BE746382A - METHOD OF MANUFACTURING A MAGNETOGRAM SUPPORT AND APPARATUS FOR IMPLEMENTING THIS PROCESS - Google Patents

METHOD OF MANUFACTURING A MAGNETOGRAM SUPPORT AND APPARATUS FOR IMPLEMENTING THIS PROCESS

Info

Publication number
BE746382A
BE746382A BE746382DA BE746382A BE 746382 A BE746382 A BE 746382A BE 746382D A BE746382D A BE 746382DA BE 746382 A BE746382 A BE 746382A
Authority
BE
Belgium
Prior art keywords
magnetogram
implementing
manufacturing
support
magnetogram support
Prior art date
Application number
Other languages
French (fr)
Inventor
H J Krall
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of BE746382A publication Critical patent/BE746382A/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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/842—Coating a support with a liquid magnetic dispersion
    • G11B5/845—Coating a support with a liquid magnetic dispersion in a magnetic field
BE746382D 1969-02-24 1970-02-23 METHOD OF MANUFACTURING A MAGNETOGRAM SUPPORT AND APPARATUS FOR IMPLEMENTING THIS PROCESS BE746382A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80140969A 1969-02-24 1969-02-24

Publications (1)

Publication Number Publication Date
BE746382A true BE746382A (en) 1970-07-31

Family

ID=25181013

Family Applications (1)

Application Number Title Priority Date Filing Date
BE746382D BE746382A (en) 1969-02-24 1970-02-23 METHOD OF MANUFACTURING A MAGNETOGRAM SUPPORT AND APPARATUS FOR IMPLEMENTING THIS PROCESS

Country Status (5)

