DE69422546D1 - Magnetisches Aufzeichnungsmedium - Google Patents

Magnetisches Aufzeichnungsmedium

Info

Publication number
DE69422546D1
DE69422546D1 DE69422546T DE69422546T DE69422546D1 DE 69422546 D1 DE69422546 D1 DE 69422546D1 DE 69422546 T DE69422546 T DE 69422546T DE 69422546 T DE69422546 T DE 69422546T DE 69422546 D1 DE69422546 D1 DE 69422546D1
Authority
DE
Germany
Prior art keywords
recording medium
magnetic recording
magnetic
medium
recording
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.)
Expired - Fee Related
Application number
DE69422546T
Other languages
English (en)
Other versions
DE69422546T2 (de
Inventor
Hiroshi Seki
Kenji Kuwahara
Hideyuki Ueda
Kiyosi Takahasi
Masaru Odagiri
Mikio Murai
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69422546D1 publication Critical patent/DE69422546D1/de
Publication of DE69422546T2 publication Critical patent/DE69422546T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B5/725—Protective coatings, e.g. anti-static or antifriction containing a lubricant, e.g. organic compounds
    • G11B5/7253—Fluorocarbon lubricant
    • 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
    • G11B5/726—Two or more protective coatings
    • G11B5/7262—Inorganic protective coating
    • G11B5/7264—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon
    • G11B5/7266—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon comprising a lubricant over the inorganic carbon coating
    • 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
    • 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
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less
    • 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
    • Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31652—Of asbestos
    • Y10T428/31663—As siloxane, silicone or silane
DE1994622546 1993-04-13 1994-04-13 Magnetisches Aufzeichnungsmedium Expired - Fee Related DE69422546T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP8591993 1993-04-13
JP25677093 1993-10-14
JP6837094A JPH07161034A (ja) 1993-04-13 1994-04-06 磁気記録媒体

Publications (2)

Publication Number Publication Date
DE69422546D1 true DE69422546D1 (de) 2000-02-17
DE69422546T2 DE69422546T2 (de) 2000-09-14

Family

ID=27299724

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1994622546 Expired - Fee Related DE69422546T2 (de) 1993-04-13 1994-04-13 Magnetisches Aufzeichnungsmedium

Country Status (4)

Country Link
US (1) US5494742A (de)
EP (1) EP0624869B1 (de)
JP (1) JPH07161034A (de)
DE (1) DE69422546T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08124149A (ja) * 1994-10-25 1996-05-17 Matsushita Electric Ind Co Ltd 磁気記録媒体
US5942317A (en) * 1997-01-31 1999-08-24 International Business Machines Corporation Hydrogenated carbon thin films
US6582823B1 (en) 1999-04-30 2003-06-24 North Carolina State University Wear-resistant polymeric articles and methods of making the same
US6696157B1 (en) * 2000-03-05 2004-02-24 3M Innovative Properties Company Diamond-like glass thin films
US7106939B2 (en) * 2001-09-19 2006-09-12 3M Innovative Properties Company Optical and optoelectronic articles
JP4613530B2 (ja) * 2004-06-25 2011-01-19 Ｎｏｋクリューバー株式会社 潤滑グリース組成物
WO2006030632A1 (ja) * 2004-09-14 2006-03-23 Nok Kluber Co., Ltd. パーフルオロポリエーテル油組成物
US8043976B2 (en) * 2008-03-24 2011-10-25 Air Products And Chemicals, Inc. Adhesion to copper and copper electromigration resistance
TWI432595B (zh) * 2010-04-30 2014-04-01 Winsky Technology Ltd 基板塗層及其形成方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165232A (en) * 1978-09-15 1979-08-21 Basf Aktiengesellschaft Manufacture of ferromagnetic metal particles essentially consisting of iron
JPS60237640A (ja) * 1984-05-10 1985-11-26 Hitachi Maxell Ltd 磁気記録媒体の製造方法
US4761334A (en) * 1984-09-21 1988-08-02 Kabushiki Kaisha Toshiba Magnetic recording medium
EP0179382B1 (de) * 1984-10-22 1992-03-04 Hitachi, Ltd. Magnetischer Aufzeichnungsträger
JPS61289530A (ja) * 1985-06-17 1986-12-19 Hitachi Ltd 磁気記録媒体
JPS62139871A (ja) * 1985-12-13 1987-06-23 Nec Corp 硬質非晶質炭素膜
US4880687A (en) * 1986-05-09 1989-11-14 Tdk Corporation Magnetic recording medium
US4840844A (en) * 1986-06-02 1989-06-20 Hitachi, Ltd. Magnetic recording medium
US4900622A (en) * 1986-09-18 1990-02-13 Tdk Corporation Magnetic recording medium
US4840843A (en) * 1986-10-17 1989-06-20 Fuji Photo Film Co., Ltd. Magnetic recording medium
JPS63102018A (ja) * 1986-10-17 1988-05-06 Fuji Photo Film Co Ltd 磁気記録媒体
JPS63217518A (ja) * 1987-03-05 1988-09-09 Fuji Photo Film Co Ltd 磁気記録媒体
US5068152A (en) * 1987-11-26 1991-11-26 Hitachi Maxell, Ltd. Magnetic recording medium
US5275850A (en) * 1988-04-20 1994-01-04 Hitachi, Ltd. Process for producing a magnetic disk having a metal containing hard carbon coating by plasma chemical vapor deposition under a negative self bias
JPH02118916A (ja) * 1988-10-26 1990-05-07 Mitsubishi Electric Corp 磁気記録媒体
JP2874298B2 (ja) * 1990-07-24 1999-03-24 日本板硝子株式会社 磁気記録媒体およびその製造方法

Also Published As

Publication number Publication date
EP0624869B1 (de) 2000-01-12
US5494742A (en) 1996-02-27
DE69422546T2 (de) 2000-09-14
EP0624869A2 (de) 1994-11-17
JPH07161034A (ja) 1995-06-23
EP0624869A3 (de) 1994-12-21

Similar Documents

Publication Publication Date Title
DE69328697T2 (de) Magnetisches Aufzeichnungsmedium
DE69402216D1 (de) Magnetisches Aufzeichnungsmedium
DE69325331T2 (de) Magnetisches Aufzeichnungsmdedium
DE69326441T2 (de) Magnetisches aufzeichnungsmedium
DE69506672D1 (de) Magnetisches Aufzeichnungsmedium
DE69503282T2 (de) Magnetisches Aufzeichnungsmedium
DE69510017T2 (de) Magnetisches Aufzeichnungsmedium
DE69512473D1 (de) Magnetisches Aufzeichnungsmedium
DE69422546D1 (de) Magnetisches Aufzeichnungsmedium
DE69423336T2 (de) Magnetisches Aufzeichnungsmedium
DE69509004T2 (de) Magnetischer Aufzeichnungsmedium
DE69530463D1 (de) Magnetisches aufzeichnungsmedium
DE69427011D1 (de) Magnetisches aufzeichnungsmedium
DE69421788D1 (de) Magnetisches aufzeichnungsmedium
DE69313904D1 (de) Magnetisches Aufzeichnungsmedium
DE69317158T2 (de) Magnetisches Aufzeichnungsmedium
DE69520815T2 (de) Magnetisches Aufzeichnungsmedium
DE69414740D1 (de) Magnetischer Aufzeichnungsmedium
DE69411681T2 (de) Magnetisches Aufzeichnungsmedium
DE69311834D1 (de) Magnetisches Aufzeichnungsmedium
DE69407657D1 (de) Magnetisches Aufzeichnungsmedium
DE69510878D1 (de) Magnetisches Aufzeichnungsmedium

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee