JPS4889704A - - Google Patents
Info
- Publication number
- JPS4889704A JPS4889704A JP1250873A JP1250873A JPS4889704A JP S4889704 A JPS4889704 A JP S4889704A JP 1250873 A JP1250873 A JP 1250873A JP 1250873 A JP1250873 A JP 1250873A JP S4889704 A JPS4889704 A JP S4889704A
- 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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/852—Orientation in a magnetic field
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D17/00—Producing carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records; Producing record discs from master stencils
- B29D17/005—Producing optically read record carriers, e.g. optical discs
- B29D17/007—Forming the relief pattern on a support larger than the record
-
- 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
-
- 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
- G11B5/825—Disk carriers flexible discs
-
- 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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/842—Coating a support with a liquid magnetic dispersion
- G11B5/845—Coating a support with a liquid magnetic dispersion in a magnetic field
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US22307872A | 1972-02-03 | 1972-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4889704A true JPS4889704A (sv) | 1973-11-22 |
Family
ID=22834929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1250873A Pending JPS4889704A (sv) | 1972-02-03 | 1973-02-01 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS4889704A (sv) |
| CA (1) | CA1010568A (sv) |
| DE (1) | DE2304311A1 (sv) |
| FR (1) | FR2173983B3 (sv) |
| GB (1) | GB1416495A (sv) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1983002520A1 (fr) * | 1982-01-14 | 1983-07-21 | Chubachi, Ryoji | Support d'enregistrement magnetique en forme de disque |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4075672A (en) * | 1976-02-09 | 1978-02-21 | Graham Magnetics Incorporated | Magnetic recording members |
| JPS6011370B2 (ja) * | 1976-11-16 | 1985-03-25 | 富士写真フイルム株式会社 | 磁気記録媒体 |
| US4237506A (en) * | 1978-04-03 | 1980-12-02 | Graham Magnetics Inc. | Polymodal magnetic recording member |
| DE2928096A1 (de) * | 1979-07-12 | 1981-02-05 | Basf Ag | Magnetischer aufzeichnungstraeger |
| BR8008111A (pt) * | 1979-12-13 | 1981-06-30 | Dysan Corp | Processo para a fabricacao de um disco revestido flexivel,aparelhagem para o tratamento deste e dito disco de gravacao flexivel |
-
1973
- 1973-01-03 CA CA160,457A patent/CA1010568A/en not_active Expired
- 1973-01-29 GB GB447073A patent/GB1416495A/en not_active Expired
- 1973-01-30 DE DE19732304311 patent/DE2304311A1/de active Pending
- 1973-02-01 JP JP1250873A patent/JPS4889704A/ja active Pending
- 1973-02-02 FR FR7303702A patent/FR2173983B3/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1983002520A1 (fr) * | 1982-01-14 | 1983-07-21 | Chubachi, Ryoji | Support d'enregistrement magnetique en forme de disque |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2173983B3 (sv) | 1976-01-30 |
| FR2173983A1 (sv) | 1973-10-12 |
| GB1416495A (en) | 1975-12-03 |
| CA1010568A (en) | 1977-05-17 |
| DE2304311A1 (de) | 1973-08-16 |