JPS58105422A - 磁気ヘツド - Google Patents

磁気ヘツド

Info

Publication number
JPS58105422A
JPS58105422A JP20398481A JP20398481A JPS58105422A JP S58105422 A JPS58105422 A JP S58105422A JP 20398481 A JP20398481 A JP 20398481A JP 20398481 A JP20398481 A JP 20398481A JP S58105422 A JPS58105422 A JP S58105422A
Authority
JP
Japan
Prior art keywords
magnetic
layer
magnetic head
head
permeability
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
JP20398481A
Other languages
English (en)
Japanese (ja)
Other versions
JPH047009B2 (enrdf_load_stackoverflow
Inventor
Naoko Kawamura
川村　尚古
Zenkichi Nakamura
中村　善吉
Kietsu Iwabuchi
岩渕　喜悦
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP20398481A priority Critical patent/JPS58105422A/ja
Publication of JPS58105422A publication Critical patent/JPS58105422A/ja
Publication of JPH047009B2 publication Critical patent/JPH047009B2/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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • 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)
  • Magnetic Heads (AREA)
JP20398481A 1981-12-17 1981-12-17 磁気ヘツド Granted JPS58105422A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20398481A JPS58105422A (ja) 1981-12-17 1981-12-17 磁気ヘツド

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20398481A JPS58105422A (ja) 1981-12-17 1981-12-17 磁気ヘツド

Publications (2)

Publication Number Publication Date
JPS58105422A true JPS58105422A (ja) 1983-06-23
JPH047009B2 JPH047009B2 (enrdf_load_stackoverflow) 1992-02-07

Family

ID=16482859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20398481A Granted JPS58105422A (ja) 1981-12-17 1981-12-17 磁気ヘツド

Country Status (1)

Country Link
JP (1) JPS58105422A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6157016A (ja) * 1984-08-27 1986-03-22 Hitachi Ltd 磁気ヘッドの製造方法
JPS6190342A (ja) * 1984-10-08 1986-05-08 Ricoh Co Ltd 光学的情報記憶媒体
JPS61240412A (ja) * 1985-04-17 1986-10-25 Sanyo Electric Co Ltd 磁気ヘツド
GB2202078A (en) * 1987-02-04 1988-09-14 Sony Corp Magnetic heads
JPH02220209A (ja) * 1989-02-20 1990-09-03 Mitsubishi Electric Corp 磁気ヘッド

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51140708A (en) * 1975-05-30 1976-12-03 Victor Co Of Japan Ltd Magnetic head
JPS537313A (en) * 1976-07-09 1978-01-23 Nippon Gakki Seizo Kk Magnetic headcore production
JPS5573918A (en) * 1978-11-27 1980-06-04 Sony Corp Magnetic head

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51140708A (en) * 1975-05-30 1976-12-03 Victor Co Of Japan Ltd Magnetic head
JPS537313A (en) * 1976-07-09 1978-01-23 Nippon Gakki Seizo Kk Magnetic headcore production
JPS5573918A (en) * 1978-11-27 1980-06-04 Sony Corp Magnetic head

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6157016A (ja) * 1984-08-27 1986-03-22 Hitachi Ltd 磁気ヘッドの製造方法
JPS6190342A (ja) * 1984-10-08 1986-05-08 Ricoh Co Ltd 光学的情報記憶媒体
JPS61240412A (ja) * 1985-04-17 1986-10-25 Sanyo Electric Co Ltd 磁気ヘツド
GB2202078A (en) * 1987-02-04 1988-09-14 Sony Corp Magnetic heads
US4953050A (en) * 1987-02-04 1990-08-28 Sony Corporation Magnetic head with Ru containing soft magnetic alloy in gap
GB2202078B (en) * 1987-02-04 1991-05-08 Sony Corp Magnetic heads
JPH02220209A (ja) * 1989-02-20 1990-09-03 Mitsubishi Electric Corp 磁気ヘッド

Also Published As

Publication number Publication date
JPH047009B2 (enrdf_load_stackoverflow) 1992-02-07

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