JPS57127909A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS57127909A
JPS57127909A JP56013047A JP1304781A JPS57127909A JP S57127909 A JPS57127909 A JP S57127909A JP 56013047 A JP56013047 A JP 56013047A JP 1304781 A JP1304781 A JP 1304781A JP S57127909 A JPS57127909 A JP S57127909A
Authority
JP
Japan
Prior art keywords
magnetic head
ceramic
magnetic circuit
magnetic
thermal expansion
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
JP56013047A
Other languages
Japanese (ja)
Other versions
JPH0156448B2 (en
Inventor
Kiyoshi Hanekawa
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP56013047A priority Critical patent/JPS57127909A/en
Publication of JPS57127909A publication Critical patent/JPS57127909A/en
Publication of JPH0156448B2 publication Critical patent/JPH0156448B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Magnetic Heads (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

PURPOSE:To increase the reliability as well as wear resistance, by using a ceramic of nonmagnetic insulation material having the same thermal expansion coefficient substantially as that of a sintered oxidized ferromagnetic substance constituting a magnetic circuit. CONSTITUTION:A magnetic head is provided with magnetic circuit elements 2, 3 of sintered oxidized ferromagnetic substance and a component 4 of ceramic material other than magnetic head air gap filler, and the components of the ceramic member bond the magnetic circuit elements 2, 3 mutually. The ceramic material is made of compound of Ca2Ti9O20 and has crystal structure of it. The magnetic head can effectively be reinforced with high reliability, by using a ceramic of nonmagnetic insulation material having the same thermal expansion coefficient substantially as that of a sintered oxidized ferromagnetic magerial constituting the magnetic circuit of the magnetic head.
JP56013047A 1981-02-02 1981-02-02 Magnetic head Granted JPS57127909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56013047A JPS57127909A (en) 1981-02-02 1981-02-02 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56013047A JPS57127909A (en) 1981-02-02 1981-02-02 Magnetic head

Publications (2)

Publication Number Publication Date
JPS57127909A true JPS57127909A (en) 1982-08-09
JPH0156448B2 JPH0156448B2 (en) 1989-11-30

Family

ID=11822199

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56013047A Granted JPS57127909A (en) 1981-02-02 1981-02-02 Magnetic head

Country Status (1)

Country Link
JP (1) JPS57127909A (en)

Also Published As

Publication number Publication date
JPH0156448B2 (en) 1989-11-30

Similar Documents

Publication Publication Date Title
JPS5415126A (en) Dc to dc converter
JPS5250598A (en) Rare earth-cobalt magnet
JPS5370808A (en) Magnetic head
DE3581715D1 (en) MAGNETIC HEAD WITH CORE PARTS MADE OF FERROMAGNETIC AMORPHEM METAL.
JPS57127909A (en) Magnetic head
JPS51138421A (en) Method of fabricating magnetic head
JPS5552524A (en) Manufacture of magnetic head
JPS5764330A (en) Magnetic recording medium
JPS5329527A (en) Rolled core with gap
JPS5460913A (en) Magnetic head
JPS57120220A (en) Magnetic head
JPS57127915A (en) Magnetic head
JPS5475014A (en) Voice coil type linear motor
JPS57127913A (en) Magnetic head
Henrich SURFACE ELECTRONIC STRUCTURE OF MGO AND AL 2 O 3 CERAMICS
JPS6413207A (en) Thin film magnetic head
JPS5279294A (en) Electric wave absorbent
JPS57197884A (en) Composite substrate
JPS5440619A (en) Magnetic head of thin film
JPS53112712A (en) Magnetic head core
JPS6450204A (en) Composite type magnetic head and its manufacture
JPS5671812A (en) Manufacture for magnetic head
JPS5423901A (en) Wound armature with double insulation structure
JPS57203226A (en) Thin film magnetic reluctance head
CH647120GA3 (en)