JPH0152814B2 - - Google Patents

Info

Publication number
JPH0152814B2
JPH0152814B2 JP56045393A JP4539381A JPH0152814B2 JP H0152814 B2 JPH0152814 B2 JP H0152814B2 JP 56045393 A JP56045393 A JP 56045393A JP 4539381 A JP4539381 A JP 4539381A JP H0152814 B2 JPH0152814 B2 JP H0152814B2
Authority
JP
Japan
Prior art keywords
film
magnetic
polyethylene terephthalate
cla
magnetic 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
Application number
JP56045393A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57162123A (en
Inventor
Shigeru Shiozaki
Tomio Adachi
Takashi Tomie
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP56045393A priority Critical patent/JPS57162123A/ja
Priority to EP82102671A priority patent/EP0061769B1/en
Priority to DE8282102671T priority patent/DE3275959D1/de
Publication of JPS57162123A publication Critical patent/JPS57162123A/ja
Priority to US06/570,435 priority patent/US4505966A/en
Publication of JPH0152814B2 publication Critical patent/JPH0152814B2/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
    • 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

Landscapes

  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Lubricants (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Magnetic Record Carriers (AREA)
JP56045393A 1981-03-30 1981-03-30 Magnetic recording medium Granted JPS57162123A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP56045393A JPS57162123A (en) 1981-03-30 1981-03-30 Magnetic recording medium
EP82102671A EP0061769B1 (en) 1981-03-30 1982-03-30 Magnetic recording medium
DE8282102671T DE3275959D1 (en) 1981-03-30 1982-03-30 Magnetic recording medium
US06/570,435 US4505966A (en) 1981-03-30 1984-01-16 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56045393A JPS57162123A (en) 1981-03-30 1981-03-30 Magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS57162123A JPS57162123A (en) 1982-10-05
JPH0152814B2 true JPH0152814B2 (enrdf_load_stackoverflow) 1989-11-10

Family

ID=12718014

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56045393A Granted JPS57162123A (en) 1981-03-30 1981-03-30 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57162123A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5969419A (ja) * 1982-10-08 1984-04-19 Toyo Soda Mfg Co Ltd フエリエライト型ゼオライトの製造方法
JPS6232048A (ja) * 1985-08-02 1987-02-12 帝人株式会社 金属薄膜磁気テープ用ポリエステルフィルム

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5240848B2 (enrdf_load_stackoverflow) * 1972-11-20 1977-10-14
JPS585452B2 (ja) * 1975-08-28 1983-01-31 富士写真フイルム株式会社 磁気記録媒体
JPS5939308B2 (ja) * 1976-01-07 1984-09-21 東レ株式会社 表面の改質されたポリエステルフイルム
JPS5341355A (en) * 1976-09-29 1978-04-14 Toray Ind Inc Biaxilialy streched polyester film
JPS5946256B2 (ja) * 1976-10-27 1984-11-12 帝人株式会社 ポリエステルの製造法
JPS5938898B2 (ja) * 1977-04-15 1984-09-19 東レ株式会社 表面の改質されたポリエステルフイルム
JPS5415979A (en) * 1977-07-06 1979-02-06 Teijin Ltd Polyester film
JPS5417981A (en) * 1977-07-11 1979-02-09 Teijin Ltd Oriented polyester film for photosensive recorder
JPS5435267A (en) * 1977-08-24 1979-03-15 Matsushita Electric Ind Co Ltd Juicer
JPS6035267B2 (ja) * 1978-01-09 1985-08-13 東レ株式会社 表面の改質されたポリエステルフイルム
JPS54123923A (en) * 1978-03-17 1979-09-26 Matsushita Electric Ind Co Ltd Magnetic recording medium

Also Published As

Publication number Publication date
JPS57162123A (en) 1982-10-05

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