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JPS5674810A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS5674810A
JPS5674810A JP15104679A JP15104679A JPS5674810A JP S5674810 A JPS5674810 A JP S5674810A JP 15104679 A JP15104679 A JP 15104679A JP 15104679 A JP15104679 A JP 15104679A JP S5674810 A JPS5674810 A JP S5674810A
Authority
JP
Japan
Prior art keywords
magnetic layer
magnetic
width
point
layer
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
JP15104679A
Other languages
Japanese (ja)
Inventor
Kenji Kanai
Nobumasa Kaminaka
Kidai Nochi
Noboru Nomura
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 JP15104679A priority Critical patent/JPS5674810A/en
Priority to US06/165,941 priority patent/US4353102A/en
Publication of JPS5674810A publication Critical patent/JPS5674810A/en
Pending legal-status Critical Current

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  • Magnetic Heads (AREA)

Abstract

PURPOSE: To obtain a high-density and high-efficiency recording properties, by providing the two inflection points in the width of the 2nd magnetic layer at the upper part of the 1st magnetic layer and at the same time setting the width of the 2nd magnetic layer smaller than that of the 2nd inflection point.
CONSTITUTION: The insulated layer and the conductive layer are laminated together on the magnetic substrate of the 1st magnetic layer formed by disposing the magnetic thin film of Ni-Fe, etc. onto the nonmagnetic substrate, thus forming a signal winding. Then a closed magnetic circuit is formed on the signal winding through the front action blank part and the rear junction part of the 2nd magnetic layer, and two inflection points A-A' and B-B' are provided in the width of the 2nd magnetic layer. Thus the 1st inflection point A-A' is set between the rear end 11 of the action blank part and the position which is backward from the end 11 by 0.2L, and the 2nd inflection point B-B' is set between the front end 9 and the position which is forward of the end 9 by 0.2L, where the distance between the ends 11 and 9 is set to L. And the width of the 2nd magnetic layer at the point A-A' is set smaller than that at the point B-B'. In such way, a high-density and high-efficiency recording properties can be obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP15104679A 1979-07-04 1979-11-20 Magnetic head Pending JPS5674810A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP15104679A JPS5674810A (en) 1979-11-20 1979-11-20 Magnetic head
US06/165,941 US4353102A (en) 1979-07-04 1980-07-03 Thin-film magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15104679A JPS5674810A (en) 1979-11-20 1979-11-20 Magnetic head

Publications (1)

Publication Number Publication Date
JPS5674810A true JPS5674810A (en) 1981-06-20

Family

ID=15510107

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15104679A Pending JPS5674810A (en) 1979-07-04 1979-11-20 Magnetic head

Country Status (1)

Country Link
JP (1) JPS5674810A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5990216A (en) * 1982-11-12 1984-05-24 Nippon Mining Co Ltd Winding type thin-film magnetic head and its manufacture
JPH04111212A (en) * 1990-08-31 1992-04-13 Hitachi Ltd Thin-film magnetic head

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5990216A (en) * 1982-11-12 1984-05-24 Nippon Mining Co Ltd Winding type thin-film magnetic head and its manufacture
JPH0232686B2 (en) * 1982-11-12 1990-07-23 Nippon Mining Co
JPH04111212A (en) * 1990-08-31 1992-04-13 Hitachi Ltd Thin-film magnetic head

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