SG11201811453YA - Magnetic head - Google Patents

Magnetic head

Info

Publication number
SG11201811453YA
SG11201811453YA SG11201811453YA SG11201811453YA SG11201811453YA SG 11201811453Y A SG11201811453Y A SG 11201811453YA SG 11201811453Y A SG11201811453Y A SG 11201811453YA SG 11201811453Y A SG11201811453Y A SG 11201811453YA SG 11201811453Y A SG11201811453Y A SG 11201811453YA
Authority
SG
Singapore
Prior art keywords
international
magnetic head
pct
magnetisable
bristol
Prior art date
Application number
SG11201811453YA
Inventor
Roy Spiller
Original Assignee
Insurgo Media Services 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 Insurgo Media Services Ltd filed Critical Insurgo Media Services Ltd
Publication of SG11201811453YA publication Critical patent/SG11201811453YA/en

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
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G11B5/00813—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes
    • 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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/024—Erasing
    • 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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • 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
    • G11B5/325—Erasing heads using permanent magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Materials For Medical Uses (AREA)

Abstract

7 5p 14 FIG. 1 10 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 28 December 2017 (28.12.2017) WIP0 I PCT omit VIII Hot o III om OH 010 VIII mum lII ois (10) International Publication Number WO 2017/221014 Al (51) International Patent Classification: G11B 5/187 (2006.01) G11B 5/024 (2006.01) G11B 5/325 (2006.01) G11B 5/127 (2006.01) (21) International Application Number: PCT/GB2017/051824 (22) International Filing Date: 21 June 2017 (21.06.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 1610940.7 22 June 2016 (22.06.2016) GB (71) Applicant: INSURGO MEDIA SERVICES LTD [GB/GB]; Units 11 & 12, Roseheyworth Business Park, Abertillery Gwent NP13 1SP (GB). (72) Inventor: SPIELER, Roy; 25, Tynybedw Street, Rhondda, Treorchy West Glamorgan CF42 6RA (GB). (74) Agent: ASTRUM ELEMENTONE LIMITED; Tower House, Fairfax Street, Bristol Bristol BS1 3BN (GB). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) (54) Title: MAGNETIC HEAD (57) : The present invention provides a magnetic head for erasing data on a magnetic tape, the magnetic head comprising a body having an elongate magnet mounted thereon, and a plurality of magnetisable portions in magnetisable communication with the magnet, the plurality of magnetisable portions being aligned with the elongate magnet and forming at least a portion of a substantially planar external surface of the magnetic head. The present invention further provides a method and system for erasing data on a magnetic tape using said magnetic head
SG11201811453YA 2016-06-22 2017-06-21 Magnetic head SG11201811453YA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1610940.7A GB2557564B (en) 2016-06-22 2016-06-22 Magnetic head
PCT/GB2017/051824 WO2017221014A1 (en) 2016-06-22 2017-06-21 Magnetic head

Publications (1)

Publication Number Publication Date
SG11201811453YA true SG11201811453YA (en) 2019-01-30

Family

ID=56895235

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201811453YA SG11201811453YA (en) 2016-06-22 2017-06-21 Magnetic head

Country Status (15)

Country Link
US (1) US10475472B2 (en)
EP (1) EP3475946B1 (en)
JP (1) JP7112335B2 (en)
CN (1) CN109564763B (en)
AU (1) AU2017282087B2 (en)
BR (1) BR112018076745A2 (en)
CA (1) CA3028340A1 (en)
DE (1) DE112016001154B4 (en)
GB (1) GB2557564B (en)
MX (1) MX2018016421A (en)
RU (1) RU2749334C2 (en)
SA (1) SA518400722B1 (en)
SG (1) SG11201811453YA (en)
WO (1) WO2017221014A1 (en)
ZA (1) ZA201900380B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11837263B1 (en) 2022-08-18 2023-12-05 International Business Machines Corporation Tape erase element included in a tape erase device to erase a tape medium

Family Cites Families (42)