Country Link
US (1) US3627580A (en)
BE (1) BE746382A (en)
DE (1) DE2008325B2 (en)
FR (1) FR2033015A5 (en)
GB (1) GB1291366A (en)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5242363B2 (en) * 1973-03-20 1977-10-24
US4281043A (en) * 1973-10-31 1981-07-28 Graham Magnetics, Inc. Polymodal magnetic recording media and compositions useful therein
US4208447A (en) * 1978-06-05 1980-06-17 International Business Machines Corporation Method for disorienting magnetic particles
JPS56117336A (en) * 1980-02-19 1981-09-14 Sony Corp Manufacture of magnetic recording medium
JPS56119938A (en) * 1980-02-22 1981-09-19 Sony Corp Production of magnetic recording medium
EP0043882A1 (en) * 1980-07-16 1982-01-20 Kodak-Pathe Magnetic recording element, process for making the same and its use in recording
JPS5999471A (en) * 1982-11-29 1984-06-08 Fuji Xerox Co Ltd Manufacture of magnetic recording medium
JPS59124039A (en) * 1982-12-29 1984-07-18 Fuji Photo Film Co Ltd Manufacture of magnetic recording medium
DE3308052A1 (en) * 1983-03-08 1984-09-13 Agfa-Gevaert Ag, 5090 Leverkusen METHOD FOR PRODUCING A MAGNETIC RECORDING MATERIAL WITH VERTICAL ALIGNMENT
DE3736024C1 (en) * 1987-10-24 1989-03-23 Agfa Gevaert Ag Demagnetising device
JP2514828B2 (en) * 1988-01-18 1996-07-10 富士写真フイルム株式会社 Method of manufacturing magnetic recording medium
US5420742A (en) * 1993-07-30 1995-05-30 Minnesota Mining And Manufacturing Degausser for tape with plural recorded segments
US7517578B2 (en) * 2002-07-15 2009-04-14 Jds Uniphase Corporation Method and apparatus for orienting magnetic flakes
US7047883B2 (en) 2002-07-15 2006-05-23 Jds Uniphase Corporation Method and apparatus for orienting magnetic flakes
US7667895B2 (en) 1999-07-08 2010-02-23 Jds Uniphase Corporation Patterned structures with optically variable effects
US7604855B2 (en) * 2002-07-15 2009-10-20 Jds Uniphase Corporation Kinematic images formed by orienting alignable flakes
US11768321B2 (en) 2000-01-21 2023-09-26 Viavi Solutions Inc. Optically variable security devices
US7625632B2 (en) 2002-07-15 2009-12-01 Jds Uniphase Corporation Alignable diffractive pigment flakes and method and apparatus for alignment and images formed therefrom
US6902807B1 (en) * 2002-09-13 2005-06-07 Flex Products, Inc. Alignable diffractive pigment flakes
US7934451B2 (en) 2002-07-15 2011-05-03 Jds Uniphase Corporation Apparatus for orienting magnetic flakes
US11230127B2 (en) 2002-07-15 2022-01-25 Viavi Solutions Inc. Method and apparatus for orienting magnetic flakes
US8025952B2 (en) 2002-09-13 2011-09-27 Jds Uniphase Corporation Printed magnetic ink overt security image
US7674501B2 (en) 2002-09-13 2010-03-09 Jds Uniphase Corporation Two-step method of coating an article for security printing by application of electric or magnetic field
US9164575B2 (en) 2002-09-13 2015-10-20 Jds Uniphase Corporation Provision of frames or borders around pigment flakes for covert security applications
US7645510B2 (en) 2002-09-13 2010-01-12 Jds Uniphase Corporation Provision of frames or borders around opaque flakes for covert security applications
US9458324B2 (en) 2002-09-13 2016-10-04 Viava Solutions Inc. Flakes with undulate borders and method of forming thereof
US7258915B2 (en) * 2003-08-14 2007-08-21 Jds Uniphase Corporation Flake for covert security applications
US7241489B2 (en) * 2002-09-13 2007-07-10 Jds Uniphase Corporation Opaque flake for covert security applications
US7550197B2 (en) 2003-08-14 2009-06-23 Jds Uniphase Corporation Non-toxic flakes for authentication of pharmaceutical articles
TWI402106B (en) 2005-04-06 2013-07-21 Jds Uniphase Corp Dynamic appearance-changing optical devices (dacod) printed in a shaped magnetic field including printable fresnel structures
CA2564764C (en) 2005-10-25 2014-05-13 Jds Uniphase Corporation Patterned optical structures with enhanced security feature
AU2006249295A1 (en) 2005-12-15 2007-07-05 Jds Uniphase Corporation Security device with metameric features using diffractive pigment flakes
US10343436B2 (en) 2006-02-27 2019-07-09 Viavi Solutions Inc. Security device formed by printing with special effect inks
CA2592667C (en) 2006-07-12 2014-05-13 Jds Uniphase Corporation Stamping a coating of cured field aligned special effect flakes and image formed thereby
JP4684263B2 (en) * 2007-06-18 2011-05-18 日立マクセル株式会社 Demagnetizing device and demagnetizing method of magnetic recording medium, and method of manufacturing magnetic recording medium
JP2009193069A (en) 2008-02-13 2009-08-27 Jds Uniphase Corp Medium for laser printing including optical special effect flake
CA3123564C (en) 2012-01-12 2023-12-19 Vladimir P. Raksha Article with a dynamic frame formed with aligned pigment flakes

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784259A (en) * 1952-12-17 1957-03-05 Armour Res Found Recording and erase head for magnetic recorders
GB933762A (en) * 1958-12-04 1963-08-14 Emi Ltd Improvements in or relating to magnetic recording media
NL277788A (en) * 1961-04-28 1900-01-01
US3256112A (en) * 1962-07-23 1966-06-14 Iit Res Inst Method and apparatus for orienting magnetic particles of a recording medium and magnetic recording medium
GB1116011A (en) * 1965-07-23 1968-06-06 Lew William Karalus Recording tape
US3416949A (en) * 1965-08-02 1968-12-17 Iit Res Inst Low noise record medium and method for producing the same
US3413141A (en) * 1965-09-02 1968-11-26 Ibm Method and apparatus for making oriented magnetic recording media
US3490945A (en) * 1966-11-15 1970-01-20 Rca Corp Magnetic recording element and method for preparing same

Also Published As

Publication number Publication date
DE2008325A1 (en) 1970-11-12
FR2033015A5 (en) 1970-11-27
GB1291366A (en) 1972-10-04
DE2008325B2 (en) 1973-07-05
US3627580A (en) 1971-12-14

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