JPS5641516A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS5641516A
JPS5641516A JP11851579A JP11851579A JPS5641516A JP S5641516 A JPS5641516 A JP S5641516A JP 11851579 A JP11851579 A JP 11851579A JP 11851579 A JP11851579 A JP 11851579A JP S5641516 A JPS5641516 A JP S5641516A
Authority
JP
Japan
Prior art keywords
groove
core
magnetic
high frequency
winding window
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
JP11851579A
Other languages
Japanese (ja)
Inventor
Norio Miyatake
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 JP11851579A priority Critical patent/JPS5641516A/en
Publication of JPS5641516A publication Critical patent/JPS5641516A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Heads (AREA)

Abstract

PURPOSE: To improve the magnetic characteristic of the magnetic head to high frequency though its structure is simple, by forming a groove along the direction in which the magnetic flux flows on the whole in the core.
CONSTITUTION: A groove 11 is provided to the upper face or the lower face, or both the upper and lower surfaces of the head core 10 made of alloy metal such as sendast, etc., so that the winding window 12 is surrounded. When providing the groove 11 on the core 10, the method by which the recess part is provided by scanning the circumference of the winding window 12 with the laser light whose luminous flux has been stopped down to the extent of the groove width W and evaporating the metal of the part irradiated by the light, the photoetching method, the electrospark machining method, etc. are available. In any method, the narrower the groove width W and the groove interval W' are made, and the deeper the groove is made within the allowance of strength, the more satisfactory the characteritic in high frequency is obtained. In this regard, it is not always necessary to make the groove 11 a closed loop, and it is allowable that the groove is disconnected in the vicinity of the magnetic gap 3.
COPYRIGHT: (C)1981,JPO&Japio
JP11851579A 1979-09-13 1979-09-13 Magnetic head Pending JPS5641516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11851579A JPS5641516A (en) 1979-09-13 1979-09-13 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11851579A JPS5641516A (en) 1979-09-13 1979-09-13 Magnetic head

Publications (1)

Publication Number Publication Date
JPS5641516A true JPS5641516A (en) 1981-04-18

Family

ID=14738530

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11851579A Pending JPS5641516A (en) 1979-09-13 1979-09-13 Magnetic head

Country Status (1)

Country Link
JP (1) JPS5641516A (en)

Similar Documents

Publication Publication Date Title
JPS55117723A (en) Magnetic head
JPS5641516A (en) Magnetic head
JPS57130236A (en) Card with magnetic picture
JPS5573918A (en) Magnetic head
JPS54151876A (en) Magnetic field impressing device
JPS5317903A (en) Manufacturing method of stator iron core
JPS5428111A (en) Magnetic head
JPS52130616A (en) Magnetic recording method
JPS5385414A (en) Narrow track-multielement magnetic head and its manufacture
JPS5392423A (en) Core for current transformer
JPS53110511A (en) Mangetic core for metal magnetic head
JPS53140016A (en) Magnetic head
JPS5389409A (en) Manufacture of magnetic head core of narrow track
JPS544111A (en) Magnetic head
JPS5349467A (en) Winding crown with jewel and method of manufacturing the same
JPS53107811A (en) Magnetic head core
JPS57144510A (en) Structure of end face of optical conductor
JPS53121691A (en) Laminated electromagnet for mass spectrometer
Fedorishcheva et al. Surface Induction in a Massive Body Under the Pole of a Bar Electromagnet
JPS5365714A (en) Production of magnetic head core gap
JPS53133420A (en) Magnetic head and production of the same
JPS53118112A (en) Production of magnetic head
JPS531125A (en) Wear resistant alloy of high permeability
JPS5651017A (en) Magnetic head
JPS5593526A (en) Erasing magnetic head