* Cited by examiner, † Cited by third party
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CA606362A (en) * 1960-10-04 Armour Research Foundation Of Illinois Institute Of Technology Magnetic transducer head assembly
US3171107A (en) * 1961-07-03 1965-02-23 Ibm Wide-record narrow-read magnetic head
CH407573A (en) * 1962-10-22 1966-02-15 Telefunken Patent Multi-track erase head
DE2045073B2 (en) * 1970-09-11 1976-09-02 Süddeutsches mechanisches Werk Freiherr von Hornstein KG, 8191 Münsing MAGNETIC HEAD FOR CASSETTE TAPE RECEIVERS OR OTHER TAPE RECORDERS AND TAPE PLAYBACK DEVICES
DE2261450B2 (en) * 1972-12-15 1977-08-25 Agfa-Gevaert Ag, 5090 Leverkusen ERASING DEVICE FOR MOVING MAGNETIC RECORDING MEDIA
JPS5022614A (en) * 1973-06-26 1975-03-11
JPS5325410A (en) * 1976-08-20 1978-03-09 Sony Corp Magnetic head
JPS5589913A (en) * 1978-12-28 1980-07-08 Pioneer Electronic Corp Magnetic head for eraseing
JPS55122217A (en) * 1979-03-08 1980-09-19 Toshiba Corp Erasing head
JPS55146627A (en) 1979-05-04 1980-11-15 Victor Co Of Japan Ltd Magnetic head for erasure
US4286295A (en) * 1979-06-22 1981-08-25 George Ipolyi Device for erasing visible recorded signals from a recording medium having oriented magnetic components
JPS5656018U (en) * 1979-10-02 1981-05-15
JPS57111803A (en) * 1980-12-26 1982-07-12 Alps Electric Co Ltd Erasing head
JPS5860321A (en) * 1981-10-07 1983-04-09 Omron Tateisi Electronics Co Temperature controller
JPS5860321U (en) 1981-10-19 1983-04-23 ソニー株式会社 magnetic erase head
JPS5946432A (en) 1982-09-09 1984-03-15 Matsushita Electric Ind Co Ltd Fan motor mounting device for air conditioner
SU1094054A1 (en) * 1982-12-17 1984-05-23 Всесоюзный научно-исследовательский институт радиовещательного приема и акустики им.А.С.Попова Versions of erasing magnetic head
JPS59146432A (en) * 1983-02-10 1984-08-22 Matsushita Electric Ind Co Ltd Ac erasing head
JPH0740335B2 (en) * 1983-12-27 1995-05-01 日本碍子株式会社 Method for manufacturing core for magnetic head
US4683509A (en) * 1984-06-15 1987-07-28 Odetics, Inc. High efficiency magnetic erase head
JPS6233316A (en) * 1985-08-02 1987-02-13 Matsushita Electric Ind Co Ltd Permanent magnet erasure head
JPH01264612A (en) 1988-04-15 1989-10-20 Otani Denki Kk Erasing head and manufacture of erasing head
SU1661831A1 (en) * 1989-02-03 1991-07-07 Предприятие П/Я В-2867 Erasing magnetic head
JPH05325141A (en) * 1992-05-18 1993-12-10 Hitachi Electron Eng Co Ltd Demagnetization head for magnetic disc
US5331493A (en) * 1992-08-21 1994-07-19 Minnesota Mining And Manufacturing Company Bidirectional thin-film magnetoresistive tape head assembly
JPH07282417A (en) 1994-04-13 1995-10-27 Sony Corp Erasing head
JP3021201U (en) * 1995-08-01 1996-02-20 嘉徳 北村 Erasing head
JPH11339206A (en) * 1998-05-27 1999-12-10 Funai Electric Co Ltd Magnetic recording and reproducing device
JP3539348B2 (en) * 2000-05-10 2004-07-07 船井電機株式会社 Erasing head gap forming method and erasing head
JP4327372B2 (en) * 2001-01-30 2009-09-09 オタリ株式会社 Magnetic tape degausser
JP2005085443A (en) * 2003-09-11 2005-03-31 Sony Corp Thin film magnetic head and its manufacturing method
US6999269B2 (en) * 2003-09-17 2006-02-14 Imation Corp. Two-sided data storage tape with servo information on both sides of the tape
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US7414811B2 (en) * 2005-08-26 2008-08-19 International Business Machines Corporation Magnetic head having three modules
JP2007250112A (en) * 2006-03-17 2007-09-27 Fujifilm Corp Dc magnet erase head and servo writer, and method of manufacturing magnetic tape
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Also Published As

Publication number Publication date
AU2017282087B2 (en) 2022-05-19
AU2017282087A1 (en) 2019-01-17
RU2749334C2 (en) 2021-06-08
EP3475946C0 (en) 2024-07-24
EP3475946A1 (en) 2019-05-01
EP3475946B1 (en) 2024-07-24
NZ749850A (en) 2023-09-29
DE112016001154B4 (en) 2023-10-12
GB2557564A (en) 2018-06-27
RU2018147382A3 (en) 2020-09-24
BR112018076745A2 (en) 2019-03-26
GB201610940D0 (en) 2016-08-03
WO2017221014A1 (en) 2017-12-28
CN109564763A (en) 2019-04-02
CN109564763B (en) 2021-08-17
SA518400722B1 (en) 2021-11-25
GB2557564B (en) 2020-10-28
CA3028340A1 (en) 2017-12-28
US20190147906A1 (en) 2019-05-16
RU2018147382A (en) 2020-07-22
JP2019519060A (en) 2019-07-04
JP7112335B2 (en) 2022-08-03
MX2018016421A (en) 2019-08-12
US10475472B2 (en) 2019-11-12
ZA201900380B (en) 2020-05-27
DE112016001154T5 (en) 2018-03-01

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