JPS60157715A - 磁気記録媒体 - Google Patents

磁気記録媒体

Info

Publication number
JPS60157715A
JPS60157715A JP59010998A JP1099884A JPS60157715A JP S60157715 A JPS60157715 A JP S60157715A JP 59010998 A JP59010998 A JP 59010998A JP 1099884 A JP1099884 A JP 1099884A JP S60157715 A JPS60157715 A JP S60157715A
Authority
JP
Japan
Prior art keywords
magnetic
film
grain size
layer
recording medium
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.)
Pending
Application number
JP59010998A
Other languages
English (en)
Japanese (ja)
Inventor
Haruyuki Morita
治幸 森田
Jiro Yoshinari
次郎 吉成
Kazumasa Fukuda
一正 福田
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP59010998A priority Critical patent/JPS60157715A/ja
Priority to US06/691,883 priority patent/US4636448A/en
Priority to DE19853501819 priority patent/DE3501819A1/de
Publication of JPS60157715A publication Critical patent/JPS60157715A/ja
Pending 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
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
    • G11B5/674—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having differing macroscopic or microscopic structures, e.g. differing crystalline lattices, varying atomic structures or differing roughnesses
    • 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
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
    • G11B5/672—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having different compositions in a plurality of magnetic layers, e.g. layer compositions having differing elemental components or differing proportions of elements
    • 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
    • Y10T428/12431—Foil or filament smaller than 6 mils
    • Y10T428/12438—Composite
    • 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
    • Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape
    • 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
    • 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
    • Y10T428/12562—Elastomer
    • 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
    • Y10T428/12597—Noncrystalline silica or noncrystalline plural-oxide component [e.g., glass, 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
    • 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
    • Y10T428/12931—Co-, Fe-, or Ni-base components, alternative to each other
    • 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.]
    • Y10T428/12986—Adjacent functionally defined components

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Magnetic Record Carriers (AREA)
JP59010998A 1984-01-26 1984-01-26 磁気記録媒体 Pending JPS60157715A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP59010998A JPS60157715A (ja) 1984-01-26 1984-01-26 磁気記録媒体
US06/691,883 US4636448A (en) 1984-01-26 1985-01-16 Magnetic recording medium
DE19853501819 DE3501819A1 (de) 1984-01-26 1985-01-21 Magnetaufzeichnungsmedium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59010998A JPS60157715A (ja) 1984-01-26 1984-01-26 磁気記録媒体

Publications (1)

Publication Number Publication Date
JPS60157715A true JPS60157715A (ja) 1985-08-19

Family

ID=11765801

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59010998A Pending JPS60157715A (ja) 1984-01-26 1984-01-26 磁気記録媒体

Country Status (3)

