IT961500B - MAGNE TIC LAYER STORAGE MATERIAL - Google Patents
MAGNE TIC LAYER STORAGE MATERIALInfo
- Publication number
- IT961500B IT961500B IT5166272A IT5166272A IT961500B IT 961500 B IT961500 B IT 961500B IT 5166272 A IT5166272 A IT 5166272A IT 5166272 A IT5166272 A IT 5166272A IT 961500 B IT961500 B IT 961500B
- Authority
- IT
- Italy
- Prior art keywords
- storage material
- layer storage
- tic layer
- magne tic
- magne
- Prior art date
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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/702—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent
- G11B5/7028—Additives, e.g. crosslinking agents
-
- 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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/702—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent
- G11B5/7021—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent containing a polyurethane or a polyisocyanate
- G11B5/7022—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent containing a polyurethane or a polyisocyanate containing mixtures of polyurethanes or polyisocyanates with other polymers
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712136795 DE2136795C3 (en) | 1971-07-23 | 1971-07-23 | Process for the production of magnetizable storage media |
Publications (1)
Publication Number | Publication Date |
---|---|
IT961500B true IT961500B (en) | 1973-12-10 |
Family
ID=5814549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT5166272A IT961500B (en) | 1971-07-23 | 1972-07-21 | MAGNE TIC LAYER STORAGE MATERIAL |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS5528130B1 (en) |
BE (1) | BE785308A (en) |
CA (1) | CA977222A (en) |
DE (1) | DE2136795C3 (en) |
FR (1) | FR2147113B1 (en) |
GB (1) | GB1365647A (en) |
IT (1) | IT961500B (en) |
NL (1) | NL173450C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050181089A1 (en) * | 2002-04-15 | 2005-08-18 | Nagase & Co. Ltd | Stamper original and its manufacturing method, stamper and its manufacturing method, and optical disk |
-
1971
- 1971-07-23 DE DE19712136795 patent/DE2136795C3/en not_active Expired
-
1972
- 1972-05-19 CA CA142,547A patent/CA977222A/en not_active Expired
- 1972-06-23 BE BE785308A patent/BE785308A/en not_active IP Right Cessation
- 1972-06-29 NL NL7209028A patent/NL173450C/en not_active IP Right Cessation
- 1972-07-20 GB GB3402472A patent/GB1365647A/en not_active Expired
- 1972-07-21 IT IT5166272A patent/IT961500B/en active
- 1972-07-21 FR FR7226435A patent/FR2147113B1/fr not_active Expired
- 1972-07-22 JP JP7307272A patent/JPS5528130B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS5528130B1 (en) | 1980-07-25 |
FR2147113B1 (en) | 1975-10-03 |
DE2136795C3 (en) | 1978-04-27 |
BE785308A (en) | 1972-12-27 |
DE2136795A1 (en) | 1973-03-15 |
NL173450B (en) | 1983-08-16 |
NL7209028A (en) | 1972-12-27 |
NL173450C (en) | 1984-01-16 |
GB1365647A (en) | 1974-09-04 |
CA977222A (en) | 1975-11-04 |
DE2136795B2 (en) | 1977-08-25 |
FR2147113A1 (en) | 1973-03-09 |
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