DE3816467A1 - Magnetaufzeichnungsmedium - Google Patents

Magnetaufzeichnungsmedium

Info

Publication number
DE3816467A1
DE3816467A1 DE3816467A DE3816467A DE3816467A1 DE 3816467 A1 DE3816467 A1 DE 3816467A1 DE 3816467 A DE3816467 A DE 3816467A DE 3816467 A DE3816467 A DE 3816467A DE 3816467 A1 DE3816467 A1 DE 3816467A1
Authority
DE
Germany
Prior art keywords
film
lubricant
magnetic
recording medium
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.)
Granted
Application number
DE3816467A
Other languages
German (de)
English (en)
Other versions
DE3816467C2 (enrdf_load_stackoverflow
Inventor
Takanori Kudo
Takashi Nishimura
Heigo Ishihara
Kazuetsu Yoshida
Masaaki Futamoto
Toyoji Okuwaki
Yoshihiro Shiroishi
Tomoyuki Ohno
Motoo Akagi
Masayuki Katsumoto
Shinichiro Saito
Osamu Kitakami
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.)
Hitachi Ltd
Maxell Ltd
Original Assignee
Hitachi Ltd
Hitachi Maxell 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 Hitachi Ltd, Hitachi Maxell Ltd filed Critical Hitachi Ltd
Publication of DE3816467A1 publication Critical patent/DE3816467A1/de
Application granted granted Critical
Publication of DE3816467C2 publication Critical patent/DE3816467C2/de
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
    • G11B5/72—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
    • G11B5/7257—Perfluoropolyether lubricant

Landscapes

  • Lubricants (AREA)
  • Magnetic Record Carriers (AREA)
  • Paints Or Removers (AREA)
DE3816467A 1987-05-13 1988-05-13 Magnetaufzeichnungsmedium Granted DE3816467A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62114847A JPS63281218A (ja) 1987-05-13 1987-05-13 磁気記録媒体

Publications (2)

Publication Number Publication Date
DE3816467A1 true DE3816467A1 (de) 1988-12-08
DE3816467C2 DE3816467C2 (enrdf_load_stackoverflow) 1990-08-16

Family

ID=14648197

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3816467A Granted DE3816467A1 (de) 1987-05-13 1988-05-13 Magnetaufzeichnungsmedium

Country Status (2)

Country Link
JP (1) JPS63281218A (enrdf_load_stackoverflow)
DE (1) DE3816467A1 (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0444752A1 (en) * 1990-03-02 1991-09-04 ENICHEM SYNTHESIS S.p.A. Agents affording sliding characteristics
EP0565110A1 (en) * 1992-04-10 1993-10-13 Fuji Photo Film Co., Ltd. Magnetic recording medium
EP0606640A1 (de) * 1993-01-15 1994-07-20 BASF Magnetics GmbH Magnetisches Aufzeichnungsmedium
EP0634394A3 (en) * 1988-10-14 1995-07-26 Matsushita Electric Ind Co Ltd Fluorinated organic compound.
WO1997012852A1 (de) * 1995-09-29 1997-04-10 Hasso Meinert Semifluorierte alkane und ihre verwendung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4300858A1 (de) 1993-01-15 1994-07-21 Basf Magnetics Gmbh Magnetisches Aufzeichnungsmedium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4268556A (en) * 1979-01-08 1981-05-19 Minnesota Mining And Manufacturing Company Rigid magnetic recording disks lubricated with fluorinated telechelic polyether
DE3614439A1 (de) * 1985-05-01 1986-11-06 Hitachi Maxell, Ltd., Ibaraki, Osaka Magnetisches aufzeichnungsmedium

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59116931A (ja) * 1982-12-23 1984-07-06 Seiko Epson Corp 磁気記録媒体の潤滑層形成法
JP2526545B2 (ja) * 1986-04-07 1996-08-21 ソニー株式会社 磁気記録媒体

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4268556A (en) * 1979-01-08 1981-05-19 Minnesota Mining And Manufacturing Company Rigid magnetic recording disks lubricated with fluorinated telechelic polyether
DE3614439A1 (de) * 1985-05-01 1986-11-06 Hitachi Maxell, Ltd., Ibaraki, Osaka Magnetisches aufzeichnungsmedium

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0634394A3 (en) * 1988-10-14 1995-07-26 Matsushita Electric Ind Co Ltd Fluorinated organic compound.
EP0444752A1 (en) * 1990-03-02 1991-09-04 ENICHEM SYNTHESIS S.p.A. Agents affording sliding characteristics
US5202041A (en) * 1990-03-02 1993-04-13 Enichem Synthesis S.P.A. Ski lubricant comprising paraffinic wax and a hydrocarbon compound containing a perfluoro segment
EP0565110A1 (en) * 1992-04-10 1993-10-13 Fuji Photo Film Co., Ltd. Magnetic recording medium
EP0606640A1 (de) * 1993-01-15 1994-07-20 BASF Magnetics GmbH Magnetisches Aufzeichnungsmedium
WO1997012852A1 (de) * 1995-09-29 1997-04-10 Hasso Meinert Semifluorierte alkane und ihre verwendung
EP0965329B1 (de) * 1995-09-29 2002-03-20 Hasso Meinert Dermatikum und Verwendung von semifluorierten Alkanen zur Herstellung von Dermatika

Also Published As

Publication number Publication date
JPS63281218A (ja) 1988-11-17
DE3816467C2 (enrdf_load_stackoverflow) 1990-08-16

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee