JPS5558827A - Manufacture for magnetic head - Google Patents

Manufacture for magnetic head

Info

Publication number
JPS5558827A
JPS5558827A JP12950378A JP12950378A JPS5558827A JP S5558827 A JPS5558827 A JP S5558827A JP 12950378 A JP12950378 A JP 12950378A JP 12950378 A JP12950378 A JP 12950378A JP S5558827 A JPS5558827 A JP S5558827A
Authority
JP
Japan
Prior art keywords
glass
magnetic
head
gap
plate
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
JP12950378A
Other languages
Japanese (ja)
Inventor
Sumio Kawamoto
Hirotomo Ogiwara
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Denshi KK filed Critical Hitachi Denshi KK
Priority to JP12950378A priority Critical patent/JPS5558827A/en
Publication of JPS5558827A publication Critical patent/JPS5558827A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To facilitate miniaturigation, to decrease cross talk and to increase the characteristics, by inserting and welding the plate glass of non-magnetic substance between the magnetic effective gap of the composite magnetic head using ferrite as the magnetic head element to constitute the fixed magnetic circuit.
CONSTITUTION: After placing the blocks 11W14 machining the ferrite of oxide magnetic substance into a given form and mirror polishing the gap forming surface of them, the plate shape glass 15 is clipped to locate the erase gap 16 and the recording and reproduction gap 17, and unification is made by pressing and welding the part B,B' through the use of the rod glass 18 of 0.1W0.2mm of oxide lead glass lower in melting point than the plate glass 15. Further, along A-A', cutting is made on the track width. Thus, the composite head having the magnetic core pieces 1W4, erase head 5, and recording and reproduction head 6, welded with the glass 7 separated with the glass plate 8, and wound with the coils 9 and 10 is manufactured.
COPYRIGHT: (C)1980,JPO&Japio
JP12950378A 1978-10-23 1978-10-23 Manufacture for magnetic head Pending JPS5558827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12950378A JPS5558827A (en) 1978-10-23 1978-10-23 Manufacture for magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12950378A JPS5558827A (en) 1978-10-23 1978-10-23 Manufacture for magnetic head

Publications (1)

Publication Number Publication Date
JPS5558827A true JPS5558827A (en) 1980-05-01

Family

ID=15011085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12950378A Pending JPS5558827A (en) 1978-10-23 1978-10-23 Manufacture for magnetic head

Country Status (1)

Country Link
JP (1) JPS5558827A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986002189A1 (en) * 1984-10-05 1986-04-10 Olympus Optical Co., Ltd. Compound magnetic head
JPS62192021A (en) * 1986-02-19 1987-08-22 Sony Corp Magnetic head
JPS63171408A (en) * 1987-01-09 1988-07-15 Alps Electric Co Ltd Magnetic head

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4831243A (en) * 1971-08-25 1973-04-24
JPS50142215A (en) * 1974-05-02 1975-11-15

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4831243A (en) * 1971-08-25 1973-04-24
JPS50142215A (en) * 1974-05-02 1975-11-15

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986002189A1 (en) * 1984-10-05 1986-04-10 Olympus Optical Co., Ltd. Compound magnetic head
US4862304A (en) * 1984-10-05 1989-08-29 Olympus Optical Co., Ltd. Composite magnetic head
JPS62192021A (en) * 1986-02-19 1987-08-22 Sony Corp Magnetic head
JPS63171408A (en) * 1987-01-09 1988-07-15 Alps Electric Co Ltd Magnetic head

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