DE3267742D1 - Magnetic transducer - Google Patents

Magnetic transducer

Info

Publication number
DE3267742D1
DE3267742D1 DE8282101909T DE3267742T DE3267742D1 DE 3267742 D1 DE3267742 D1 DE 3267742D1 DE 8282101909 T DE8282101909 T DE 8282101909T DE 3267742 T DE3267742 T DE 3267742T DE 3267742 D1 DE3267742 D1 DE 3267742D1
Authority
DE
Germany
Prior art keywords
magnetic transducer
transducer
magnetic
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
DE8282101909T
Other languages
English (en)
Inventor
Isao Yasuda
Kazuaki Koyama
Yoshihiko Kawai
Yorinobu Yoshisato
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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
Priority claimed from JP3362681U external-priority patent/JPH0138724Y2/ja
Priority claimed from JP6811481U external-priority patent/JPS57180830U/ja
Priority claimed from JP18602681A external-priority patent/JPH0234084B2/ja
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Application granted granted Critical
Publication of DE3267742D1 publication Critical patent/DE3267742D1/de
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
    • 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
    • G11B5/255—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for protection against wear
    • 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
    • G11B5/1274—Structure or manufacture of heads, e.g. inductive with "composite" cores, i.e. cores composed in some parts of magnetic particles and in some other parts of magnetic metal layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE8282101909T 1981-03-10 1982-03-10 Magnetic transducer Expired DE3267742D1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3362681U JPH0138724Y2 (de) 1981-03-10 1981-03-10
JP6811481U JPS57180830U (de) 1981-05-11 1981-05-11
JP18602681A JPH0234084B2 (ja) 1981-11-18 1981-11-18 Jikihetsudo

Publications (1)

Publication Number Publication Date
DE3267742D1 true DE3267742D1 (en) 1986-01-16

Family

ID=27288151

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282101909T Expired DE3267742D1 (en) 1981-03-10 1982-03-10 Magnetic transducer

Country Status (4)

Country Link
EP (1) EP0061069B1 (de)
KR (1) KR850001445B1 (de)
AU (1) AU548168B2 (de)
DE (1) DE3267742D1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4697217A (en) * 1982-10-13 1987-09-29 Sanyo Electric Co., Ltd. Magnetic head having a main core of sheet amorphous magnetic material
CA1236212A (en) * 1983-12-30 1988-05-03 Heikichi Sato Magnetic transducer head with slanted thin film
DE3433750A1 (de) * 1984-09-14 1986-05-22 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth Magnetkopf und verfahren zu seiner herstellung
EP0650628B1 (de) * 1992-07-17 1997-09-24 Ampex Systems Corporation Zusammengesetzter metall- und ferritwandlerkopf und herstellungsverfahren dafür
EP0768640A3 (de) * 1995-10-13 1998-11-11 Ampex Corporation Magnetkopf mit kleinem Kern und nicht magnetischem Seitenträger

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1474335A1 (de) * 1965-11-12 1969-07-17 Grundig Emv Magnetkopf fuer schmale Spurbreiten,insbesondere Videokopf
GB1248072A (en) * 1967-10-18 1971-09-29 Sony Corp Magnetic head
US4017899A (en) * 1974-10-29 1977-04-12 Spin Physics, Inc. Single-track video ferrite record/reproduce head and manufacturing method therefor
US4170059A (en) * 1975-09-22 1979-10-09 Ampex Corporation Method of manufacturing a magnetic transducer for narrow track recording and playback
JPS55160321A (en) * 1979-06-01 1980-12-13 Hitachi Ltd Magnetic head
DE3103767C2 (de) * 1980-02-04 1986-12-04 Sanyo Electric Co., Ltd., Moriguchi, Osaka Magnetkopf

Also Published As

Publication number Publication date
EP0061069B1 (de) 1985-12-04
KR830009557A (ko) 1983-12-22
EP0061069A1 (de) 1982-09-29
AU8122082A (en) 1982-09-16
KR850001445B1 (ko) 1985-10-05
AU548168B2 (en) 1985-11-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee