Stock material or miscellaneous articles – Circular sheet or circular blank
Reexamination Certificate
2006-03-07
2006-03-07
Mulvaeny, Elizabeth (Department: 1774)
Stock material or miscellaneous articles
Circular sheet or circular blank
C428S064500, C428S064600, C430S270130
Reexamination Certificate
active
07008681
ABSTRACT:
An optical information recording medium of the present invention includes at least one information layer. The information layer includes a first protective film, a first interface film, a recording film having the optical characteristics that are changed reversibly by laser beam irradiation, a second interface film, a second protective film, and a reflective film, present in the indicated order from the laser beam incident side. The first interface film includes an oxide of at least one element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, and Si. The second interface film includes carbon or a carbide of at least one element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, and Si.
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Kitaura Hideki
Kojima Rie
Nishihara Takashi
Sakaue Yoshitaka
Yamada Noboru
Hamre Schumann Mueller & Larson P.C.
Mulvaeny Elizabeth
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