BR8201130A - Disco de gravacao otica de policula esticada - Google Patents

Disco de gravacao otica de policula esticada

Info

Publication number
BR8201130A
BR8201130A BR8201130A BR8201130A BR8201130A BR 8201130 A BR8201130 A BR 8201130A BR 8201130 A BR8201130 A BR 8201130A BR 8201130 A BR8201130 A BR 8201130A BR 8201130 A BR8201130 A BR 8201130A
Authority
BR
Brazil
Prior art keywords
recording disc
policula
strict
optically
plastic film
Prior art date
Application number
BR8201130A
Other languages
English (en)
Inventor
Sten R Gerfast
Original Assignee
Minnesota Mining & Mfg
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.)
Filing date
Publication date
Application filed by Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Publication of BR8201130A publication Critical patent/BR8201130A/pt

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
    • 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
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
BR8201130A 1981-03-05 1982-03-04 Disco de gravacao otica de policula esticada BR8201130A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/241,000 US4365257A (en) 1981-03-05 1981-03-05 Stretched-film optical recording disc

Publications (1)

Publication Number Publication Date
BR8201130A true BR8201130A (pt) 1983-01-11

Family

ID=22908821

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8201130A BR8201130A (pt) 1981-03-05 1982-03-04 Disco de gravacao otica de policula esticada

Country Status (9)

Country Link
US (1) US4365257A (pt)
EP (1) EP0060017B1 (pt)
JP (1) JPS57205837A (pt)
AT (1) ATE18956T1 (pt)
AU (1) AU551107B2 (pt)
BR (1) BR8201130A (pt)
CA (1) CA1171964A (pt)
DE (1) DE3270201D1 (pt)
SU (1) SU1326204A3 (pt)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4449139A (en) * 1981-05-18 1984-05-15 Eastman Kodak Company Optical disc unit, fabrication method and cooperating write and/or read apparatus
CA1170873A (en) * 1981-05-18 1984-07-17 Frederick F. Geyer Laminate optical disc and fabrication method
US4365258A (en) * 1981-05-18 1982-12-21 Eastman Kodak Company Optical disc unit, fabrication method and cooperating write and/or read apparatus
US4670072A (en) * 1982-10-13 1987-06-02 Minnesota Mining And Manufacturing Company Method of making a stretched surface recording disk
US4451836A (en) * 1982-10-14 1984-05-29 Eastman Kodak Company Optical disc write/read apparatus
US4462036A (en) * 1982-10-14 1984-07-24 Eastman Kodak Company Optical disc assemblies for optical disc write/read apparatus
US4464670A (en) * 1982-12-20 1984-08-07 Eastman Kodak Company Optical disk mounting means for write/read apparatus
NL8300478A (nl) * 1983-02-09 1984-09-03 Philips Nv Optisch uitleesbare geheugenschijf.
US4499477A (en) * 1983-03-14 1985-02-12 Minnesota Mining And Manufacturing Company Cover assembly for optical recording medium
US4579616A (en) * 1983-11-14 1986-04-01 The Perkin-Elmer Corporation Method of fabrication of an optically flat membrane
US4631609A (en) * 1984-02-16 1986-12-23 Minnesota Mining And Manufacturing Company Stretched surface recording disk substrate
US4963209A (en) * 1984-12-21 1990-10-16 Minnesota Mining And Manufacturing Company Method for making stretched surface recording disk
US4835647A (en) * 1984-12-21 1989-05-30 Minnesota Mining And Manufacturing Company Stretched surface recording medium
JPS61192029A (ja) * 1985-02-21 1986-08-26 Fuji Photo Film Co Ltd 磁気デイスクの製造方法
US4623570A (en) * 1985-03-14 1986-11-18 Minnesota Mining And Manufacturing Company Stable stretched surface recording medium
US4729805A (en) * 1985-03-14 1988-03-08 Minnesota Mining And Manufacturing Company Recording medium annealing process
USRE33187E (en) * 1985-03-14 1990-03-27 Minnesota Mining And Manufacturing Company Stable stretched surface recording medium
US4952435A (en) * 1985-10-03 1990-08-28 Fuji Photo Film Co., Ltd. Adhesive for a base-mounted flexible magnetic disc
EP0252513B1 (en) * 1986-07-11 1992-09-30 Kuraray Co., Ltd. Production of optical recording medium
JPH0777041B2 (ja) * 1987-07-20 1995-08-16 キヤノン株式会社 保護部材付き光記録媒体およびその光記録読取方法
US4847033A (en) * 1988-02-16 1989-07-11 Eastman Kodak Company Process for improving dimensional stability of polymeric films useful in optical disk assemblies
US4887178A (en) * 1988-06-13 1989-12-12 Minnesota Mining And Manufacturing Company Aligned stretched surface recording medium
US5787069A (en) * 1996-09-13 1998-07-28 Digital Armor Inc. Protective cover for an optical disc
EP0913762A1 (en) 1997-10-31 1999-05-06 Hewlett-Packard Company Data encoding scheme
US8289830B2 (en) * 2009-12-16 2012-10-16 International Business Machines Corporation Storing data on fiber data storage media
EP2541549A1 (en) * 2011-07-01 2013-01-02 Thomson Licensing Method and apparatus for data storage

