JPS6423503A - Magnetic circuit - Google Patents

Magnetic circuit

Info

Publication number
JPS6423503A
JPS6423503A JP62178893A JP17889387A JPS6423503A JP S6423503 A JPS6423503 A JP S6423503A JP 62178893 A JP62178893 A JP 62178893A JP 17889387 A JP17889387 A JP 17889387A JP S6423503 A JPS6423503 A JP S6423503A
Authority
JP
Japan
Prior art keywords
superconducting
magnetic flux
magnetic
head
electric current
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
JP62178893A
Other languages
English (en)
Inventor
Masafumi Kiguchi
Yasushi Suketa
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
Priority to JP62178893A priority Critical patent/JPS6423503A/ja
Priority to DE19883877078 priority patent/DE3877078T2/de
Priority to EP19880306548 priority patent/EP0300713B1/en
Publication of JPS6423503A publication Critical patent/JPS6423503A/ja
Pending 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
JP62178893A 1987-07-20 1987-07-20 Magnetic circuit Pending JPS6423503A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP62178893A JPS6423503A (en) 1987-07-20 1987-07-20 Magnetic circuit
DE19883877078 DE3877078T2 (de) 1987-07-20 1988-07-18 Magnetkreis.
EP19880306548 EP0300713B1 (en) 1987-07-20 1988-07-18 Magnetic circuit

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
JPS6423503A true JPS6423503A (en) 1989-01-26

Family

ID=16056536

Family Applications (1)

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

Country Status (3)

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

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 (en) 1989-01-25
EP0300713B1 (en) 1992-12-30
DE3877078T2 (de) 1993-04-29
DE3877078D1 (de) 1993-02-11

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