JPS54156619A - Magnetic head and production thereof - Google Patents

Magnetic head and production thereof

Info

Publication number
JPS54156619A
JPS54156619A JP6541478A JP6541478A JPS54156619A JP S54156619 A JPS54156619 A JP S54156619A JP 6541478 A JP6541478 A JP 6541478A JP 6541478 A JP6541478 A JP 6541478A JP S54156619 A JPS54156619 A JP S54156619A
Authority
JP
Japan
Prior art keywords
grooves
blocks
gap
top surfaces
become
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
JP6541478A
Other languages
Japanese (ja)
Other versions
JPS635802B2 (en
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 JP6541478A priority Critical patent/JPS54156619A/en
Publication of JPS54156619A publication Critical patent/JPS54156619A/en
Publication of JPS635802B2 publication Critical patent/JPS635802B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To achieve higher production yield, stabler quality, better high frequency characteristics and higher abrasion resistance by specifying the production process of the video head and firmly forming the gap of high accuracy.
CONSTITUTION: First grooves 3, 4 of V-shape which become glass stoppers are formed on the top surfaces of rectangular parallelopiped blocks 1, 2 of high magnetic permeability ferrite, and a plurality of inclinded second grooves 5, 6 are formed on the outer edge of the top surfaces. After molten glass 9, 10 has been filled in the grooves 3 thru 6, third grooves 11, 12 which become winding windows are provided by parting the grooves 5, 6. Next, the top surfaces are finished to a mirror surface and non-magnetic materials 13, 14 are filmed so that the sum of their thicknesses t1, t2 become roughly equal to the gap width, after which, the blocks are contacted and are so adjusted that the width α of the base parts 7, 8 becomes equal to the track width. In this state the blocks 1, 2 are bound by heating in an inert gas atmosphere, whereby a front gap A and a rear gap B are created at the front and near of the grooves 11, 12. Next, the blocks 1, 2 are cut, whereby a discrete head 15 is obtained.
COPYRIGHT: (C)1979,JPO&Japio
JP6541478A 1978-05-31 1978-05-31 Magnetic head and production thereof Granted JPS54156619A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6541478A JPS54156619A (en) 1978-05-31 1978-05-31 Magnetic head and production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6541478A JPS54156619A (en) 1978-05-31 1978-05-31 Magnetic head and production thereof

Publications (2)

Publication Number Publication Date
JPS54156619A true JPS54156619A (en) 1979-12-10
JPS635802B2 JPS635802B2 (en) 1988-02-05

Family

ID=13286345

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6541478A Granted JPS54156619A (en) 1978-05-31 1978-05-31 Magnetic head and production thereof

Country Status (1)

Country Link
JP (1) JPS54156619A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61267908A (en) * 1985-05-21 1986-11-27 Alps Electric Co Ltd Magnetic head and its production
CN108349814A (en) * 2015-11-11 2018-07-31 阿莫泰克有限公司 The manufacturing method of ferrite sheet and use its ferrite sheet

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03101201U (en) * 1990-02-02 1991-10-22

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61267908A (en) * 1985-05-21 1986-11-27 Alps Electric Co Ltd Magnetic head and its production
CN108349814A (en) * 2015-11-11 2018-07-31 阿莫泰克有限公司 The manufacturing method of ferrite sheet and use its ferrite sheet
CN108349814B (en) * 2015-11-11 2021-09-28 阿莫泰克有限公司 Ferrite sheet manufacturing method and ferrite sheet using same

Also Published As

Publication number Publication date
JPS635802B2 (en) 1988-02-05

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