IT1061815B - Vedeodisco metallizzato avente su di esso uno strato isolante - Google Patents

Vedeodisco metallizzato avente su di esso uno strato isolante

Info

Publication number
IT1061815B
IT1061815B IT2477376A IT2477376A IT1061815B IT 1061815 B IT1061815 B IT 1061815B IT 2477376 A IT2477376 A IT 2477376A IT 2477376 A IT2477376 A IT 2477376A IT 1061815 B IT1061815 B IT 1061815B
Authority
IT
Italy
Prior art keywords
insulating layer
saw disc
metallic saw
metallic
disc
Prior art date
Application number
IT2477376A
Other languages
English (en)
Italian (it)
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 IT1061815B publication Critical patent/IT1061815B/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
    • G11B9/067—Dielectric layers; Processes for providing electrical conductivity to them
    • 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]
    • Y10T428/31652—Of asbestos
    • Y10T428/31663—As siloxane, silicone or silane
IT2477376A 1975-08-21 1976-06-25 Vedeodisco metallizzato avente su di esso uno strato isolante IT1061815B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/606,655 US4206256A (en) 1975-08-21 1975-08-21 Metallized video disc having an insulating layer thereon

Publications (1)

Publication Number Publication Date
IT1061815B true IT1061815B (it) 1983-04-30

Family

ID=24428903

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2477376A IT1061815B (it) 1975-08-21 1976-06-25 Vedeodisco metallizzato avente su di esso uno strato isolante

Country Status (5)

Country Link
US (1) US4206256A (show.php)
JP (1) JPS5226820A (show.php)
DE (1) DE2636501A1 (show.php)
FR (1) FR2321743A1 (show.php)
IT (1) IT1061815B (show.php)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4307156A (en) * 1978-06-13 1981-12-22 Nippon Electric Co., Ltd. Magnetic record member
IT1123480B (it) * 1978-08-29 1986-04-30 Rca Corp Lubrificanti per videodischi
US4216970A (en) * 1979-03-05 1980-08-12 Rca Corporation Video disc lubricants
JPS6099965A (ja) * 1983-11-02 1985-06-03 株式会社日立製作所 吸収式冷温水機
US4596733A (en) * 1983-12-30 1986-06-24 International Business Machines Corporation Electroerosion recording material with polyorganosiloxane overlayer
JP2002536778A (ja) 1999-02-12 2002-10-29 ゼネラル・エレクトリック・カンパニイ データ記憶媒体
US7179551B2 (en) 1999-02-12 2007-02-20 General Electric Company Poly(arylene ether) data storage media

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3843399A (en) * 1972-04-19 1974-10-22 Rca Corp Metallized video disc having an insulating layer thereon
US3833408A (en) * 1972-04-19 1974-09-03 Rca Corp Video discs having a methyl alkyl silicone coating
US3882214A (en) * 1973-02-09 1975-05-06 Rca Corp Trapezoidal smooth grooves for video disc
US3901994A (en) * 1974-02-04 1975-08-26 Rca Corp Metallized video disc having a dielectric coating thereon
US4018945A (en) * 1975-06-19 1977-04-19 Rca Corporation Method of making a metallized video disc having an insulating layer thereon
US3982066A (en) * 1975-07-25 1976-09-21 Rca Corporation Metal coating for video discs
US4004080A (en) * 1975-07-25 1977-01-18 Rca Corporation Metal coating for video discs
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

Also Published As

Publication number Publication date
FR2321743B1 (show.php) 1982-04-16
DE2636501A1 (de) 1977-02-24
US4206256A (en) 1980-06-03
FR2321743A1 (fr) 1977-03-18
JPS5718251B2 (show.php) 1982-04-15
JPS5226820A (en) 1977-02-28

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