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662804A (en) * 1953-01-06 1953-12-15 Ulric O Hutton Recording disk clamping device
FR1291594A (fr) * 1961-03-13 1962-04-27 Ribet Et Desjardins Perfectionnements à l'enregistrement photographique des traces oscilloscopiques
US3381085A (en) * 1962-05-09 1968-04-30 Minnesota Mining & Mfg Duplication of video disc recordings
US3509274A (en) * 1965-09-27 1970-04-28 Sony Corp Apparatus for the recording of video signals and for the normal slow motion or still picture reproduction of such signals
GB1168753A (en) * 1967-05-11 1969-10-29 Matsushita Electric Ind Co Ltd Rotary Disc Unit for Use in Magnetic Recording and Reproducing.
FR2147120B1 (pt) * 1971-07-23 1980-06-13 Matsushita Electric Ind Co Ltd
DE2342890A1 (de) * 1972-08-25 1974-03-07 Innovex Corp Informationsspeicher mit flexiblem, blattfoermigem informationstraeger, insbesondere schallplattenfoermigem magnettontraeger
US3954469A (en) * 1973-10-01 1976-05-04 Mca Disco-Vision, Inc. Method of creating a replicating matrix
FR2313733A2 (fr) * 1974-06-21 1976-12-31 Thomson Brandt Support d'information lisible optiquement par transmission et procede de fabrication dudit support
FR2275843A1 (fr) * 1974-06-21 1976-01-16 Thomson Brandt Dispositif de protection permanente d'un disque souple d'enregistrement compatible avec une lecture optique
JPS595115B2 (ja) * 1974-12-26 1984-02-02 キヤノン株式会社 ヒ−トモ−ドレ−ザ−ビ−ムキロクブザイ
US4175145A (en) * 1975-04-28 1979-11-20 Teletype Corporation Making memory structure for laser recording system
JPS5496002A (en) * 1978-01-13 1979-07-30 Hitachi Ltd Information recording plate
US4222070A (en) * 1978-03-13 1980-09-09 Eastman Kodak Company Recording video information on a flexible master disc
JPS54139702A (en) * 1978-04-21 1979-10-30 Victor Co Of Japan Ltd Information recoeding medium and production of the same
JPS5538655A (en) * 1978-09-08 1980-03-18 Sumitomo Chem Co Ltd Optical signal recording and reproducing member
FR2437668A1 (fr) * 1978-09-29 1980-04-25 Thomson Csf Disque optique protege
US4264911A (en) * 1979-08-20 1981-04-28 Mca Discovision, Inc. Optical recording disc and related method of manufacture

Also Published As

Publication number Publication date
EP0060017B1 (en) 1986-04-02
US4365257A (en) 1982-12-21
DE3270201D1 (en) 1986-05-07
ATE18956T1 (de) 1986-04-15
EP0060017A1 (en) 1982-09-15
CA1171964A (en) 1984-07-31
JPS57205837A (en) 1982-12-17
SU1326204A3 (ru) 1987-07-23
AU8111682A (en) 1982-09-09
AU551107B2 (en) 1986-04-17
JPH0323981B2 (pt) 1991-04-02

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Legal Events

Date Code Title Description
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 04/03/97