IT1088701B - Elemento per la memorizzazione di informazioni - Google Patents
Elemento per la memorizzazione di informazioniInfo
- Publication number
- IT1088701B IT1088701B IT30206/77A IT3020677A IT1088701B IT 1088701 B IT1088701 B IT 1088701B IT 30206/77 A IT30206/77 A IT 30206/77A IT 3020677 A IT3020677 A IT 3020677A IT 1088701 B IT1088701 B IT 1088701B
- Authority
- IT
- Italy
- Prior art keywords
- storing information
- storing
- information
- 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
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US78203277A | 1977-03-28 | 1977-03-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1088701B true IT1088701B (it) | 1985-06-10 |
Family
ID=25124733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT30206/77A IT1088701B (it) | 1977-03-28 | 1977-11-29 | Elemento per la memorizzazione di informazioni |
Country Status (9)
Country | Link |
---|---|
JP (2) | JPS53120506A (it) |
AU (1) | AU514899B2 (it) |
DE (1) | DE2757737A1 (it) |
FR (1) | FR2385535A1 (it) |
GB (1) | GB1590296A (it) |
HK (1) | HK49783A (it) |
IT (1) | IT1088701B (it) |
MY (1) | MY8400273A (it) |
NL (1) | NL191658C (it) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2817945A1 (de) * | 1977-08-29 | 1979-03-15 | Rca Corp | Plattenrohling, insbesondere fuer eine optische bildplatte |
US4195312A (en) * | 1978-02-24 | 1980-03-25 | Rca Corporation | Recorder and antireflective record blank having an optically passive transparent layer |
JPS56156941A (en) * | 1980-05-06 | 1981-12-03 | Nippon Telegr & Teleph Corp <Ntt> | Optical recording medium |
DE3167601D1 (en) * | 1980-07-25 | 1985-01-17 | Asahi Chemical Ind | Recording material |
FR2488711B1 (fr) * | 1980-08-13 | 1985-06-28 | Thomson Csf | Procede thermo-optique d'inscription d'information et support d'information destine a la mise en oeuvre de ce procede |
JPS5952442A (ja) * | 1982-09-14 | 1984-03-27 | Kokusai Denshin Denwa Co Ltd <Kdd> | 光磁気記録媒体 |
JPS59210545A (ja) * | 1984-04-20 | 1984-11-29 | Hitachi Ltd | 情報記録媒体 |
JPH0624272U (ja) * | 1992-08-31 | 1994-03-29 | 東芝機器株式会社 | 可撓性チューブの開閉装置 |
JP4778300B2 (ja) | 2004-12-15 | 2011-09-21 | 株式会社リコー | 追記型光記録媒体 |
WO2006098506A1 (en) * | 2005-03-17 | 2006-09-21 | Ricoh Company, Ltd. | Optical recording medium |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3665483A (en) * | 1969-06-06 | 1972-05-23 | Chase Manhattan Capital Corp | Laser recording medium |
US3651281A (en) * | 1969-06-06 | 1972-03-21 | Carl H Becker | Laser recording system using photomagnetically magnetizable storage medium |
DE2048430B2 (de) * | 1970-10-02 | 1972-11-30 | Licentia Patent-Verwaltungs-GmbH, 6000 Prankfurt | Verfahren zur erzeugung von vorzugsweise mechanisch abtastbaren, reliefartigen vertiefungen oder erhebungen auf der oberflaeche eines informationstraegers |
DE2522928C2 (de) * | 1974-05-25 | 1984-04-05 | Canon K.K., Tokyo | Aufzeichnungsträger, Verfahren zu dessen Herstellung und Aufzeichnungsverfahren |
JPS52155474A (en) * | 1976-06-21 | 1977-12-23 | Nippon Mining Co | Magnetic force sorting device |
-
1977
- 1977-11-23 AU AU30876/77A patent/AU514899B2/en not_active Expired
- 1977-11-29 IT IT30206/77A patent/IT1088701B/it active
- 1977-11-30 NL NL7713230A patent/NL191658C/xx not_active IP Right Cessation
- 1977-12-20 GB GB52944/77A patent/GB1590296A/en not_active Expired
- 1977-12-22 JP JP15547477A patent/JPS53120506A/ja active Granted
- 1977-12-23 DE DE19772757737 patent/DE2757737A1/de active Granted
- 1977-12-27 FR FR7739337A patent/FR2385535A1/fr active Granted
-
1983
- 1983-11-03 HK HK497/83A patent/HK49783A/xx not_active IP Right Cessation
-
1984
- 1984-12-30 MY MY273/84A patent/MY8400273A/xx unknown
-
1987
- 1987-06-10 JP JP62145017A patent/JPS6352347A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
NL7713230A (nl) | 1978-10-02 |
FR2385535A1 (fr) | 1978-10-27 |
JPS6352347A (ja) | 1988-03-05 |
MY8400273A (en) | 1984-12-31 |
JPS6259372B2 (it) | 1987-12-10 |
AU3087677A (en) | 1979-05-31 |
FR2385535B1 (it) | 1984-05-04 |
DE2757737A1 (de) | 1978-10-05 |
NL191658C (nl) | 1995-12-02 |
JPH0222453B2 (it) | 1990-05-18 |
JPS53120506A (en) | 1978-10-21 |
AU514899B2 (en) | 1981-03-05 |
DE2757737C2 (it) | 1988-05-05 |
GB1590296A (en) | 1981-05-28 |
HK49783A (en) | 1983-11-11 |
NL191658B (nl) | 1995-08-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19961127 |