JPS54151424A - Magnetic head and production thereof - Google Patents

Magnetic head and production thereof

Info

Publication number
JPS54151424A
JPS54151424A JP6015378A JP6015378A JPS54151424A JP S54151424 A JPS54151424 A JP S54151424A JP 6015378 A JP6015378 A JP 6015378A JP 6015378 A JP6015378 A JP 6015378A JP S54151424 A JPS54151424 A JP S54151424A
Authority
JP
Japan
Prior art keywords
sio
2mgo
ferrite
magnetic head
film
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
JP6015378A
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 JP6015378A priority Critical patent/JPS54151424A/en
Publication of JPS54151424A publication Critical patent/JPS54151424A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To achieve the improvement in high frequency reproduction sensitivity by interposing a for sterite layer as a gap spacer between the gap opposing faces of core materials in the magnetic head.
CONSTITUTION: Cores 2, 3 formed with a 2MgO.SiO2 film 1 are bonded by using glass 4 with the film 1 being held sandwiched as a spacer, wherein 2NgO.SiO2 will not deteriorate at up to 1000°C, hence bonding by the use of high melting point glass of high mechanical strength is feasible. The coefficient of thermal expansion of 2MgO.SiO2 is equal to that of ferrite and its Vickers hardness is higher than that of ferrite, thus it can sufficiently satisfy mechanical strength, too. This enables the head of superior high-frequency reproduction sensitivity to be obtained in high density recording wherein the shortest recording wavelength is 1μm or under.
COPYRIGHT: (C)1979,JPO&Japio
JP6015378A 1978-05-19 1978-05-19 Magnetic head and production thereof Pending JPS54151424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6015378A JPS54151424A (en) 1978-05-19 1978-05-19 Magnetic head and production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6015378A JPS54151424A (en) 1978-05-19 1978-05-19 Magnetic head and production thereof

Publications (1)

Publication Number Publication Date
JPS54151424A true JPS54151424A (en) 1979-11-28

Family

ID=13133912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6015378A Pending JPS54151424A (en) 1978-05-19 1978-05-19 Magnetic head and production thereof

Country Status (1)

Country Link
JP (1) JPS54151424A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5182535A (en) * 1989-12-19 1993-01-26 Dhyanchand P John Summing transformer core for star-delta inverter having a separate secondary winding for each primary winding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5182535A (en) * 1989-12-19 1993-01-26 Dhyanchand P John Summing transformer core for star-delta inverter having a separate secondary winding for each primary winding

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