DE3877078T2 - Magnetkreis. - Google Patents

Magnetkreis.

Info

Publication number
DE3877078T2
DE3877078T2 DE19883877078 DE3877078T DE3877078T2 DE 3877078 T2 DE3877078 T2 DE 3877078T2 DE 19883877078 DE19883877078 DE 19883877078 DE 3877078 T DE3877078 T DE 3877078T DE 3877078 T2 DE3877078 T2 DE 3877078T2
Authority
DE
Germany
Prior art keywords
magnetic circle
circle
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 - Fee Related
Application number
DE19883877078
Other languages
English (en)
Other versions
DE3877078D1 (de
Inventor
Masashi Kiguchi
Hirofumi Hitachi Daini Sukeda
Takeshi Nakao
Makoto Saito
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of DE3877078D1 publication Critical patent/DE3877078D1/de
Publication of DE3877078T2 publication Critical patent/DE3877078T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
    • 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
    • G11B5/245—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 controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/44—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using super-conductive elements, e.g. cryotron
    • 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
    • G11B5/11—Shielding of head against electric or magnetic fields
DE19883877078 1987-07-20 1988-07-18 Magnetkreis. Expired - Fee Related DE3877078T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62178893A JPS6423503A (en) 1987-07-20 1987-07-20 Magnetic circuit

Publications (2)

Publication Number Publication Date
DE3877078D1 DE3877078D1 (de) 1993-02-11
DE3877078T2 true DE3877078T2 (de) 1993-04-29

Family

ID=16056536

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883877078 Expired - Fee Related DE3877078T2 (de) 1987-07-20 1988-07-18 Magnetkreis.

Country Status (3)

Country Link
EP (1) EP0300713B1 (de)
JP (1) JPS6423503A (de)
DE (1) DE3877078T2 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091702A (en) * 1958-03-31 1963-05-28 Little Inc A Magnetic control device having superconductive gates
US3094628A (en) * 1958-10-01 1963-06-18 Thompson Ramo Wooldridge Inc Cryogenic switching devices utilizing meissner effect to control superconductivity
US3310767A (en) * 1963-05-29 1967-03-21 Gen Electric Power cryotron
DE1564679A1 (de) * 1966-07-29 1970-02-12 Siemens Ag Supraleitendes Schaltelement

Also Published As

Publication number Publication date
EP0300713A1 (de) 1989-01-25
JPS6423503A (en) 1989-01-26
EP0300713B1 (de) 1992-12-30
DE3877078D1 (de) 1993-02-11

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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