IT1065861B - Rivestimento metallico perfezionato per dischi video - Google Patents

Rivestimento metallico perfezionato per dischi video

Info

Publication number
IT1065861B
IT1065861B IT49719/76A IT4971976A IT1065861B IT 1065861 B IT1065861 B IT 1065861B IT 49719/76 A IT49719/76 A IT 49719/76A IT 4971976 A IT4971976 A IT 4971976A IT 1065861 B IT1065861 B IT 1065861B
Authority
IT
Italy
Prior art keywords
metal coating
video discs
perfected metal
perfected
discs
Prior art date
Application number
IT49719/76A
Other languages
English (en)
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
Application granted granted Critical
Publication of IT1065861B publication Critical patent/IT1065861B/it

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
    • G11B9/061—Record carriers characterised by their structure or form or by the selection of the material; Apparatus or processes specially adapted for the manufacture of record carriers
    • G11B9/063—Record carriers characterised by their structure or form or by the selection of the material; Apparatus or processes specially adapted for the manufacture of record carriers characterised by the selection of the material
    • G11B9/066—Electrically conductive layers
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal
    • Y10T428/31692—Next to addition polymer from unsaturated monomers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Multimedia (AREA)
  • Laminated Bodies (AREA)
  • Chemically Coating (AREA)
  • Physical Vapour Deposition (AREA)
  • Conductive Materials (AREA)
IT49719/76A 1975-07-25 1976-05-31 Rivestimento metallico perfezionato per dischi video IT1065861B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/599,129 US4004080A (en) 1975-07-25 1975-07-25 Metal coating for video discs

Publications (1)

Publication Number Publication Date
IT1065861B true IT1065861B (it) 1985-02-25

Family

ID=24398331

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49719/76A IT1065861B (it) 1975-07-25 1976-05-31 Rivestimento metallico perfezionato per dischi video

Country Status (7)

Country Link
US (1) US4004080A (it)
JP (1) JPS5215429A (it)
AU (1) AU499568B2 (it)
DE (1) DE2632582A1 (it)
FR (1) FR2332120A1 (it)
IT (1) IT1065861B (it)
NL (1) NL7608191A (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206256A (en) * 1975-08-21 1980-06-03 Rca Corporation Metallized video disc having an insulating layer thereon
US4072985A (en) * 1977-05-04 1978-02-07 Rca Corporation Video disc with a dielectric layer formed from styrene and nitrogen
US4077051A (en) * 1977-05-04 1978-02-28 Rca Corporation Video disc with a conductive layer having an oxygen content gradient
US4077052A (en) * 1977-05-04 1978-02-28 Rca Corporation Video disc capacitive recording means with a conductive bilayer
US4137550A (en) * 1977-11-18 1979-01-30 Rca Corporation Video disc with a dielectric layer formed from acetylene and nitrogen
US4296178A (en) * 1979-05-18 1981-10-20 Varian Associates, Inc. Article comprising a substrate and chromium alloy coating
FR2474223A1 (fr) * 1980-01-23 1981-07-24 Thomson Csf Procede d'inscription thermo-optique d'information et support d'information destine a la mise en oeuvre de ce procede
FR2474222A1 (fr) * 1980-01-23 1981-07-24 Thomson Csf Procede d'inscription thermo-optique d'information et support d'information destine a la mise en oeuvre de ce procede
FR2475271A1 (fr) * 1980-02-01 1981-08-07 Thomson Csf Structure de memoire permanente, a inscription thermo-optique et lecture optique, et procede d'inscription dans une telle structure
JPS586536A (ja) * 1981-07-01 1983-01-14 Pioneer Electronic Corp 光学式デイスク
US4405670A (en) * 1982-05-28 1983-09-20 Rca Corporation Capacitance electronic disc stamper having improved stain resistance and method for the manufacture thereof
US4663753A (en) * 1985-05-28 1987-05-05 Rca Corporation Recording medium and method of making the same
JPH01142077A (ja) * 1987-11-27 1989-06-02 Toppan Printing Co Ltd スタンパーの保存方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645726A (en) * 1965-05-26 1972-02-29 Int Nickel Co Resistance to stress-corrosion cracking in nickel alloys
US3649187A (en) * 1970-02-09 1972-03-14 Monsanto Co Corrosion resistant apparatus
US3649258A (en) * 1970-03-02 1972-03-14 Allegheny Ludlum Steel Nickel alloy
DE2029266B2 (de) * 1970-06-13 1973-01-25 Verwendung einer nickel-chrom-legierung zum herstellen von metallischen elektrischen widerstandsschichten
US3842194A (en) * 1971-03-22 1974-10-15 Rca Corp Information records and recording/playback systems therefor
SU452111A3 (ru) * 1972-04-19 1974-11-30 Рка Корпорейшн (Фирма) Носитель записи
US3843399A (en) * 1972-04-19 1974-10-22 Rca Corp Metallized video disc having an insulating layer thereon

Also Published As

Publication number Publication date
FR2332120A1 (fr) 1977-06-17
US4004080A (en) 1977-01-18
AU1555976A (en) 1978-01-12
NL7608191A (nl) 1977-01-27
DE2632582A1 (de) 1977-02-10
JPS5215429A (en) 1977-02-05
AU499568B2 (en) 1979-04-26

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