Country Link
US (1) US4636448A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS60157715A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3501819A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4990389A (en) * 1984-10-12 1991-02-05 Nippon Gakki Seizo Kabushiki Kaisha Disk for magnetic recording
JPH0640361B2 (ja) * 1985-03-07 1994-05-25 日本ビクター株式会社 垂直磁気記録再生方法
JP2522246B2 (ja) * 1986-05-06 1996-08-07 ブラザー工業株式会社 薄膜磁気記録媒体の製造方法
US4939045A (en) * 1987-03-23 1990-07-03 Hitachi, Ltd. Magnetic recording medium
EP0295028B1 (en) * 1987-06-08 1993-04-14 Esselte Meto International GmbH Magnetic devices
JP2728498B2 (ja) * 1988-05-27 1998-03-18 株式会社日立製作所 磁気記録媒体
US5582924A (en) * 1989-01-09 1996-12-10 Esselte Meto International Gmbh Magnetic materials for security applications
US5368948A (en) * 1989-01-09 1994-11-29 Esselte Meto International Produktions Magnetic materials for security applications
JPH04102223A (ja) * 1990-08-20 1992-04-03 Hitachi Ltd 磁気記録媒体及びその製造方法並びに磁気記録装置
US5324593A (en) * 1992-02-18 1994-06-28 Hmt Technology Corporation Thin film medium with layered film gradient
JPH0573881A (ja) * 1991-09-17 1993-03-26 Hitachi Ltd 磁気記録媒体およびその製造方法
US6194058B1 (en) 1998-07-31 2001-02-27 Quantegy, Inc. Multi-layer magnetic recording medium, method and system of manufacture
US7736765B2 (en) * 2004-12-28 2010-06-15 Seagate Technology Llc Granular perpendicular magnetic recording media with dual recording layer and method of fabricating same
US8110298B1 (en) 2005-03-04 2012-02-07 Seagate Technology Llc Media for high density perpendicular magnetic recording
US8119263B2 (en) * 2005-09-22 2012-02-21 Seagate Technology Llc Tuning exchange coupling in magnetic recording media
US8697260B2 (en) * 2008-07-25 2014-04-15 Seagate Technology Llc Method and manufacture process for exchange decoupled first magnetic layer
US7867637B2 (en) * 2008-11-17 2011-01-11 Seagate Technology Llc Low coupling oxide media (LCOM)
US9142240B2 (en) 2010-07-30 2015-09-22 Seagate Technology Llc Apparatus including a perpendicular magnetic recording layer having a convex magnetic anisotropy profile
US9963777B2 (en) 2012-10-08 2018-05-08 Analog Devices, Inc. Methods of forming a thin film resistor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141433A (ja) * 1982-02-16 1983-08-22 Teijin Ltd 磁気記録媒体とその製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5758226A (en) * 1980-09-22 1982-04-07 Toshiba Corp Magnetic recording medium
JPS5798135A (en) * 1980-12-11 1982-06-18 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57208631A (en) * 1981-06-19 1982-12-21 Hitachi Ltd Vertical magnetic recording medium
JPS5891A (ja) * 1981-06-25 1983-01-05 Hitachi Plant Eng & Constr Co Ltd 熱交換装置
JPS5968815A (ja) * 1982-10-12 1984-04-18 Sony Corp 磁気記録媒体
JPS60117413A (ja) * 1983-11-29 1985-06-24 Tdk Corp 磁気記録媒体の製造方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141433A (ja) * 1982-02-16 1983-08-22 Teijin Ltd 磁気記録媒体とその製造方法

Also Published As

Publication number Publication date
US4636448A (en) 1987-01-13
DE3501819C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-06-01
DE3501819A1 (de) 1985-08-01

Similar Documents

Publication Publication Date Title
JPS60157715A (ja) 磁気記録媒体
US7781079B2 (en) Perpendicular magnetic recording medium, its manufacturing method, and a magnetic storage apparatus
US8771849B2 (en) Perpendicular magnetic recording medium and magnetic recording/reproducing apparatus using the same
US20020136929A1 (en) Magnetic recording medium and method for manufacturing same
US5834085A (en) Grain isolated multilayer perpendicular recording medium
US4642270A (en) Magnetic recording medium
JP2000187836A (ja) 磁気薄膜媒体用の超薄核形成層および該層の製造方法
CN100559476C (zh) 垂直磁记录介质及制造该垂直磁记录介质的方法
JPS63187416A (ja) 面内磁気記録媒体
JP2006085742A (ja) 垂直磁気記録媒体及びその製造方法
CN104685566B (zh) 磁记录介质
JP2996442B2 (ja) 磁気薄膜記録媒体及びその製法
JP2005190538A (ja) 磁気記録媒体、およびその製造方法と装置
US6716543B2 (en) Magnetic recording medium and method for producing same
US7273667B2 (en) Longitudinal multi-layer magnetic recording medium
US7138196B2 (en) Layered thin-film media for perpendicular magnetic recording
US20070207348A1 (en) Perpendicular magnetic recording medium, method of manufacturing the same, and magnetic storage unit
JP2004213869A (ja) 垂直磁気記録媒体およびその製造方法
US20030180576A1 (en) Magnetic recording medium
US20140178714A1 (en) Method and Manufacture Process for Exchange Decoupled First Magnetic Layer
JP4491768B2 (ja) 垂直磁気記録媒体およびその製造方法
US20110171494A1 (en) Discontinuous islanded ferromagnetic recording film with perpendicular magnetic anisotropy
JPH0814889B2 (ja) 垂直磁気記録媒体
JPH0817032A (ja) 磁気記録媒体およびその製造方法
US20110104517A1 (en) Single-layered ferromagnetic recording film with perpendicular magnetic anisotropy