CA956088A - Method for making magnetic head composed of ferrite - Google Patents

Method for making magnetic head composed of ferrite

Info

Publication number
CA956088A
CA956088A CA114,354A CA114354A CA956088A CA 956088 A CA956088 A CA 956088A CA 114354 A CA114354 A CA 114354A CA 956088 A CA956088 A CA 956088A
Authority
CA
Canada
Prior art keywords
ferrite
magnetic head
making magnetic
head composed
making
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.)
Expired
Application number
CA114,354A
Other languages
English (en)
Other versions
CA114354S (en
Inventor
Masanari Mikoda
Tadashi Hikino
Mikio Higashi
Koichi Kawata
Akio Yamauchi
Shigeru Hayakawa
Sadao Masuoka
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
Priority claimed from JP4832670A external-priority patent/JPS5128013B1/ja
Priority claimed from JP4833370A external-priority patent/JPS5129404B1/ja
Priority claimed from JP4833670A external-priority patent/JPS5010134B1/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of CA956088A publication Critical patent/CA956088A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • 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
    • 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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/23—Gap features
    • G11B5/235—Selection of material for gap filler

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Magnetic Heads (AREA)
CA114,354A 1970-06-02 1971-05-31 Method for making magnetic head composed of ferrite Expired CA956088A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP4832670A JPS5128013B1 (enrdf_load_stackoverflow) 1970-06-02 1970-06-02
JP4833370A JPS5129404B1 (enrdf_load_stackoverflow) 1970-06-02 1970-06-02
JP4833670A JPS5010134B1 (enrdf_load_stackoverflow) 1970-06-02 1970-06-02

Publications (1)

Publication Number Publication Date
CA956088A true CA956088A (en) 1974-10-15

Family

ID=27293264

Family Applications (1)

Application Number Title Priority Date Filing Date
CA114,354A Expired CA956088A (en) 1970-06-02 1971-05-31 Method for making magnetic head composed of ferrite

Country Status (4)

Country Link
CA (1) CA956088A (enrdf_load_stackoverflow)
FR (1) FR2093978B1 (enrdf_load_stackoverflow)
GB (1) GB1351820A (enrdf_load_stackoverflow)
NL (1) NL7107577A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR2093978B1 (enrdf_load_stackoverflow) 1973-06-08
DE2127806B2 (de) 1976-02-12
DE2127806A1 (de) 1972-02-10
FR2093978A1 (enrdf_load_stackoverflow) 1972-02-04
NL7107577A (enrdf_load_stackoverflow) 1971-12-06
GB1351820A (en) 1974-05-01

Similar Documents

Publication Publication Date Title
CA938097A (en) Control for bias of magnetic brush and method
CA948078A (en) Method of making a magnetic powder
CA952771A (en) Method of producing magnetic recording tape
CA950803A (en) Single crystal ferrite magnetic head
CA939055A (en) Magnetic erasing head and method of making the same
CA944544A (en) Method of making a multi-channel magnetic head
CA955050A (en) Method of making a multi-channel magnetic head
JPS5550604A (en) Method of manufacturing ferrite magnetic material
GB1347333A (en) Method of magnetisation
CA956088A (en) Method for making magnetic head composed of ferrite
CA972932A (en) Method of producing magnetic core parts
CA929676A (en) Method of reproducing magnetization pattern
CA1034255A (en) Magnetic read-record head and method of making same
CA952696A (en) Method of manufacturing a magnetic head
CA953484A (en) Method of making a magnetic head
CA962439A (en) Method of making a multi-channel magnetic head
CA949777A (en) Mn-zn ferrites for magnetic heads
CA922097A (en) Method of manufacturing multi-element magnetic head
CA851920A (en) Method of manufacturing pole-pieces for magnetic heads
CA934616A (en) Method of manufacturing guide materials of magnetic recording
CA954626A (en) Magnetic head and method of manufacture thereof
CA834098A (en) Method of forming magnetic ferrite films
CA939803A (en) Method of duplicating magnetic tape
CA937387A (en) Method of making multi-channel dual-gap magnetic head
CA858456A (en) Method of manufacture and composition for magnetic cores