JPS54118813A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS54118813A
JPS54118813A JP2561178A JP2561178A JPS54118813A JP S54118813 A JPS54118813 A JP S54118813A JP 2561178 A JP2561178 A JP 2561178A JP 2561178 A JP2561178 A JP 2561178A JP S54118813 A JPS54118813 A JP S54118813A
Authority
JP
Japan
Prior art keywords
core
materials
abrasion resistance
conversion efficiency
impairing
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
JP2561178A
Other languages
Japanese (ja)
Inventor
Hiroaki Kato
Junji Hamana
Akio Sakai
Yoshio Kawakami
Atsushi Goto
Saichiro Amano
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.)
Canon Inc
Canon Electronics Inc
Original Assignee
Canon Inc
Canon Electronics Inc
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 Canon Inc, Canon Electronics Inc filed Critical Canon Inc
Priority to JP2561178A priority Critical patent/JPS54118813A/en
Priority to DE19792907806 priority patent/DE2907806A1/en
Publication of JPS54118813A publication Critical patent/JPS54118813A/en
Priority to US06/230,107 priority patent/US4368496A/en
Priority to US06/372,556 priority patent/US4413295A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
    • 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
    • G11B5/10—Structure or manufacture of housings or shields for heads
    • G11B5/105—Mounting of head within housing or assembling of head and housing
    • 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
    • G11B5/147—Structure or manufacture of heads, e.g. inductive with cores being composed of metal sheets, i.e. laminated cores with cores composed of isolated magnetic layers, e.g. sheets
    • 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
    • G11B5/21—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features the pole pieces being of ferrous sheet metal or other magnetic layers

Abstract

PURPOSE:To improve abrasion resistance without impairing electromagnetic conversion efficiency by depositing insulation materials of higher abrasion resistance than core materials on the plural core materials forming core halves. CONSTITUTION:Electric insulation materials 10... of higher abrasion resestance than core materails are deposited sufficiently thinnly n the surfaces of the core materials 1a, 1b... of high magnetic permeability material such as permalloy or the like of a constant thickness and the core materials 1a, 1b... are laminated, whereby a core half 1 is made. When the core 1 is butted to the similar core half 2 to form the magnetic head,the head of good abrasion resistance may be obrained without impairing the electric conversion efficiency by the insulation materials 10... near the gap face.
JP2561178A 1978-03-01 1978-03-07 Magnetic head Pending JPS54118813A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2561178A JPS54118813A (en) 1978-03-07 1978-03-07 Magnetic head
DE19792907806 DE2907806A1 (en) 1978-03-01 1979-02-28 MAGNETIC HEAD
US06/230,107 US4368496A (en) 1978-03-01 1981-01-29 Magnetic head
US06/372,556 US4413295A (en) 1978-03-01 1982-04-28 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2561178A JPS54118813A (en) 1978-03-07 1978-03-07 Magnetic head

Publications (1)

Publication Number Publication Date
JPS54118813A true JPS54118813A (en) 1979-09-14

Family

ID=12170675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2561178A Pending JPS54118813A (en) 1978-03-01 1978-03-07 Magnetic head

Country Status (1)

Country Link
JP (1) JPS54118813A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4325956Y1 (en) * 1965-01-20 1968-10-30
JPS52155514A (en) * 1976-06-21 1977-12-24 Hitachi Ltd Magnetic head

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4325956Y1 (en) * 1965-01-20 1968-10-30
JPS52155514A (en) * 1976-06-21 1977-12-24 Hitachi Ltd Magnetic head

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