JPS57169915A - Magnetic recorder and reproducer - Google Patents

Magnetic recorder and reproducer

Info

Publication number
JPS57169915A
JPS57169915A JP3749881A JP3749881A JPS57169915A JP S57169915 A JPS57169915 A JP S57169915A JP 3749881 A JP3749881 A JP 3749881A JP 3749881 A JP3749881 A JP 3749881A JP S57169915 A JPS57169915 A JP S57169915A
Authority
JP
Japan
Prior art keywords
magnetic
plane
recording medium
magnetic head
head
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
JP3749881A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0159643B2 (enrdf_load_stackoverflow
Inventor
Takeshi Takahashi
Kiyoshi Sasaki
Akio Kuroe
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP3749881A priority Critical patent/JPS57169915A/ja
Publication of JPS57169915A publication Critical patent/JPS57169915A/ja
Publication of JPH0159643B2 publication Critical patent/JPH0159643B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/133Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
JP3749881A 1981-03-16 1981-03-16 Magnetic recorder and reproducer Granted JPS57169915A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3749881A JPS57169915A (en) 1981-03-16 1981-03-16 Magnetic recorder and reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3749881A JPS57169915A (en) 1981-03-16 1981-03-16 Magnetic recorder and reproducer

Publications (2)

Publication Number Publication Date
JPS57169915A true JPS57169915A (en) 1982-10-19
JPH0159643B2 JPH0159643B2 (enrdf_load_stackoverflow) 1989-12-19

Family

ID=12499181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3749881A Granted JPS57169915A (en) 1981-03-16 1981-03-16 Magnetic recorder and reproducer

Country Status (1)

Country Link
JP (1) JPS57169915A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03124313U (enrdf_load_stackoverflow) * 1990-03-30 1991-12-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03124313U (enrdf_load_stackoverflow) * 1990-03-30 1991-12-17

Also Published As

Publication number Publication date
JPH0159643B2 (enrdf_load_stackoverflow) 1989-12-19

Similar Documents

Publication Publication Date Title
SE7904666L (sv) Magnetisk informationsberare
EP0391258A3 (en) Magnetic recording medium and method for its production
JPS57169915A (en) Magnetic recorder and reproducer
KR900000843A (ko) 자기 레코딩/리딩 헤드용 활성면의 편평방법
EP0287280A3 (en) Magnetic recording medium process for producing the same
JPS57113416A (en) Vertical magnetic recording medium
JPS5792402A (en) Magnetic recording and reproducing method
JPS5792401A (en) Magnetic recording and reproducing method
JPS5755531A (en) Vertical magnetic recording medium
JPS5683838A (en) Magnetic recording medium and magnetic recording and reproducing device using it
JPS56127930A (en) Magnetic recording medium
KR890004755B1 (ko) Tb-Gd-Fe 3원계비정질 수직광열자기기록매체
JPS55139624A (en) Vertical magnetization type magnetic head
JPS57147130A (en) Magnetic recording medium
JPS5634127A (en) Surface forming method of magnetic head
JPS5737720A (en) Magnetic recording medium and its manufacture
JPS55113122A (en) Magnetic head unit
JPS644939A (en) Magneto-optical disk
JPS56127929A (en) Magnetic recording medium
JPS57113409A (en) Thin-film head
JPS56153536A (en) Magnetic disc
JPS55163630A (en) Magnetic recording medium
JPS6417239A (en) Multi-layered magneto-optical disk and recording method thereof
JPS57167103A (en) Recording method for vertical magnetization
JPS6466815A (en) Perpendicular magnetic recording medium