Magnetic card

Details Magnetic card Magnetic card

2006-08-15

2006-08-15

Resan, Stevan A. (Department: 1773)

Stock material or miscellaneous articles

Magnetic recording component or stock

Thin film media

C283S082000

Reexamination Certificate

active

07090935

ABSTRACT:
A magnetic card of the invention comprises a card substrate11on which a magnetic layer12, a thin-film layer13formed of a metal or a metal compound for concealing the magnetic layer, a printed layer14and a volume hologram layer15are successively provided, wherein magnetic information is recorded on or read from a volume hologram layer side. The volume hologram layer15is composed essentially of a photosensitive material comprising a cationic polymerizable compound, a radical polymerizable compound, a photo-radical polymerization initiator system that is sensitive to light of a specific wavelength to polymerize the radical polymerizable compound, and a photo-cationic polymerization initiator system that is less sensitive to the light of a specific wavelength but sensitive to light of another wavelength to polymerize the cationic polymerizable compound. The magnetic card is improved in terms of wear resistance to sliding contact with a magnetic head, and ensures precise writing or reading of magnetic recording data, with improved ability to prevent forgery.

REFERENCES:
patent: 6278683 (2001-08-01), Hayashi
patent: 2002/0191234 (2002-12-01), Ishimoto et al.

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