FR2169915B1 - - Google Patents

Info

Publication number
FR2169915B1
FR2169915B1 FR7247146A FR7247146A FR2169915B1 FR 2169915 B1 FR2169915 B1 FR 2169915B1 FR 7247146 A FR7247146 A FR 7247146A FR 7247146 A FR7247146 A FR 7247146A FR 2169915 B1 FR2169915 B1 FR 2169915B1
Authority
FR
France
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
FR7247146A
Other versions
FR2169915A1 (fr
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2169915A1 publication Critical patent/FR2169915A1/fr
Application granted granted Critical
Publication of FR2169915B1 publication Critical patent/FR2169915B1/fr
Expired 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
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Magnetic Record Carriers (AREA)
  • Sliding-Contact Bearings (AREA)
  • Physical Vapour Deposition (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
FR7247146A 1971-12-30 1972-12-26 Expired FR2169915B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21435371A 1971-12-30 1971-12-30

Publications (2)

Publication Number Publication Date
FR2169915A1 FR2169915A1 (fr) 1973-09-14
FR2169915B1 true FR2169915B1 (fr) 1976-08-27

Family

ID=22798740

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7247146A Expired FR2169915B1 (fr) 1971-12-30 1972-12-26

Country Status (9)

Country Link
JP (1) JPS52736B2 (fr)
AU (1) AU476002B2 (fr)
BE (1) BE793406A (fr)
CA (1) CA995865A (fr)
CH (1) CH576863A5 (fr)
FR (1) FR2169915B1 (fr)
GB (1) GB1395738A (fr)
IT (1) IT969988B (fr)
NL (1) NL7217785A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57205825A (en) * 1981-06-11 1982-12-17 Nippon Gakki Seizo Kk Magnetic recording tape
JPH0715748B2 (ja) * 1985-02-27 1995-02-22 日立マクセル株式会社 磁気記録媒体
JPS61198424A (ja) * 1985-02-27 1986-09-02 Hitachi Maxell Ltd 磁気記録媒体
CN114113156B (zh) * 2021-10-26 2024-05-17 浙江大学 一种无衬底单原子层金属薄膜的机械减薄制备装置及方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185775A (en) * 1958-03-10 1965-05-25 Iit Res Inst Oriented tape
FR1306142A (fr) * 1961-09-04 1962-10-13 California Research Corp Dispersions de métaux ferromagnétiques et procédé pour les fabriquer
US3494026A (en) * 1962-08-13 1970-02-10 Matsushita Electric Ind Co Ltd Methods for manufacturing magnetic heads
FR1387098A (fr) * 1963-11-06 1965-01-29 Ncr Co Procédé de fabrication de circuits magnétiques à pellicule mince
US3475309A (en) * 1967-06-21 1969-10-28 Atomic Energy Commission Method of making paramagnetic nickel ferrite thin films

Also Published As

Publication number Publication date
AU4870772A (en) 1974-05-09
FR2169915A1 (fr) 1973-09-14
DE2263487A1 (de) 1973-07-19
AU476002B2 (en) 1976-09-09
IT969988B (it) 1974-04-10
GB1395738A (en) 1975-05-29
CA995865A (en) 1976-08-31
DE2263487B2 (de) 1977-05-05
BE793406A (fr) 1973-04-16
CH576863A5 (fr) 1976-06-30
JPS4879131A (fr) 1973-10-24
JPS52736B2 (fr) 1977-01-10
NL7217785A (fr) 1973-07-03

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Legal Events

Date Code Title Description
ST Notification of lapse