Title:
METAL-CONTAINING AZO COMPOUNDS AND OPTICAL RECORDING MEDIA
Document Type and Number:
WIPO Patent Application WO/2000/055136
Kind Code:
A1
Abstract:
Metal-containing azo compounds represented by at least one of the general formulae (a1), (a2), (a3) and (a4) and being useful in forming recording layers of optical recording media; and optical recording media which have recording layers containing the compounds, wherein M is a divalent metal; X?1¿ and X?2¿ are each a residue forming a mono- or poly-cyclic aromatic ring; and Y?1¿ and Y?2¿ are each a residue forming a nitrogenous heteroaromatic ring, with the proviso that in at least either of the combination of X?1¿ and X?2¿ and that of Y?1¿ and Y?2¿, both residues are different from each other.
Inventors:
TOSAKI YOSHIHIRO (JP)
HOSAKA TOMIHARU (JP)
KUNIEDA TOSHIAKI (JP)
TANIGUCHI MASATOSHI (JP)
KOBAYASHI NORIKO (JP)
HASE TOMOYUKI (JP)
HOSAKA TOMIHARU (JP)
KUNIEDA TOSHIAKI (JP)
TANIGUCHI MASATOSHI (JP)
KOBAYASHI NORIKO (JP)
HASE TOMOYUKI (JP)
Application Number:
PCT/JP2000/001526
Publication Date:
September 21, 2000
Filing Date:
March 14, 2000
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
YAMADA CHEM CO (JP)
TOSAKI YOSHIHIRO (JP)
HOSAKA TOMIHARU (JP)
KUNIEDA TOSHIAKI (JP)
TANIGUCHI MASATOSHI (JP)
KOBAYASHI NORIKO (JP)
HASE TOMOYUKI (JP)
YAMADA CHEM CO (JP)
TOSAKI YOSHIHIRO (JP)
HOSAKA TOMIHARU (JP)
KUNIEDA TOSHIAKI (JP)
TANIGUCHI MASATOSHI (JP)
KOBAYASHI NORIKO (JP)
HASE TOMOYUKI (JP)
International Classes:
C07D213/77; C07D277/50; C07F1/00; C07F3/00; C07F15/04; G11B7/246; G11B7/2467; G11B7/249; G11B7/2492; G11B7/253; G11B7/2534; G11B7/258; G11B7/2595; (IPC1-7): C07D213/76; C07D239/47; C07D277/50; G11B7/24
Foreign References:
| US4358527A | 1982-11-09 | |||
| JP2000062321A | 2000-02-29 | |||
| EP0937751A1 | 1999-08-25 | |||
| EP0649880A1 | 1995-04-26 | |||
| US4521506A | 1985-06-04 | |||
| US5980622A | 1999-11-09 |
Attorney, Agent or Firm:
Aoyama, Tamotsu (3-7 Shiromi 1-chom, Chuo-ku Osaka-shi Osaka, JP)
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