07 | 1989-12-20 | Mitsubishi Kasei Corp | Magneto-optical recording medium |
JPH01287848A (en) * | 1988-05-16 | 1989-11-20 | Mitsubishi Kasei Corp | Magneto-optical recording medium |
US5232790A (en) * | 1990-04-28 | 1993-08-03 | Kyocera Corporation | Magneto-optical recording disc and method of producing it |
US5965286A (en) * | 1990-08-07 | 1999-10-12 | Hitachi Maxell, Ltd. | Magneto-optical recording medium |
JPH0542063B2 (en) * | 1990-10-19 | 1993-06-25 | Sharp Kk | |
JPH03156755A (en) * | 1990-10-19 | 1991-07-04 | Sharp Corp | Production of optical memory device |
JPH04349247A (en) * | 1991-07-26 | 1992-12-03 | Sharp Corp | Magneto-optical storage element |
US5637411A (en) * | 1991-07-29 | 1997-06-10 | Hitachi Maxell, Ltd. | Magneto-optical recording medium and process for producing the same |
JPH0644626A (en) * | 1992-08-27 | 1994-02-18 | Canon Inc | Magnetic thin film recording medium |
JPH05334745A (en) * | 1992-12-25 | 1993-12-17 | Sharp Corp | Optical memory device |
JPH06318347A (en) * | 1993-10-12 | 1994-11-15 | Daicel Chem Ind Ltd | Magneto-optical recording disk |
Also Published As
Publication number | Publication date |
---|---|
JPS6227458B2 (en) | 1987-06-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57169996A (en) | Magnetooptic storage element | |
JPS57130243A (en) | Information storage medium | |
JPS5766540A (en) | Optical information storage carrier and its manufacture | |
JPS5690438A (en) | Optical recording medium | |
JPS57120253A (en) | Magnetooptical storage elemen | |
JPS5766538A (en) | Information storage medium | |
JPS5766549A (en) | Magnetooptical storage element | |
ES285581U (en) | Optically readable disc. | |
AU4884985A (en) | Thermal recording medium and method | |
JPS5331105A (en) | Information recording member | |
JPS5763291A (en) | Optical recording medium | |
JPS5712428A (en) | Magnetooptic storage element | |
JPS5587332A (en) | Magnetic light recording medium | |
JPS5774852A (en) | Magnetic optical storing element | |
JPS5690439A (en) | Material for reproducing optical signal records | |
JPS56143547A (en) | Magnetooptical storage disk | |
JPS57135197A (en) | Information recording medium | |
JPS56156943A (en) | Optical disk | |
JPS55163640A (en) | Magnetic/optical memory element | |
JPS5712426A (en) | Optical disk recording carrier | |
JPS57138064A (en) | Optical disc medium | |
JPS56148749A (en) | Optical thin-film video disk | |
JPS6423435A (en) | Optical recording medium with protective member and optical recording and reading system thereof | |
JPS5750337A (en) | Information recording disk | |
JPS5548836A (en) | Signal recording board and recording and reproducing method |