IT1074193B - Supporto di registrazione magnetica - Google Patents
Supporto di registrazione magneticaInfo
- Publication number
- IT1074193B IT1074193B IT30277/76A IT3027776A IT1074193B IT 1074193 B IT1074193 B IT 1074193B IT 30277/76 A IT30277/76 A IT 30277/76A IT 3027776 A IT3027776 A IT 3027776A IT 1074193 B IT1074193 B IT 1074193B
- Authority
- IT
- Italy
- Prior art keywords
- registration support
- magnetic registration
- magnetic
- support
- registration
- 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
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
- G11B5/7369—Two or more non-magnetic underlayers, e.g. seed layers or barrier layers
-
- 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
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/733—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the addition of non-magnetic particles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/923—Physical dimension
- Y10S428/924—Composite
- Y10S428/926—Thickness of individual layer specified
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9265—Special properties
- Y10S428/928—Magnetic property
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
- Y10T428/12556—Organic component
- Y10T428/12569—Synthetic resin
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
- Y10T428/12611—Oxide-containing component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
- Y10T428/12611—Oxide-containing component
- Y10T428/12618—Plural oxides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
- Y10T428/12826—Group VIB metal-base component
- Y10T428/12847—Cr-base component
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2556755A DE2556755C2 (de) | 1975-12-17 | 1975-12-17 | Mehrschichtiger magnetischer Aufzeichnungsträger |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1074193B true IT1074193B (it) | 1985-04-17 |
Family
ID=5964595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT30277/76A IT1074193B (it) | 1975-12-17 | 1976-12-10 | Supporto di registrazione magnetica |
Country Status (8)
Country | Link |
---|---|
US (1) | US4074016A (it) |
JP (1) | JPS5274307A (it) |
CA (1) | CA1103098A (it) |
DE (1) | DE2556755C2 (it) |
FR (1) | FR2335906A1 (it) |
GB (1) | GB1530197A (it) |
IT (1) | IT1074193B (it) |
NL (1) | NL7613903A (it) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1599161A (en) * | 1976-07-15 | 1981-09-30 | Matsushita Electric Ind Co Ltd | Magnetic recording medium and method of making the same |
US4079169A (en) * | 1976-11-15 | 1978-03-14 | International Business Machines Corporation | Cobalt base alloy as protective layer for magnetic recording media |
DE2909891A1 (de) * | 1979-03-14 | 1980-09-25 | Basf Ag | Magnetischer aufzeichnungstraeger |
DE3014718A1 (de) * | 1980-04-17 | 1981-10-22 | Ibm Deutschland Gmbh, 7000 Stuttgart | Mehrschichtige magnetische duennfilmplatte mit kunstharzschicht sowie verfahren zur herstellung derselben |
JPS6210981Y2 (it) * | 1980-07-02 | 1987-03-16 | ||
JPS6240420Y2 (it) * | 1980-07-02 | 1987-10-16 | ||
JPS57164420A (en) * | 1981-03-31 | 1982-10-09 | Hitachi Maxell Ltd | Magnetic recording medium |
JPS57167123A (en) * | 1981-04-03 | 1982-10-14 | Hitachi Maxell Ltd | Magnetic recording medium |
JPS57167124A (en) * | 1981-04-03 | 1982-10-14 | Hitachi Maxell Ltd | Magnetic recording medium |
JPS61217925A (ja) * | 1985-03-23 | 1986-09-27 | Victor Co Of Japan Ltd | 磁気記録媒体 |
US4880514A (en) * | 1985-05-03 | 1989-11-14 | Akshic Memories Corporation | Method of making a thin film magnetic disk |
US4894133A (en) * | 1985-11-12 | 1990-01-16 | Virgle L. Hedgcoth | Method and apparatus making magnetic recording disk |
US5082747A (en) * | 1985-11-12 | 1992-01-21 | Hedgcoth Virgle L | Magnetic recording disk and sputtering process and apparatus for producing same |
DE3601438C1 (de) * | 1986-01-20 | 1987-04-09 | Glyco Metall Werke | Schichtverbundwerkstoff mit Diffusionssperrschicht,insbesondere fuer Gleit- und Reibelemente,sowie Verfahren zu seiner Herstellung |
JP2547651B2 (ja) * | 1989-05-22 | 1996-10-23 | 日本板硝子株式会社 | 磁気記録媒体 |
TW342136U (en) * | 1993-12-14 | 1998-10-01 | Ibm | Thin film magnetic transducer having a stable soft film for reducing asymmetry variations |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL265011A (it) * | 1960-05-19 | 1900-01-01 | ||
US3150939A (en) * | 1961-07-17 | 1964-09-29 | Ibm | High density record carrier |
GB1023150A (en) * | 1962-09-18 | 1966-03-23 | Gevaert Photo Prod Nv | Magnetic signal carrier |
US3520664A (en) * | 1966-11-10 | 1970-07-14 | Ibm | Magnetic thin-film device |
US3738818A (en) * | 1971-06-03 | 1973-06-12 | Control Data Corp | High recording density magnetic media with square b-h loop |
US3730852A (en) * | 1971-11-09 | 1973-05-01 | Basf Ag | Manufacture of abrasion-resistant magnetic recording media |
-
1975
- 1975-12-17 DE DE2556755A patent/DE2556755C2/de not_active Expired
-
1976
- 1976-10-11 FR FR7631442A patent/FR2335906A1/fr active Granted
- 1976-10-13 GB GB42464/76A patent/GB1530197A/en not_active Expired
- 1976-11-26 JP JP51141364A patent/JPS5274307A/ja active Granted
- 1976-12-09 US US05/749,209 patent/US4074016A/en not_active Expired - Lifetime
- 1976-12-10 IT IT30277/76A patent/IT1074193B/it active
- 1976-12-15 NL NL7613903A patent/NL7613903A/xx not_active Application Discontinuation
- 1976-12-17 CA CA268,094A patent/CA1103098A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2335906A1 (fr) | 1977-07-15 |
DE2556755A1 (de) | 1977-07-07 |
DE2556755C2 (de) | 1982-04-15 |
JPS5274307A (en) | 1977-06-22 |
CA1103098A (en) | 1981-06-16 |
JPS5615044B2 (it) | 1981-04-08 |
FR2335906B1 (it) | 1978-12-22 |
GB1530197A (en) | 1978-10-25 |
NL7613903A (nl) | 1977-06-21 |
US4074016A (en) | 1978-02-14 |
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