JPS5584045A - Magnetic memory substance and its manufacture - Google Patents

Magnetic memory substance and its manufacture

Info

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
Application number
JP16084278A
Other languages
English (en)
Other versions
JPH0118500B2 (ja
Inventor
Masahiro Yanagisawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP16084278A priority Critical patent/JPS5584045A/ja
Priority to DE2948845A priority patent/DE2948845C2/de
Priority to US06/102,731 priority patent/US4326229A/en
Publication of JPS5584045A publication Critical patent/JPS5584045A/ja
Publication of JPH0118500B2 publication Critical patent/JPH0118500B2/ja
Granted legal-status Critical Current

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)
JP16084278A 1978-12-19 1978-12-19 Magnetic memory substance and its manufacture Granted JPS5584045A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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