JPS54123016A - Magnetic head and production thereof - Google Patents

Magnetic head and production thereof

Info

Publication number
JPS54123016A
JPS54123016A JP3069378A JP3069378A JPS54123016A JP S54123016 A JPS54123016 A JP S54123016A JP 3069378 A JP3069378 A JP 3069378A JP 3069378 A JP3069378 A JP 3069378A JP S54123016 A JPS54123016 A JP S54123016A
Authority
JP
Japan
Prior art keywords
grooves
gap
glass
blocks
zno
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
JP3069378A
Other languages
Japanese (ja)
Inventor
Taketoshi Yonezawa
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 JP3069378A priority Critical patent/JPS54123016A/en
Publication of JPS54123016A publication Critical patent/JPS54123016A/en
Pending legal-status Critical Current

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  • Magnetic Heads (AREA)

Abstract

PURPOSE: To prevent a gap loss and a clearance loss from being established and the frequency characteristics and recording efficiency from being deteriorated by making a gap member of ZnO.Fe2O3 thereby to eliminate the problems of the joint and fixture of the halves of a head core.
CONSTITUTION: The rectangular blocks 1 and 1' of a highly permeable ferrite are formed with longitudinal grooves 2 and 2' and with transverse grooves 3 and 3' having inclined depth. The bases 11 of the blocks 12 and 12' thus worked are used as the gap and the track. Then, rod-shaped glass members are fitted in the grooves 2 and 2', and glass 13 is laminated thereon the heated melting operations. The excess glass is removed by the grounding operation to expose the original core side to the outside. Then, winding grooves 4 and 4' are formed, and thin films 5 and 5' of ZnO.Fe2O3 having a thickness t = t' are adhered to the gap facing sides polished to have a mirror surface. Then, the blocks 12 and 12' are jointed and heated so that the films 5 and 5' and the glass 13 are integrally solidified. Finally, the cutting operation is made such that the grooves 3 and 3' are divided into halves.
COPYRIGHT: (C)1979,JPO&Japio
JP3069378A 1978-03-16 1978-03-16 Magnetic head and production thereof Pending JPS54123016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3069378A JPS54123016A (en) 1978-03-16 1978-03-16 Magnetic head and production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3069378A JPS54123016A (en) 1978-03-16 1978-03-16 Magnetic head and production thereof

Publications (1)

Publication Number Publication Date
JPS54123016A true JPS54123016A (en) 1979-09-25

Family

ID=12310749

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3069378A Pending JPS54123016A (en) 1978-03-16 1978-03-16 Magnetic head and production thereof

Country Status (1)

Country Link
JP (1) JPS54123016A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58173023U (en) * 1982-05-17 1983-11-18 富士電気化学株式会社 Narrow track composite digital magnetic head

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58173023U (en) * 1982-05-17 1983-11-18 富士電気化学株式会社 Narrow track composite digital magnetic head
WO1983004128A1 (en) * 1982-05-17 1983-11-24 Fuji Electrochemical Co., Ltd. Narrow-track composite digital magnetic head and method of fabrication thereof
EP0108152A1 (en) * 1982-05-17 1984-05-16 Fuji Electrochemical Co.Ltd. Narrow-track composite digital magnetic head
EP0108152B1 (en) * 1982-05-17 1987-10-28 Fuji Electrochemical Co.Ltd. Narrow-track composite digital magnetic head

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