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JPS5263615A - Signal recording and reproducing disc - Google Patents

Signal recording and reproducing disc

Info

Publication number
JPS5263615A
JPS5263615A JP13874675A JP13874675A JPS5263615A JP S5263615 A JPS5263615 A JP S5263615A JP 13874675 A JP13874675 A JP 13874675A JP 13874675 A JP13874675 A JP 13874675A JP S5263615 A JPS5263615 A JP S5263615A
Authority
JP
Japan
Prior art keywords
signal recording
jacket
reproducing disc
disc
sheet disc
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.)
Granted
Application number
JP13874675A
Other languages
Japanese (ja)
Other versions
JPS5824858B2 (en
Inventor
Hiroharu Kasuya
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP50138746A priority Critical patent/JPS5824858B2/en
Publication of JPS5263615A publication Critical patent/JPS5263615A/en
Publication of JPS5824858B2 publication Critical patent/JPS5824858B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: A sheet disc is sealed in a jacket, an opening to adjmit the rotation axis if found in the center of the jacket, and a head admitting a hole extending in the radical direction of the sheet disc is formed in both the top and bottom surfaces of the jacket, so that the efficient and large amt. recording may be feasibble.
COPYRIGHT: (C)1977,JPO&Japio
JP50138746A 1975-11-20 1975-11-20 Shingouki Rokusaisei Disk Expired JPS5824858B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50138746A JPS5824858B2 (en) 1975-11-20 1975-11-20 Shingouki Rokusaisei Disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50138746A JPS5824858B2 (en) 1975-11-20 1975-11-20 Shingouki Rokusaisei Disk

Publications (2)

Publication Number Publication Date
JPS5263615A true JPS5263615A (en) 1977-05-26
JPS5824858B2 JPS5824858B2 (en) 1983-05-24

Family

ID=15229199

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50138746A Expired JPS5824858B2 (en) 1975-11-20 1975-11-20 Shingouki Rokusaisei Disk

Country Status (1)

Country Link
JP (1) JPS5824858B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57113466A (en) * 1981-09-18 1982-07-14 Sony Corp Magnetic sheet jacket
JPS58183685U (en) * 1982-05-29 1983-12-07 日立マクセル株式会社 disk cartridge
JPS58193380U (en) * 1982-06-19 1983-12-22 日立マクセル株式会社 Magnetic recording cartridge
JPS61206982A (en) * 1985-03-11 1986-09-13 Hitachi Ltd Optical disk cartridge

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4986008A (en) * 1972-06-27 1974-08-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4986008A (en) * 1972-06-27 1974-08-17

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57113466A (en) * 1981-09-18 1982-07-14 Sony Corp Magnetic sheet jacket
JPS58183685U (en) * 1982-05-29 1983-12-07 日立マクセル株式会社 disk cartridge
JPH0348782Y2 (en) * 1982-05-29 1991-10-17
JPS58193380U (en) * 1982-06-19 1983-12-22 日立マクセル株式会社 Magnetic recording cartridge
JPS61206982A (en) * 1985-03-11 1986-09-13 Hitachi Ltd Optical disk cartridge

Also Published As

Publication number Publication date
JPS5824858B2 (en) 1983-05-24

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