FR2215665B1 - - Google Patents

Info

Publication number
FR2215665B1
FR2215665B1 FR7401438A FR7401438A FR2215665B1 FR 2215665 B1 FR2215665 B1 FR 2215665B1 FR 7401438 A FR7401438 A FR 7401438A FR 7401438 A FR7401438 A FR 7401438A FR 2215665 B1 FR2215665 B1 FR 2215665B1
Authority
FR
France
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.)
Expired
Application number
FR7401438A
Other versions
FR2215665A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Publication of FR2215665A1 publication Critical patent/FR2215665A1/fr
Application granted granted Critical
Publication of FR2215665B1 publication Critical patent/FR2215665B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0057—Intermediate mediums, i.e. mediums provided with an information structure not specific to the method of reproducing or duplication such as matrixes for mechanical pressing of an information structure ; record carriers having a relief information structure provided with or included in layers not specific for a single reproducing method; apparatus or processes specially adapted for their manufacture
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/68—Record carriers
    • G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
    • G11B3/705—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers characterised by the selection of the material only
    • G11B3/707—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers characterised by the selection of the material only for video discs with grooves

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
FR7401438A 1973-01-29 1974-01-16 Expired FR2215665B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/327,804 US4113897A (en) 1973-01-29 1973-01-29 Smooth groove formation method employing spin coating of negative replica of inscribed disc

Publications (2)

Publication Number Publication Date
FR2215665A1 FR2215665A1 (fr) 1974-08-23
FR2215665B1 true FR2215665B1 (fr) 1976-10-08

Family

ID=23278140

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7401438A Expired FR2215665B1 (fr) 1973-01-29 1974-01-16

Country Status (9)

Country Link
US (1) US4113897A (fr)
JP (1) JPS5126244B2 (fr)
CA (1) CA999530A (fr)
ES (1) ES422708A1 (fr)
FR (1) FR2215665B1 (fr)
GB (1) GB1452551A (fr)
IT (1) IT1006148B (fr)
NL (1) NL7400816A (fr)
SE (1) SE385990B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51141740U (fr) * 1975-05-07 1976-11-15
JPS6053675B2 (ja) * 1978-09-20 1985-11-27 富士写真フイルム株式会社 スピンコ−テイング方法
US4472337A (en) * 1979-11-07 1984-09-18 Rca Corporation Video disc processing
JPS5877115U (ja) * 1981-11-19 1983-05-25 ヤンマーディーゼル株式会社 内燃機関の冷却装置
US4515830A (en) * 1983-11-29 1985-05-07 Rca Corporation Solvent-cast capacitive high density information disc
US6587427B1 (en) 1998-06-01 2003-07-01 Terastor Corporation Magneto-optical recording medium

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1078265A (en) * 1908-10-14 1913-11-11 New Jersey Patent Co Process of making phonograph-records.
US2407179A (en) * 1942-12-31 1946-09-03 Dow Chemical Co Instantaneous recording composition
US2670308A (en) * 1950-04-27 1954-02-23 Union Carbide & Carbon Corp Microgroove polystyrene phonograph record
US3198657A (en) * 1964-09-17 1965-08-03 Ibm Process for spin coating objects
US3431333A (en) * 1967-01-04 1969-03-04 Nicola Fiornascente Method for making mechanically grooved phonograph records
US3687664A (en) * 1968-07-24 1972-08-29 Gauss Electrophysics Inc Duplicating process for video disc records
US3652314A (en) * 1969-01-02 1972-03-28 Schuyler Dev Corp Method for renewing, resurfacing, and preserving phonograph records
DE2053837C2 (de) * 1970-11-03 1974-01-24 Ted Bildplatten Ag. Aeg-Telefunkenteldec, Zug (Schweiz) Verfahren zum Einprägen einer modulierten Rillenspirale in einen Informationsträger
US3767445A (en) * 1971-10-14 1973-10-23 Bell Telephone Labor Inc Embossing techniques for producing integrated optical circuits
US3779806A (en) * 1972-03-24 1973-12-18 Ibm Electron beam sensitive polymer t-butyl methacrylate resist
US3795534A (en) * 1972-04-19 1974-03-05 Rca Corp Manufacture of video discs

Also Published As

Publication number Publication date
US4113897A (en) 1978-09-12
DE2401611B2 (de) 1977-03-10
FR2215665A1 (fr) 1974-08-23
AU6477174A (en) 1975-07-24
ES422708A1 (es) 1976-04-16
IT1006148B (it) 1976-09-30
DE2401611A1 (de) 1974-08-01
NL7400816A (fr) 1974-07-31
JPS49107504A (fr) 1974-10-12
GB1452551A (en) 1976-10-13
SE385990B (sv) 1976-07-26
JPS5126244B2 (fr) 1976-08-05
CA999530A (en) 1976-11-09

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Legal Events

Date Code Title Description
ST Notification of lapse