EP 1293969 A8 20030625 - Magnetic recording medium
Title (en)
Magnetic recording medium
Title (de)
Magnetisches Aufzeichnungsmittel
Title (fr)
Moyen d' enregistrement magnétique
Publication
Application
Priority
- JP 2001279403 A 20010914
- JP 2001288946 A 20010921
- JP 2001288947 A 20010921
Abstract (en)
[origin: EP1293969A1] The present invention provides a magnetic recording medium, which comprises a chromium-containing primer layer and a magnetic layer at least on one surface of a nonmagnetic support member, said chromium-containing primer layer contains chromium and at least one type of element selected from a group of cobalt, beryllium, osmium, rhenium, titanium, zinc, tantalum, aluminum, molybdenum, tungsten, vanadium, iron, antimony, iridium, ruthenium, rhodium, platinum, palladium, silicon, and zirconium, and said magnetic layer comprises a ferromagnetic metal alloy containing at least cobalt, platinum and chromium, and a nonmagnetic material.
IPC 1-7
IPC 8 full level
G11B 5/64 (2006.01); G11B 5/73 (2006.01); G11B 5/851 (2006.01)
CPC (source: EP US)
G11B 5/658 (2021.05 - EP US); G11B 5/7379 (2019.05 - EP US); G11B 5/73927 (2019.05 - EP US); G11B 5/73929 (2019.05 - EP US); G11B 5/73937 (2019.05 - EP US); G11B 5/851 (2013.01 - EP US); Y10T 428/24248 (2015.01 - EP US); Y10T 428/24281 (2015.01 - EP US); Y10T 428/256 (2015.01 - EP US); Y10T 428/259 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
EP 1293969 A1 20030319; EP 1293969 A8 20030625; EP 1293969 B1 20060614; DE 60212281 D1 20060727; DE 60212281 T2 20070516; EP 1457972 A1 20040915; US 2003134151 A1 20030717; US 2004197606 A1 20041007; US 2005008901 A1 20050113
DOCDB simple family (application)
EP 02020514 A 20020913; DE 60212281 T 20020913; EP 04014238 A 20020913; US 23860102 A 20020911; US 82647404 A 20040419; US 91534404 A 20040811