JPS57162123A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57162123A
JPS57162123A JP56045393A JP4539381A JPS57162123A JP S57162123 A JPS57162123 A JP S57162123A JP 56045393 A JP56045393 A JP 56045393A JP 4539381 A JP4539381 A JP 4539381A JP S57162123 A JPS57162123 A JP S57162123A
Authority
JP
Japan
Prior art keywords
added
permalloy
layer
film
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.)
Granted
Application number
JP56045393A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0152814B2 (enrdf_load_stackoverflow
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 true JPS57162123A (en) 1982-10-05
JPH0152814B2 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)

Cited By (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

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4974910A (enrdf_load_stackoverflow) * 1972-11-20 1974-07-19
JPS5228304A (en) * 1975-08-28 1977-03-03 Fuji Photo Film Co Ltd Magnetic recording media
JPS5284264A (en) * 1976-01-07 1977-07-13 Toray Ind Inc Pulyester film with improved surface characteristics
JPS5341355A (en) * 1976-09-29 1978-04-14 Toray Ind Inc Biaxilialy streched polyester film
JPS5354293A (en) * 1976-10-27 1978-05-17 Teijin Ltd Preparation of polyester
JPS53128683A (en) * 1977-04-15 1978-11-09 Toray Ind Inc Polyester film having modified surface
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
JPS5494574A (en) * 1978-01-09 1979-07-26 Toray Ind Inc Polyester film with improved surface
JPS54123923A (en) * 1978-03-17 1979-09-26 Matsushita Electric Ind Co Ltd Magnetic recording medium

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4974910A (enrdf_load_stackoverflow) * 1972-11-20 1974-07-19
JPS5228304A (en) * 1975-08-28 1977-03-03 Fuji Photo Film Co Ltd Magnetic recording media
JPS5284264A (en) * 1976-01-07 1977-07-13 Toray Ind Inc Pulyester film with improved surface characteristics
JPS5341355A (en) * 1976-09-29 1978-04-14 Toray Ind Inc Biaxilialy streched polyester film
JPS5354293A (en) * 1976-10-27 1978-05-17 Teijin Ltd Preparation of polyester
JPS53128683A (en) * 1977-04-15 1978-11-09 Toray Ind Inc Polyester film having modified surface
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
JPS5494574A (en) * 1978-01-09 1979-07-26 Toray Ind Inc Polyester film with improved surface
US4233352A (en) * 1978-01-09 1980-11-11 Toray Industries, Inc. Polyester film and method of manufacture thereof
JPS54123923A (en) * 1978-03-17 1979-09-26 Matsushita Electric Ind Co Ltd Magnetic recording medium

Cited By (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

Also Published As

Publication number Publication date
JPH0152814B2 (enrdf_load_stackoverflow) 1989-11-10

Similar Documents

Publication Publication Date Title
JPS5737737A (en) Magnetic recording medium
IL140910A0 (en) Oral pharmaceutical compositions of a compound having an antifungal activity and a method for its preparation
GB1404828A (en) Photosensitive material
JPS5792421A (en) Magnetic recording medium
JPS57162123A (en) Magnetic recording medium
JPS5668928A (en) Magnetic recording medium
JPS54123923A (en) Magnetic recording medium
JPS57195321A (en) Metallic thin film magnetic recording medium
JPS5583209A (en) Ferromagnetic powder and preparing the same
JPS54162508A (en) Magnetic memory medium
JPS5525821A (en) Magnetic memory substance
JPS568468A (en) Composition for forming ultraviolet ray-curable magnetic coated film and coated film formation employing the same
JPS54103751A (en) Method of producing high recording density magnetic disc
JPS5532009A (en) Silver halide photographic material
JPS57186302A (en) Magnetic unit and magnetic recording medium
JPS5661033A (en) Magnetic recording medium
JPS56124121A (en) Magnetic recording medium
JPS60173096A (ja) フツ素系潤滑剤
JPS56163525A (en) Magnetic recording substance
JPS5792434A (en) Manufacture of magnetic recording medium
JPS56143521A (en) Manufacture of magnetic recording medium
JPS5744226A (en) Magnetic recording medium
JPS57158032A (en) Magnetic recording medium
JPS57109129A (en) Magnetic recording medium
JPS5724029A (en) Magnetic recording medium