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Jouve S.A., EPO - Publication - KB, TaggedPDF v1.27
EP-0248556-A3-19890322
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EP-0248556-A3-19890322
An abrasion resistant magnetic recording member has a carbonaceous superficial protective film for protecting the surface of a magnetic film formed on a substrate. The carbonaceous protective film is formed of a lower layer comprising a comparatively hard carbonaceous film containing from 0 at.% to 5 at.% of hydrogen and/or fluorine atoms and an upper layer comprising a comparatively soft carbonaceous film containing at least 6 at.% of hydrogen atoms and/or fluorine atoms.
An abrasion resistant magnetic recording member has a carbonaceous superficial protective film for protecting the surface of a magnetic film formed on a substrate. The carbonaceous protective film is formed of a lower layer comprising a comparatively hard carbonaceous film containing from 0 at.% to 5 at.% of hydrogen and/or fluorine atoms and an upper layer comprising a comparatively soft carbonaceous film containing at least 6 at.% of hydrogen atoms and/or fluorine atoms.
en
European Patent Office
EP0248556
EP 0248556
G11B 05/72
Abrasion resistant magnetic recording member
Abrasion resistant magnetic recording member - European Patent Office - EP 0248556 A3
Abrasion resistant magnetic recording member - European Patent Office - EP 0248556 A3
Adobe PDF Library 8.0
"EP0248556"; "EP 0248556"; "G11B 05/72"; "Abrasion resistant magnetic recording member"
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0248556
A3
1989-03-22
87304299
1987-05-14
JP
11910886
1986-05-26
G11B 05/72
NIHON SHINKU GIJUTSU KABUSHIKI KAISHA
Nakamura, Kyuzo
Ota, Yoshifumi
Yamada, Taiki
Ishikawa, Michio
Tani, Noriaki
Overbury, Richard Douglas et al
Abrasion resistant magnetic recording member
Abriebfester magnetischer Aufzeichnungsträger
Abrasion resistant magnetic recording member
Milieu d'enregistrement magnétique résistant à l'abrasion
An abrasion resistant magnetic recording member has a carbonaceous superficial protective film for protecting the surface of a magnetic film formed on a substrate. The carbonaceous protective film is formed of a lower layer comprising a comparatively hard carbonaceous film containing from 0 at.% to 5 at.% of hydrogen and/or fluorine atoms and an upper layer comprising a comparatively soft carbonaceous film containing at least 6 at.% of hydrogen atoms and/or fluorine atoms.
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