JPS5412807A - Portable magnetic recording disc - Google Patents

Portable magnetic recording disc

Info

Publication number
JPS5412807A
JPS5412807A JP7862077A JP7862077A JPS5412807A JP S5412807 A JPS5412807 A JP S5412807A JP 7862077 A JP7862077 A JP 7862077A JP 7862077 A JP7862077 A JP 7862077A JP S5412807 A JPS5412807 A JP S5412807A
Authority
JP
Japan
Prior art keywords
magnetic recording
recording disc
portable magnetic
disc
portable
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
JP7862077A
Other languages
Japanese (ja)
Other versions
JPS6132729B2 (en
Inventor
Shoji Sakai
Masahide Ishida
Yoshio Fujishita
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.)
Anritsu Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Anritsu Corp
Nippon Telegraph and Telephone 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 Anritsu Corp, Nippon Telegraph and Telephone Corp filed Critical Anritsu Corp
Priority to JP7862077A priority Critical patent/JPS5412807A/en
Publication of JPS5412807A publication Critical patent/JPS5412807A/en
Publication of JPS6132729B2 publication Critical patent/JPS6132729B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0014—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form
    • G11B23/0021—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form discs
    • G11B23/0028—Details
    • G11B23/0035—Details means incorporated in the disc, e.g. hub, to enable its guiding, loading or driving
    • G11B23/0042—Details means incorporated in the disc, e.g. hub, to enable its guiding, loading or driving with provision for auxiliary features
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers

Landscapes

  • Magnetic Record Carriers (AREA)
  • Prepayment Telephone Systems (AREA)

Abstract

PURPOSE:To clarify the inserting direction of a recording disc by providing a notched part or protruding part on the front or back thereof according to the sectional shape of the disc.
JP7862077A 1977-06-30 1977-06-30 Portable magnetic recording disc Granted JPS5412807A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7862077A JPS5412807A (en) 1977-06-30 1977-06-30 Portable magnetic recording disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7862077A JPS5412807A (en) 1977-06-30 1977-06-30 Portable magnetic recording disc

Publications (2)

Publication Number Publication Date
JPS5412807A true JPS5412807A (en) 1979-01-30
JPS6132729B2 JPS6132729B2 (en) 1986-07-29

Family

ID=13666922

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7862077A Granted JPS5412807A (en) 1977-06-30 1977-06-30 Portable magnetic recording disc

Country Status (1)

Country Link
JP (1) JPS5412807A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60153589A (en) * 1983-12-06 1985-08-13 マース，インコーポレーテツド Substitute currency and substitute currency handler

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4958805A (en) * 1972-06-23 1974-06-07
JPS50120604A (en) * 1974-03-07 1975-09-22
JPS5173005A (en) * 1974-12-11 1976-06-24 Dai Ichi Kogyo Seiyaku Co Ltd Haijunkatsuyuno datsurekiho

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4958805A (en) * 1972-06-23 1974-06-07
JPS50120604A (en) * 1974-03-07 1975-09-22
JPS5173005A (en) * 1974-12-11 1976-06-24 Dai Ichi Kogyo Seiyaku Co Ltd Haijunkatsuyuno datsurekiho

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60153589A (en) * 1983-12-06 1985-08-13 マース，インコーポレーテツド Substitute currency and substitute currency handler

Also Published As

Publication number Publication date
JPS6132729B2 (en) 1986-07-29

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