JPS5746132B2 - - Google Patents

Info

Publication number
JPS5746132B2
JPS5746132B2 JP52018056A JP1805677A JPS5746132B2 JP S5746132 B2 JPS5746132 B2 JP S5746132B2 JP 52018056 A JP52018056 A JP 52018056A JP 1805677 A JP1805677 A JP 1805677A JP S5746132 B2 JPS5746132 B2 JP S5746132B2
Authority
JP
Japan
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
JP52018056A
Other languages
Japanese (ja)
Other versions
JPS53103715A (en
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 filed Critical
Priority to JP1805677A priority Critical patent/JPS53103715A/en
Priority to NLAANVRAGE7801387,A priority patent/NL173104C/en
Priority to FR7803571A priority patent/FR2382742B1/en
Priority to GB5035/78A priority patent/GB1600432A/en
Priority to NLAANVRAGE7801440,A priority patent/NL173797C/en
Priority to GB5033/78A priority patent/GB1600431A/en
Priority to FR7803570A priority patent/FR2384316B1/en
Priority to CA296,450A priority patent/CA1106061A/en
Priority to CA000296451A priority patent/CA1119296A/en
Priority to DE2805322A priority patent/DE2805322C2/en
Priority to DE2805323A priority patent/DE2805323C2/en
Priority to FR7819900A priority patent/FR2384317B1/en
Publication of JPS53103715A publication Critical patent/JPS53103715A/en
Priority to US06/055,752 priority patent/US4327430A/en
Priority to US06/186,297 priority patent/US4420827A/en
Publication of JPS5746132B2 publication Critical patent/JPS5746132B2/ja
Granted legal-status Critical Current

Links

JP1805677A 1977-02-09 1977-02-23 Grooveless disc for information recording medium Granted JPS53103715A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
JP1805677A JPS53103715A (en) 1977-02-23 1977-02-23 Grooveless disc for information recording medium
NLAANVRAGE7801387,A NL173104C (en) 1977-02-09 1978-02-07 ROTARY TYPE INFORMATION SIGNAL RECORD MEDIUM AND DEVICE FOR RECORDING INFORMATION SIGNALS THEREOF.
CA296,450A CA1106061A (en) 1977-02-09 1978-02-08 Rotary recording medium with intermediate pits
GB5035/78A GB1600432A (en) 1977-02-09 1978-02-08 Information signal recording medium of rotary type and apparatus for recording information signal thereon
NLAANVRAGE7801440,A NL173797C (en) 1977-02-09 1978-02-08 INFORMATION SIGNAL RECORD MEDIUM WITH A FLAT SURFACE, AND REGISTRATOR FOR SUCH A MEDIUM.
GB5033/78A GB1600431A (en) 1977-02-09 1978-02-08 Information signal recording medium of rotary type and apparatus for recording information signal thereon
FR7803570A FR2384316B1 (en) 1977-02-09 1978-02-08 RECORDING MEDIUM FOR VIDEO AND AUDIO SIGNALS AND DEVICE FOR MAKING RECORDINGS ON SUCH MEDIUM
FR7803571A FR2382742B1 (en) 1977-02-09 1978-02-08 MEDIUM FOR RECORDING VIDEO AND AUDIO SIGNALS AND DEVICE FOR MAKING RECORDINGS THEREOF
CA000296451A CA1119296A (en) 1977-02-09 1978-02-08 Information signal recording medium of the rotary type
DE2805322A DE2805322C2 (en) 1977-02-09 1978-02-09 Rotatable information signal recording medium and recording arrangement for producing the information signal recording medium
DE2805323A DE2805323C2 (en) 1977-02-09 1978-02-09 Rotatable information signal recording medium and recording arrangement for the recording medium
FR7819900A FR2384317B1 (en) 1977-02-09 1978-07-04 DEVICE FOR RECORDING, IN PARTICULAR OF INFORMATION SIGNALS, ON ROTATING MEDIA
US06/055,752 US4327430A (en) 1977-02-09 1979-07-06 Information signal recording medium of rotary type with overlapped tracks
US06/186,297 US4420827A (en) 1977-02-09 1980-09-11 Disc reproducing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1805677A JPS53103715A (en) 1977-02-23 1977-02-23 Grooveless disc for information recording medium

Publications (2)

Publication Number Publication Date
JPS53103715A JPS53103715A (en) 1978-09-09
JPS5746132B2 true JPS5746132B2 (en) 1982-10-01

Family

ID=11961028

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1805677A Granted JPS53103715A (en) 1977-02-09 1977-02-23 Grooveless disc for information recording medium

Country Status (1)

Country Link
JP (1) JPS53103715A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6050733A (en) * 1983-08-31 1985-03-20 Sony Corp Optical recording medium and producer of master disk of said medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5398814A (en) * 1977-02-09 1978-08-29 Victor Co Of Japan Ltd Grooveless medium disc for information recording

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5398814A (en) * 1977-02-09 1978-08-29 Victor Co Of Japan Ltd Grooveless medium disc for information recording

Also Published As

Publication number Publication date
JPS53103715A (en) 1978-09-09

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