JPS529403A - Bulge recording disc used for electronic computer and so on - Google Patents
Bulge recording disc used for electronic computer and so onInfo
- Publication number
- JPS529403A JPS529403A JP8532375A JP8532375A JPS529403A JP S529403 A JPS529403 A JP S529403A JP 8532375 A JP8532375 A JP 8532375A JP 8532375 A JP8532375 A JP 8532375A JP S529403 A JPS529403 A JP S529403A
- Authority
- JP
- Japan
- Prior art keywords
- bulge
- electronic computer
- recording disc
- disc used
- recording
- 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
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
- G11B23/005—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 flexible discs
Landscapes
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE:In order to furnish a floppy disk or a diskette which can keep the adequate torque.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8532375A JPS529403A (en) | 1975-07-14 | 1975-07-14 | Bulge recording disc used for electronic computer and so on |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8532375A JPS529403A (en) | 1975-07-14 | 1975-07-14 | Bulge recording disc used for electronic computer and so on |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS529403A true JPS529403A (en) | 1977-01-25 |
JPS5515773B2 JPS5515773B2 (en) | 1980-04-25 |
Family
ID=13855402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8532375A Granted JPS529403A (en) | 1975-07-14 | 1975-07-14 | Bulge recording disc used for electronic computer and so on |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS529403A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008234720A (en) * | 2007-03-19 | 2008-10-02 | Ricoh Co Ltd | Disk conveying method, disk cartridge, and information recording/reproducing device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6210810Y2 (en) * | 1981-01-14 | 1987-03-14 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4929804A (en) * | 1972-07-13 | 1974-03-16 | ||
JPS4940501A (en) * | 1972-08-18 | 1974-04-16 | ||
US3879757A (en) * | 1974-03-01 | 1975-04-22 | Ibm | Data storage mechanism having a flexible magnetic disk |
JPS5166818A (en) * | 1974-10-07 | 1976-06-09 | Minnesota Mining & Mfg | |
JPS51107807A (en) * | 1975-03-03 | 1976-09-24 | Information Terminals Corp | Jikideisukukirokukumitatetai |
JPS528405U (en) * | 1975-07-04 | 1977-01-21 | ||
JPS5246087U (en) * | 1975-08-12 | 1977-04-01 |
-
1975
- 1975-07-14 JP JP8532375A patent/JPS529403A/en active Granted
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4929804A (en) * | 1972-07-13 | 1974-03-16 | ||
JPS4940501A (en) * | 1972-08-18 | 1974-04-16 | ||
US3879757A (en) * | 1974-03-01 | 1975-04-22 | Ibm | Data storage mechanism having a flexible magnetic disk |
JPS5166818A (en) * | 1974-10-07 | 1976-06-09 | Minnesota Mining & Mfg | |
JPS51107807A (en) * | 1975-03-03 | 1976-09-24 | Information Terminals Corp | Jikideisukukirokukumitatetai |
JPS528405U (en) * | 1975-07-04 | 1977-01-21 | ||
JPS5246087U (en) * | 1975-08-12 | 1977-04-01 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008234720A (en) * | 2007-03-19 | 2008-10-02 | Ricoh Co Ltd | Disk conveying method, disk cartridge, and information recording/reproducing device |
Also Published As
Publication number | Publication date |
---|---|
JPS5515773B2 (en) | 1980-04-25 |
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