GB2147608B - Magnetic head for video tape recorder - Google Patents

Magnetic head for video tape recorder

Info

Publication number
GB2147608B
GB2147608B GB08421725A GB8421725A GB2147608B GB 2147608 B GB2147608 B GB 2147608B GB 08421725 A GB08421725 A GB 08421725A GB 8421725 A GB8421725 A GB 8421725A GB 2147608 B GB2147608 B GB 2147608B
Authority
GB
United Kingdom
Prior art keywords
magnetic head
video tape
tape recorder
recorder
video
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
GB08421725A
Other languages
English (en)
Other versions
GB2147608A (en
GB8421725D0 (en
Inventor
Takashi Takizawa
Katsuo Odahara
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 GB8421725D0 publication Critical patent/GB8421725D0/en
Publication of GB2147608A publication Critical patent/GB2147608A/en
Application granted granted Critical
Publication of GB2147608B publication Critical patent/GB2147608B/en
Expired 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)
GB08421725A 1983-08-27 1984-08-28 Magnetic head for video tape recorder Expired GB2147608B (en)

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 (3)

Publication Number Publication Date
GB8421725D0 GB8421725D0 (en) 1984-10-03
GB2147608A GB2147608A (en) 1985-05-15
GB2147608B true GB2147608B (en) 1986-07-30

Family

ID=15612142

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08421725A Expired GB2147608B (en) 1983-08-27 1984-08-28 Magnetic head for video tape recorder

Country Status (4)

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

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
KR920001939B1 (ko) * 1988-11-02 1992-03-07 알프스 덴기 가부시기가이샤 연자성합금막 및 그 연자성합금막을 사용한 자기헤드
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
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
DE69018422T2 (de) * 1989-12-28 1995-10-19 Toshiba Kawasaki Kk Auf Eisen basierende weichmagnetische Legierung, ihr Herstellungsverfahren und Magnetkern daraus.
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

Family Cites Families (2)

* 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
JPS5644752A (en) * 1979-09-21 1981-04-24 Hitachi Ltd Ferromagnetic amorphous alloy

Also Published As

Publication number Publication date
DE3431457A1 (de) 1985-03-14
DE3431457C2 (fr) 1987-12-23
GB2147608A (en) 1985-05-15
KR890003180B1 (ko) 1989-08-25
GB8421725D0 (en) 1984-10-03
JPS6050605A (ja) 1985-03-20
KR850002628A (ko) 1985-05-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee