JPS4960704A - - Google Patents
Info
- Publication number
- JPS4960704A JPS4960704A JP9563673A JP9563673A JPS4960704A JP S4960704 A JPS4960704 A JP S4960704A JP 9563673 A JP9563673 A JP 9563673A JP 9563673 A JP9563673 A JP 9563673A JP S4960704 A JPS4960704 A JP S4960704A
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/1871—Shaping or contouring of the transducing or guiding surface
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- 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
- G11B17/02—Details
- G11B17/021—Selecting or spacing of record carriers for introducing the heads
-
- 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
- G11B5/41—Cleaning of heads
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28381372A | 1972-08-25 | 1972-08-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4960704A true JPS4960704A (en:Method) | 1974-06-12 |
Family
ID=23087665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9563673A Pending JPS4960704A (en:Method) | 1972-08-25 | 1973-08-25 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS4960704A (en:Method) |
| DE (1) | DE2342890A1 (en:Method) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US4365257A (en) * | 1981-03-05 | 1982-12-21 | Minnesota Mining And Manufacturing Company | Stretched-film optical recording disc |
| US4625384A (en) * | 1982-04-19 | 1986-12-02 | Minnesota Mining And Manufacturing Company | Method of making a recording disc |
| US4573097A (en) * | 1982-10-13 | 1986-02-25 | Minnesota Mining And Manufacturing Company | Stretched surface recording disk and method of manufacture |
| US4670072A (en) * | 1982-10-13 | 1987-06-02 | Minnesota Mining And Manufacturing Company | Method of making a stretched surface recording disk |
| US4963209A (en) * | 1984-12-21 | 1990-10-16 | Minnesota Mining And Manufacturing Company | Method for making stretched surface recording disk |
| US4623570A (en) * | 1985-03-14 | 1986-11-18 | Minnesota Mining And Manufacturing Company | Stable stretched surface recording medium |
| USRE33187E (en) * | 1985-03-14 | 1990-03-27 | Minnesota Mining And Manufacturing Company | Stable stretched surface recording medium |
| US4729805A (en) * | 1985-03-14 | 1988-03-08 | Minnesota Mining And Manufacturing Company | Recording medium annealing process |
-
1973
- 1973-08-24 DE DE19732342890 patent/DE2342890A1/de active Pending
- 1973-08-25 JP JP9563673A patent/JPS4960704A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2342890A1 (de) | 1974-03-07 |