KR920005145U - 광자기 기록 디스크 - Google Patents
광자기 기록 디스크Info
- Publication number
- KR920005145U KR920005145U KR2019900013508U KR900013508U KR920005145U KR 920005145 U KR920005145 U KR 920005145U KR 2019900013508 U KR2019900013508 U KR 2019900013508U KR 900013508 U KR900013508 U KR 900013508U KR 920005145 U KR920005145 U KR 920005145U
- Authority
- KR
- South Korea
- Prior art keywords
- magneto
- optical recording
- recording disc
- disc
- optical
- Prior art date
Links
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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2525—Magneto-optical [MO] discs
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019900013508U KR950006432Y1 (ko) | 1990-08-31 | 1990-08-31 | 광자기 기록 디스크 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019900013508U KR950006432Y1 (ko) | 1990-08-31 | 1990-08-31 | 광자기 기록 디스크 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR920005145U true KR920005145U (ko) | 1992-03-26 |
KR950006432Y1 KR950006432Y1 (ko) | 1995-08-10 |
Family
ID=19302944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019900013508U KR950006432Y1 (ko) | 1990-08-31 | 1990-08-31 | 광자기 기록 디스크 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR950006432Y1 (ko) |
-
1990
- 1990-08-31 KR KR2019900013508U patent/KR950006432Y1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR950006432Y1 (ko) | 1995-08-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
REGI | Registration of establishment | ||
FPAY | Annual fee payment |
Payment date: 20020726 Year of fee payment: 8 |
|
LAPS | Lapse due to unpaid annual fee |