CA998174A - Video discs with gold or platinum conductive coating - Google Patents

Video discs with gold or platinum conductive coating

Info

Publication number
CA998174A
CA998174A CA168,607A CA168607A CA998174A CA 998174 A CA998174 A CA 998174A CA 168607 A CA168607 A CA 168607A CA 998174 A CA998174 A CA 998174A
Authority
CA
Canada
Prior art keywords
gold
conductive coating
video discs
platinum conductive
platinum
Prior art date
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
CA168,607A
Other languages
English (en)
Other versions
CA168607S (en
Inventor
Robert M. Mehalso
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
Application granted granted Critical
Publication of CA998174A publication Critical patent/CA998174A/en
Expired legal-status Critical Current

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
CA168,607A 1972-04-19 1973-04-12 Video discs with gold or platinum conductive coating Expired CA998174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24565372A 1972-04-19 1972-04-19

Publications (1)

Publication Number Publication Date
CA998174A true CA998174A (en) 1976-10-05

Family

ID=22927544

Family Applications (1)

Application Number Title Priority Date Filing Date
CA168,607A Expired CA998174A (en) 1972-04-19 1973-04-12 Video discs with gold or platinum conductive coating

Country Status (10)

Country Link
JP (1) JPS533923B2 (fr)
AU (1) AU469282B2 (fr)
CA (1) CA998174A (fr)
DE (1) DE2317849A1 (fr)
ES (1) ES413611A1 (fr)
FR (1) FR2180774B1 (fr)
GB (1) GB1417047A (fr)
IT (1) IT980812B (fr)
NL (1) NL7305460A (fr)
SU (1) SU452111A3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4826382U (fr) * 1971-08-11 1973-03-29
US4004080A (en) * 1975-07-25 1977-01-18 Rca Corporation Metal coating for video discs
JP4648991B1 (ja) * 2010-08-02 2011-03-09 株式会社ホウショウＥｇ 雨水浸透坑掘削装置

Also Published As

Publication number Publication date
GB1417047A (en) 1975-12-10
FR2180774A1 (fr) 1973-11-30
AU469282B2 (en) 1976-02-12
SU452111A3 (ru) 1974-11-30
DE2317849A1 (de) 1973-10-31
FR2180774B1 (fr) 1977-02-04
IT980812B (it) 1974-10-10
NL7305460A (fr) 1973-10-23
AU5464673A (en) 1974-10-24
ES413611A1 (es) 1975-12-16
JPS533923B2 (fr) 1978-02-13
JPS4928303A (fr) 1974-03-13

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