DE3431457A1 - Magnetkopf fuer videorecorder - Google Patents

Magnetkopf fuer videorecorder

Info

Publication number
DE3431457A1
DE3431457A1 DE3431457A DE3431457A DE3431457A1 DE 3431457 A1 DE3431457 A1 DE 3431457A1 DE 3431457 A DE3431457 A DE 3431457A DE 3431457 A DE3431457 A DE 3431457A DE 3431457 A1 DE3431457 A1 DE 3431457A1
Authority
DE
Germany
Prior art keywords
phase particles
magnetic head
super
head according
alloy
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
DE3431457A
Other languages
German (de)
English (en)
Other versions
DE3431457C2 (https=
Inventor
Katsuo Niigata Odahara
Takashi Takizawa
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.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of DE3431457A1 publication Critical patent/DE3431457A1/de
Application granted granted Critical
Publication of DE3431457C2 publication Critical patent/DE3431457C2/de
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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15358—Making agglomerates therefrom, e.g. by pressing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15358—Making agglomerates therefrom, e.g. by pressing
    • H01F1/15366—Making agglomerates therefrom, e.g. by pressing using a binder

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Soft Magnetic Materials (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Magnetic Heads (AREA)
DE3431457A 1983-08-27 1984-08-27 Magnetkopf fuer videorecorder Granted DE3431457A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58155727A JPS6050605A (ja) 1983-08-27 1983-08-27 Ｖｔｒ用磁気ヘツド

Publications (2)

Publication Number Publication Date
DE3431457A1 true DE3431457A1 (de) 1985-03-14
DE3431457C2 DE3431457C2 (https=) 1987-12-23

Family

ID=15612142

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3431457A Granted DE3431457A1 (de) 1983-08-27 1984-08-27 Magnetkopf fuer videorecorder

Country Status (4)

Country Link
JP (1) JPS6050605A (https=)
KR (1) KR890003180B1 (https=)
DE (1) DE3431457A1 (https=)
GB (1) GB2147608B (https=)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR900007666B1 (ko) * 1984-11-12 1990-10-18 알프스 덴기 가부시기가이샤 자기헤드용 비정질 합금
US5164025A (en) * 1988-11-02 1992-11-17 Alps Electric Co., Ltd. Soft magnetic alloy film and a magnetic head using such soft a magnetic alloy film
KR920001939B1 (ko) * 1988-11-02 1992-03-07 알프스 덴기 가부시기가이샤 연자성합금막 및 그 연자성합금막을 사용한 자기헤드
KR920003999B1 (ko) * 1989-03-08 1992-05-21 알프스 덴기 가부시기가이샤 연자성 합금막
GB2232165A (en) * 1989-03-22 1990-12-05 Cookson Group Plc Magnetic compositions
JP2635422B2 (ja) * 1989-10-17 1997-07-30 アルプス電気株式会社 磁気ヘッド
EP0435680B1 (en) * 1989-12-28 1995-04-05 Kabushiki Kaisha Toshiba Fe-based soft magnetic alloy, method of producing same and magnetic core made of same
JPH1196520A (ja) * 1997-09-17 1999-04-09 Fujitsu Ltd 磁気ヘッド及びその製造方法並びに該磁気ヘッドを備えた磁気記録装置
JP4842746B2 (ja) * 2006-09-20 2011-12-21 オリンパス株式会社 基板搬送装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2116291B2 (de) * 1970-04-03 1977-01-20 RCA Corp., New York, N.Y. (V.StA.) Weichmagnetischer werkstoff fuer einen magnetkopf und verfahren zu seiner herstellung
DE3035433A1 (de) * 1979-09-21 1981-04-02 Hitachi Metals, Ltd., Tokyo Ferromagnetische amorphe legierung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4365994A (en) * 1979-03-23 1982-12-28 Allied Corporation Complex boride particle containing alloys

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2116291B2 (de) * 1970-04-03 1977-01-20 RCA Corp., New York, N.Y. (V.StA.) Weichmagnetischer werkstoff fuer einen magnetkopf und verfahren zu seiner herstellung
DE3035433A1 (de) * 1979-09-21 1981-04-02 Hitachi Metals, Ltd., Tokyo Ferromagnetische amorphe legierung

Also Published As

Publication number Publication date
KR850002628A (ko) 1985-05-15
KR890003180B1 (ko) 1989-08-25
GB2147608B (en) 1986-07-30
JPS6050605A (ja) 1985-03-20
DE3431457C2 (https=) 1987-12-23
GB2147608A (en) 1985-05-15
GB8421725D0 (en) 1984-10-03

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8128 New person/name/address of the agent

Representative=s name: KLUNKER, H., DIPL.-ING. DR.RER.NAT. SCHMITT-NILSON

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee