JPS5584045A - Magnetic memory substance and its manufacture - Google Patents
Magnetic memory substance and its manufactureInfo
- Publication number
- JPS5584045A JPS5584045A JP16084278A JP16084278A JPS5584045A JP S5584045 A JPS5584045 A JP S5584045A JP 16084278 A JP16084278 A JP 16084278A JP 16084278 A JP16084278 A JP 16084278A JP S5584045 A JPS5584045 A JP S5584045A
- Authority
- JP
- Japan
- Prior art keywords
- protective film
- coarseness
- ground body
- coating
- featuring
- Prior art date
- 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.)
- Granted
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
- G11B5/72—Protective coatings, e.g. anti-static or antifriction
-
- 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
-
- 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
- Y10S428/90—Magnetic feature
-
- 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
- Y10T428/12382—Defined configuration of both thickness and nonthickness surface or angle therebetween [e.g., rounded corners, etc.]
-
- 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
- Y10T428/12597—Noncrystalline silica or noncrystalline plural-oxide component [e.g., glass, etc.]
- Y10T428/12604—Film [e.g., glaze, etc.]
-
- 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.]
- Y10T428/12736—Al-base component
- Y10T428/1275—Next to Group VIII or IB 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
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12944—Ni-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
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
-
- 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
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/269—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension including synthetic resin or polymer layer or component
Landscapes
- Magnetic Record Carriers (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16084278A JPS5584045A (en) | 1978-12-19 | 1978-12-19 | Magnetic memory substance and its manufacture |
DE2948845A DE2948845C2 (de) | 1978-12-19 | 1979-12-05 | Magnetspeicherplatte und Verfahren zu deren Herstellung |
US06/102,731 US4326229A (en) | 1978-12-19 | 1979-12-12 | Magnetic record member and process for manufacturing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16084278A JPS5584045A (en) | 1978-12-19 | 1978-12-19 | Magnetic memory substance and its manufacture |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5584045A true JPS5584045A (en) | 1980-06-24 |
JPH0118500B2 JPH0118500B2 (ja) | 1989-04-06 |
Family
ID=15723578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16084278A Granted JPS5584045A (en) | 1978-12-19 | 1978-12-19 | Magnetic memory substance and its manufacture |
Country Status (3)
Country | Link |
---|---|
US (1) | US4326229A (ja) |
JP (1) | JPS5584045A (ja) |
DE (1) | DE2948845C2 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60111338A (ja) * | 1983-11-21 | 1985-06-17 | Konishiroku Photo Ind Co Ltd | 磁気記録媒体及びその製造方法 |
JPS6111929A (ja) * | 1984-06-26 | 1986-01-20 | Tdk Corp | 磁気記録媒体 |
JPH03116416A (ja) * | 1990-04-27 | 1991-05-17 | Hitachi Ltd | 磁気ディスク媒体 |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5916139A (ja) * | 1982-07-20 | 1984-01-27 | Victor Co Of Japan Ltd | 磁気記録媒体 |
DE3370710D1 (en) * | 1982-11-19 | 1987-05-07 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
JPS605423A (ja) * | 1983-06-22 | 1985-01-12 | Fujitsu Ltd | 連続磁性膜型磁気記録媒体 |
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 |
US4619872A (en) * | 1983-12-12 | 1986-10-28 | Digital Equipment Corporation | Magnetic plated media |
DE3565694D1 (en) * | 1984-02-02 | 1988-11-24 | Hitachi Metals Ltd | Process for manufacturing magnetic recording media |
US4923574A (en) * | 1984-11-13 | 1990-05-08 | Uri Cohen | Method for making a record member with a metallic antifriction overcoat |
US4663193A (en) * | 1984-12-26 | 1987-05-05 | Hitachi Metals, Ltd. | Process for manufacturing magnetic recording medium |
JPS6275932A (ja) * | 1985-09-27 | 1987-04-07 | Alps Electric Co Ltd | 磁気デイスク媒体 |
US5082747A (en) * | 1985-11-12 | 1992-01-21 | Hedgcoth Virgle L | Magnetic recording disk and sputtering process and apparatus for producing same |
EP0263512B1 (en) * | 1986-10-09 | 1994-06-01 | Asahi Glass Company Ltd. | Glass substrate for a magnetic disc and process for its production |
DE8704667U1 (de) * | 1987-03-28 | 1987-07-30 | Basf Ag, 6700 Ludwigshafen | Magnetaufzeichnungsträger zu Testzwecken, insbesondere zur Eichung von Flug-Magnetköpfen |
JPS63249933A (ja) * | 1987-04-03 | 1988-10-17 | Hitachi Ltd | 磁気デイスク媒体 |
JPH01273218A (ja) * | 1988-04-25 | 1989-11-01 | Mitsubishi Electric Corp | 磁気デイスク |
JPH02208826A (ja) * | 1989-02-08 | 1990-08-20 | Matsushita Electric Ind Co Ltd | 薄膜型磁気ディスク |
