JPS5792402A - Magnetic recording and reproducing method - Google Patents

Magnetic recording and reproducing method

Info

Publication number
JPS5792402A
JPS5792402A JP55165595A JP16559580A JPS5792402A JP S5792402 A JPS5792402 A JP S5792402A JP 55165595 A JP55165595 A JP 55165595A JP 16559580 A JP16559580 A JP 16559580A JP S5792402 A JPS5792402 A JP S5792402A
Authority
JP
Japan
Prior art keywords
crystal
layer
recording medium
vapor
base
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.)
Pending
Application number
JP55165595A
Other languages
Japanese (ja)
Inventor
Akira Nahara
Makoto Nagao
Yoshihiro Arai
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 JP55165595A priority Critical patent/JPS5792402A/en
Priority to DE19813146749 priority patent/DE3146749A1/en
Publication of JPS5792402A publication Critical patent/JPS5792402A/en
Pending 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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/488—Disposition of heads
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/488—Disposition of heads
    • G11B5/4893—Disposition of heads relative to moving tape
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/851—Coating a support with a magnetic layer by sputtering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H01F41/20—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates by evaporation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Record Carriers (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE: To reduce the wear, peeling, etc., of the ferromagnetic slanting-incident vapor-deposited layer of a magnetic recording medium, by setting the growth direction of rhombic crystal of the thickest layer of the vapor-deposited layer of the recording medium and the relative motion direction of a magnetic head at an acute angle.
CONSTITUTION: A magnetic recording medium 1 consists of a base 2 of a nonmagnetic material and a recording layer 3 formed on the base 2 by using a ferromagnetic material. The recording layer 3 consists of two crystal columnar layers 3A and 3B having growth directions A of crystal columns of the ferromagnetic material slanting to the surface of the base 2. The crystal layer 3A is thinner than the 3B. A magnetic head 4 is moved relatively to the recording medium 1 in a direction having an acute angle α to the growth direction of crystal columns of the thicker crystal columnar layer 3B to record and reproduce information. In this method, the crystal columns are pressed by the magnetic head to slant further, thereby reducing the wear, peeling, etc., of the vapor- deposited layer.
COPYRIGHT: (C)1982,JPO&Japio
JP55165595A 1980-11-25 1980-11-25 Magnetic recording and reproducing method Pending JPS5792402A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP55165595A JPS5792402A (en) 1980-11-25 1980-11-25 Magnetic recording and reproducing method
DE19813146749 DE3146749A1 (en) 1980-11-25 1981-11-25 Process for magnetic recording and reproduction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55165595A JPS5792402A (en) 1980-11-25 1980-11-25 Magnetic recording and reproducing method

Publications (1)

Publication Number Publication Date
JPS5792402A true JPS5792402A (en) 1982-06-09

Family

ID=15815330

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55165595A Pending JPS5792402A (en) 1980-11-25 1980-11-25 Magnetic recording and reproducing method

Country Status (2)

Country Link
JP (1) JPS5792402A (en)
DE (1) DE3146749A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6423417A (en) * 1987-07-20 1989-01-26 Hitachi Maxell Magnetic recording medium
JPS6433716A (en) * 1987-07-30 1989-02-03 Matsushita Electric Industrial Co Ltd Magnetic recording medium

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0227069A3 (en) * 1985-12-25 1989-06-14 Hitachi, Ltd. Middle layer material for magnetic disc
DE3888984T2 (en) * 1987-01-07 1994-08-04 Hitachi Maxell Magnetic record carrier.
JP2840467B2 (en) * 1991-02-07 1998-12-24 キヤノン株式会社 Magnetic recording and reproducing method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52129409A (en) * 1976-04-23 1977-10-29 Fuji Photo Film Co Ltd Manufacture of magnetic recording medium

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52129409A (en) * 1976-04-23 1977-10-29 Fuji Photo Film Co Ltd Manufacture of magnetic recording medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6423417A (en) * 1987-07-20 1989-01-26 Hitachi Maxell Magnetic recording medium
JPS6433716A (en) * 1987-07-30 1989-02-03 Matsushita Electric Industrial Co Ltd Magnetic recording medium

Also Published As

Publication number Publication date
DE3146749A1 (en) 1982-06-16

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