JPS5647910A - Narrow-track magnetic head - Google Patents

Narrow-track magnetic head

Info

Publication number
JPS5647910A
JPS5647910A JP12110979A JP12110979A JPS5647910A JP S5647910 A JPS5647910 A JP S5647910A JP 12110979 A JP12110979 A JP 12110979A JP 12110979 A JP12110979 A JP 12110979A JP S5647910 A JPS5647910 A JP S5647910A
Authority
JP
Japan
Prior art keywords
gap
thin
precision
nonmagnetic
narrow
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
JP12110979A
Other languages
Japanese (ja)
Inventor
Shunichi Ko
Hiroshi Tsuchida
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP12110979A priority Critical patent/JPS5647910A/en
Publication of JPS5647910A publication Critical patent/JPS5647910A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a high-precision narrow-track-width head easily by forming the front gap of a thin-plate core of an magnetic alloy of high magnetic permeability by using a nonmagnetic metal and by forming the rear gap by sticking and holding a self-welded core on a nonmagnetic material substance of wear resistance.
CONSTITUTION: Thin-plate blocks 14A and 14B, made of an Fe-Al-Si alloy of high magnetic permeability to a thickness of ≤25μ, are butted together to a size of 0.2W 0.6μ with a nonmagnetic metal interposed to form gap part 15 and the upper and lower of gap part 15 are welded by themselves to form block body 14. Next, block body 14 is sliced along X1, X2... to obtain thin-piece core materials 16 with gap length Gl. Each material 16, after being polished to a prescribed thickness of ≤25μ with precision, fixed to nonmagnetic support 17 of ceramics, etc., by adhesives. Next, winding window 18 is made to form tape slide surface 19. Thus, the gap part and track width are worked with high precision. Support 17 improves resistance to wear.
COPYRIGHT: (C)1981,JPO&Japio
JP12110979A 1979-09-20 1979-09-20 Narrow-track magnetic head Pending JPS5647910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12110979A JPS5647910A (en) 1979-09-20 1979-09-20 Narrow-track magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12110979A JPS5647910A (en) 1979-09-20 1979-09-20 Narrow-track magnetic head

Publications (1)

Publication Number Publication Date
JPS5647910A true JPS5647910A (en) 1981-04-30

Family

ID=14803093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12110979A Pending JPS5647910A (en) 1979-09-20 1979-09-20 Narrow-track magnetic head

Country Status (1)

Country Link
JP (1) JPS5647910A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS492515A (en) * 1972-04-18 1974-01-10
JPS5222911A (en) * 1975-08-13 1977-02-21 Matsushita Electric Ind Co Ltd Producing method of a magnetic head
JPS5495216A (en) * 1978-01-12 1979-07-27 Matsushita Electric Ind Co Ltd Production of compound magnetic head
JPS54107328A (en) * 1978-02-09 1979-08-23 Sanyo Electric Co Ltd Production of magnetic head

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS492515A (en) * 1972-04-18 1974-01-10
JPS5222911A (en) * 1975-08-13 1977-02-21 Matsushita Electric Ind Co Ltd Producing method of a magnetic head
JPS5495216A (en) * 1978-01-12 1979-07-27 Matsushita Electric Ind Co Ltd Production of compound magnetic head
JPS54107328A (en) * 1978-02-09 1979-08-23 Sanyo Electric Co Ltd Production of magnetic head

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