JPH0445889B2 - - Google Patents

Info

Publication number
JPH0445889B2
JPH0445889B2 JP56049884A JP4988481A JPH0445889B2 JP H0445889 B2 JPH0445889 B2 JP H0445889B2 JP 56049884 A JP56049884 A JP 56049884A JP 4988481 A JP4988481 A JP 4988481A JP H0445889 B2 JPH0445889 B2 JP H0445889B2
Authority
JP
Japan
Prior art keywords
recording medium
magnetic recording
magnetic
fatty acid
layer
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 - Lifetime
Application number
JP56049884A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57164432A (en
Inventor
Yoshihiro Arai
Akira Nahara
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP56049884A priority Critical patent/JPS57164432A/ja
Priority to DE3212202A priority patent/DE3212202C2/de
Publication of JPS57164432A publication Critical patent/JPS57164432A/ja
Priority to US06/563,014 priority patent/US4521482A/en
Publication of JPH0445889B2 publication Critical patent/JPH0445889B2/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
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • 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
    • 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
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31507—Of polycarbonate
    • 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]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31605—Next to free metal
    • 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]
    • Y10T428/31678—Of metal

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Magnetic Record Carriers (AREA)
JP56049884A 1981-04-02 1981-04-02 Magnetic recording medium Granted JPS57164432A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP56049884A JPS57164432A (en) 1981-04-02 1981-04-02 Magnetic recording medium
DE3212202A DE3212202C2 (de) 1981-04-02 1982-04-01 Magnetisches Aufzeichnungsmedium
US06/563,014 US4521482A (en) 1981-04-02 1983-12-19 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56049884A JPS57164432A (en) 1981-04-02 1981-04-02 Magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS57164432A JPS57164432A (en) 1982-10-09
JPH0445889B2 true JPH0445889B2 (en]) 1992-07-28

Family

ID=12843458

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56049884A Granted JPS57164432A (en) 1981-04-02 1981-04-02 Magnetic recording medium

Country Status (3)

Country Link
US (1) US4521482A (en])
JP (1) JPS57164432A (en])
DE (1) DE3212202C2 (en])

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3321906A1 (de) * 1982-06-18 1983-12-22 TDK Corporation, Tokyo Magnetisches pulver mit verbesserter dispergierbarkeit
JPS58223437A (ja) * 1982-06-18 1983-12-26 Tdk Corp 分散性を改良した無機粉末
JPS5987622A (ja) * 1982-11-09 1984-05-21 Ulvac Corp 磁気記録体並にその製造法
JPS5996137A (ja) * 1982-11-25 1984-06-02 Shin Etsu Chem Co Ltd 塩化ビニル系樹脂複合製品の製造方法
JPS59154643A (ja) * 1983-02-24 1984-09-03 Fuji Photo Film Co Ltd 磁気記録媒体
JPS59160828A (ja) * 1983-03-01 1984-09-11 Fuji Photo Film Co Ltd 磁気記録媒体
JPS59171029A (ja) * 1983-03-18 1984-09-27 Fuji Photo Film Co Ltd 磁気記録媒体
JPH0766528B2 (ja) * 1983-03-18 1995-07-19 富士写真フイルム株式会社 磁気記録媒体
JPS59175019A (ja) * 1983-03-23 1984-10-03 Matsushita Electric Ind Co Ltd 磁気記録媒体及びその製造方法
JPS59175031A (ja) * 1983-03-24 1984-10-03 Matsushita Electric Ind Co Ltd 磁気記録媒体の製造方法
JPS6069824A (ja) * 1983-09-26 1985-04-20 Fuji Photo Film Co Ltd 磁気記録媒体
JPS6089817A (ja) * 1983-10-20 1985-05-20 Hitachi Maxell Ltd 磁気記録媒体
JPH0766507B2 (ja) * 1984-02-16 1995-07-19 コニカ株式会社 磁気記録媒体
US4693927A (en) * 1984-03-19 1987-09-15 Fuji Photo Film Company Limited Magnetic recording medium and process for producing the same
JPH0610856B2 (ja) * 1984-08-04 1994-02-09 ティーディーケイ株式会社 磁気記録媒体
JPS6150236A (ja) * 1984-08-18 1986-03-12 Canon Inc 磁気記録媒体の製造方法
JPS6168725A (ja) * 1984-09-10 1986-04-09 Shin Etsu Chem Co Ltd 磁気記録媒体およびその製造方法
EP0182367B1 (en) * 1984-11-20 1990-04-18 Hitachi Maxell Ltd. Magnetic recording medium and production of the same
US4803130A (en) * 1984-12-21 1989-02-07 Minnesota Mining And Manufacturing Company Reactive sputtering process for recording media
US4729924A (en) * 1984-12-21 1988-03-08 Minnesota Mining And Manufacturing Company Metallic thin film magnetic recording medium having a hard protective layer
JPH0610871B2 (ja) * 1984-12-25 1994-02-09 ティーディーケイ株式会社 磁気記録媒体
US4824724A (en) * 1985-06-05 1989-04-25 Tdk Corporation Magnetic recording medium
JPS61289530A (ja) * 1985-06-17 1986-12-19 Hitachi Ltd 磁気記録媒体
US4714631A (en) * 1985-08-28 1987-12-22 W. H. Brady Co. Rapidly removable undercoating for vacuum deposition of patterned layers onto substrates
US5677051A (en) * 1993-11-30 1997-10-14 Tdk Corporation Magnetic recording medium having a specified plasma polymerized hydrogen containing carbon film and lubricant
JP6211913B2 (ja) * 2013-12-11 2017-10-11 株式会社ジェイエスピー ポリオレフィン系樹脂発泡粒子

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466156A (en) * 1966-12-01 1969-09-09 Ncr Co Magnetic record members
US4171388A (en) * 1971-09-02 1979-10-16 Corning Glass Works Magnetic recording and storage device having high abrasion resistance and method
JPS5320204B2 (en]) * 1974-05-20 1978-06-26
GB1599161A (en) * 1976-07-15 1981-09-30 Matsushita Electric Ind Co Ltd Magnetic recording medium and method of making the same
JPS5525821A (en) * 1978-08-08 1980-02-23 Nec Corp Magnetic memory substance
DE3114248C2 (de) * 1980-04-10 1984-12-06 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa Magnetischer Aufzeichnungsträger mit einer Schutzschicht
JPS56153534A (en) * 1980-04-24 1981-11-27 Fuji Photo Film Co Ltd Magnetic recording medium

Also Published As

Publication number Publication date
JPS57164432A (en) 1982-10-09
DE3212202A1 (de) 1982-10-28
US4521482A (en) 1985-06-04
DE3212202C2 (de) 1995-11-30

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