G - Physics – 11 – B
Patent
G - Physics
11
B
352/32.4
G11B 7/24 (2006.01) G11B 7/253 (2006.01) G11B 7/254 (2006.01) G11B 7/258 (2006.01)
Patent
CA 2017059
ABSTRACT OF THE DISCLOSURE: Disclosed herein is a read-only optical disk comprising an annulus transparent substrate of a synthetic resin having information pits thereon, a reflective layer comprising an Al alloy containing Ta and a protective layer provided thereover. The read-only optical disk according to the present invention is excellent in the corrosion resistance and has a high reliability. - 13 -
Hashimoto Takashi
Kawano Toshifumi
Kisaka Yoshiyuki
Kobayashi Yoshimitsu
Wakabayashi Mitsugu
Hashimoto Takashi
Kawano Toshifumi
Kisaka Yoshiyuki
Kobayashi Yoshimitsu
Mitsubishi Chemical Corporation
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