US5062021A (en) * | 1990-03-12 | 1991-10-29 | Magnetic Peripherals Inc. | Selectively textured magnetic recording media |
US5108781A (en) * | 1990-03-12 | 1992-04-28 | Magnetic Peripherals Inc. | Process for manufacturing selectively textured magnetic recording media |
EP0483363A4 (en) * | 1990-04-17 | 1993-03-17 | Mitsui Petrochemical Industries, Ltd. | Production method of magnetooptical recording medium and magnetooptical recording medium |
US5268207A (en) * | 1990-12-21 | 1993-12-07 | International Business Machines Corporation | Texturing the surface of a recording disk using particle impact |
US5768075A (en) * | 1991-12-17 | 1998-06-16 | Baradun R&D Ltd. | Disk medium w/magnetically filled features aligned in rows and columns |
WO1993012520A1 (en) * | 1991-12-17 | 1993-06-24 | Certus Magnetics | Magnetic disk medium with designed textured surfaces and controlled surface roughness and method of providing same |
US5605733A (en) * | 1992-01-22 | 1997-02-25 | Hitachi, Ltd. | Magnetic recording medium, method for its production, and system for its use |
US5506017A (en) * | 1995-06-07 | 1996-04-09 | Komag Incorporated | Method for texturing magnetic media |
US6048255A (en) * | 1995-08-22 | 2000-04-11 | Seagate Technology, Inc. | Pulsed laser surface treatments for magnetic recording media |
US6335080B1 (en) * | 1999-01-04 | 2002-01-01 | Seagate Technology Llc | Magnetic disk media and disk drives utilizing polymeric disk substrates |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3055770A (en) * | 1960-12-23 | 1962-09-25 | Ibm | Thin magnetic films |
US3466156A (en) * | 1966-12-01 | 1969-09-09 | Ncr Co | Magnetic record members |
US3516860A (en) * | 1967-08-31 | 1970-06-23 | Singer Co | Method of forming a magnetic recording medium |
US4171399A (en) * | 1971-09-02 | 1979-10-16 | Corning Glass Works | Magnetic recording and storage device having high abrasion resistance and method |
US4124736A (en) * | 1974-10-29 | 1978-11-07 | Poly-Disc Systems, Inc. | Surface protected magnetic recording members |
DE2459541C3 (de) * | 1974-12-17 | 1978-08-31 | Basf Ag, 6700 Ludwigshafen | Verfahren zum Herstellen von Magnetschichten von Magnetspeicherplatten |
US4154875A (en) * | 1975-07-01 | 1979-05-15 | Nippon Electric Co., Ltd. | Process for manufacturing a magnetic record member |
JPS5255603A (en) * | 1975-10-31 | 1977-05-07 | Nec Corp | Magnetic memory element and production of same |
US4188434A (en) * | 1978-05-15 | 1980-02-12 | Storage Technology Corporation | Lubricant for a magnetic member |
-
1978
- 1978-12-19 JP JP16084278A patent/JPS5584045A/ja active Granted
-
1979
- 1979-12-05 DE DE2948845A patent/DE2948845C2/de not_active Expired
- 1979-12-12 US US06/102,731 patent/US4326229A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60111338A (ja) * | 1983-11-21 | 1985-06-17 | Konishiroku Photo Ind Co Ltd | 磁気記録媒体及びその製造方法 |
JPS6111929A (ja) * | 1984-06-26 | 1986-01-20 | Tdk Corp | 磁気記録媒体 |
JPH03116416A (ja) * | 1990-04-27 | 1991-05-17 | Hitachi Ltd | 磁気ディスク媒体 |
JPH05765B2 (ja) * | 1990-04-27 | 1993-01-06 | Hitachi Ltd |
Also Published As
Publication number | Publication date |
---|---|
DE2948845A1 (de) | 1980-07-10 |
JPH0118500B2 (ja) | 1989-04-06 |
US4326229A (en) | 1982-04-20 |
DE2948845C2 (de) | 1982-12-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5584045A (en) | Magnetic memory substance and its manufacture | |
JPS563442A (en) | Optical memory disk and its manufacture | |
JPS55146453A (en) | Electrostatic recording body | |
JPS5622219A (en) | Manufacture of magnetic recording medium | |
JPS5584039A (en) | Magnetic recording medium | |
JPS54162508A (en) | Magnetic memory medium | |
JPS5584040A (en) | Magnetic recording medium | |
JPS5525822A (en) | Magnetic memory substance | |
JPS5525821A (en) | Magnetic memory substance | |
EP0381210A3 (en) | Optical recording media and process for preparing same | |
JPS52135704A (en) | Substrate for magnetic recording medium and preparation thereof | |
JPS5634138A (en) | Magnetic recording medium | |
JPS55150134A (en) | Magnetic disk | |
JPS5584038A (en) | Magnetic recording medium | |
JPS5658134A (en) | Magnetic recording medium | |
JPS5584036A (en) | Manufacture of magnetic recording medium | |
JPS54122192A (en) | Production of humidity detecting element | |
JPS5577038A (en) | Production of magnetic disc medium | |
JPS5512513A (en) | Magnetic head | |
JPS5584035A (en) | Manufacture of magnetic recording medium | |
JPS5661037A (en) | Magnetic recording medium | |
JPS5473006A (en) | Production of magnetic disc | |
JPS577842A (en) | Manufacture of waterproof glass fiber | |
JPS5668924A (en) | Magnetic recording medium | |
JPS5794931A (en) | Magnetic storage body |