JPS4842489B1 - - Google Patents
Info
- Publication number
- JPS4842489B1 JPS4842489B1 JP45018398A JP1839870A JPS4842489B1 JP S4842489 B1 JPS4842489 B1 JP S4842489B1 JP 45018398 A JP45018398 A JP 45018398A JP 1839870 A JP1839870 A JP 1839870A JP S4842489 B1 JPS4842489 B1 JP S4842489B1
- 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.)
- Pending
Links
Classifications
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US81438469A | 1969-04-08 | 1969-04-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4842489B1 true JPS4842489B1 (ja) | 1973-12-13 |
Family
ID=25214908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP45018398A Pending JPS4842489B1 (ja) | 1969-04-08 | 1970-03-05 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3646533A (ja) |
| JP (1) | JPS4842489B1 (ja) |
| BE (1) | BE748680A (ja) |
| CA (1) | CA925613A (ja) |
| DE (1) | DE2016178C3 (ja) |
| FR (1) | FR2043026A5 (ja) |
| GB (1) | GB1257281A (ja) |
| NL (1) | NL7005043A (ja) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3964101A (en) * | 1973-06-15 | 1976-06-15 | Tetsuo Hino | Magnetic recording disc |
| EP0047330B1 (de) * | 1980-09-06 | 1984-06-13 | Ibm Deutschland Gmbh | Magnetplatten-Trägerkern aus faserverstärktem Kunststoff |
| DE3176238D1 (en) * | 1981-07-23 | 1987-07-09 | Ibm Deutschland | Magnetic-disc substrate with plastics core |
| US4558383A (en) * | 1983-06-30 | 1985-12-10 | International Business Machines Corporation | Information storage disk transducer position control system using a prerecorded servo pattern requiring no alignment with the storage disk |
| JPS6022733A (ja) * | 1983-07-19 | 1985-02-05 | Hitachi Metals Ltd | 磁気デイスク基板 |
| US4680211A (en) * | 1985-07-25 | 1987-07-14 | The Dow Chemical Company | Recording disks |
| JP3935976B2 (ja) * | 1995-02-08 | 2007-06-27 | ヒューレット・パッカード・カンパニー | 半導体層構造および大容量メモリ装置の記録媒体 |
| US6055140A (en) * | 1997-07-25 | 2000-04-25 | Seagate Technology, Inc. | Rigid disc plastic substrate with high stiffness insert |
| US7227717B1 (en) * | 2001-06-18 | 2007-06-05 | Seagate Technology Llc | Asymmetric disk surface properties in one head disk drives |
| FR2845512A1 (fr) * | 2002-10-03 | 2004-04-09 | Commissariat Energie Atomique | Dispositif d'enregistrement de donnees comportant un support de memoire en forme de membrane |
| FR2845513B1 (fr) * | 2002-10-03 | 2006-08-11 | Commissariat Energie Atomique | Dispositif d'enregistrement de donnees comportant un support de memoire en forme de membrane |
-
1969
- 1969-04-08 US US814384A patent/US3646533A/en not_active Expired - Lifetime
-
1970
- 1970-02-23 CA CA075503A patent/CA925613A/en not_active Expired
- 1970-02-24 GB GB1257281D patent/GB1257281A/en not_active Expired
- 1970-03-05 JP JP45018398A patent/JPS4842489B1/ja active Pending
- 1970-04-04 DE DE2016178A patent/DE2016178C3/de not_active Expired
- 1970-04-07 FR FR7012520A patent/FR2043026A5/fr not_active Expired
- 1970-04-08 BE BE748680D patent/BE748680A/xx not_active IP Right Cessation
- 1970-04-08 NL NL7005043A patent/NL7005043A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3646533A (en) | 1972-02-29 |
| BE748680A (fr) | 1970-09-06 |
| DE2016178A1 (de) | 1970-11-12 |
| DE2016178C3 (de) | 1974-07-25 |
| NL7005043A (ja) | 1970-10-12 |
| CA925613A (en) | 1973-05-01 |
| DE2016178B2 (de) | 1973-12-20 |
| FR2043026A5 (ja) | 1971-02-12 |
| GB1257281A (ja) | 1971-12-15 |