Title:
OPTICAL RECORDING MEDIUM AND RECORDING METHOD
Document Type and Number:
Japanese Patent JP3641874
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain an optical recording medium having superior recording characteristics, light resistance and durability and enabling high-density recording, by letting a recording layer contain a metallic chelate compound of a specific azo compound and a metal.
SOLUTION: A recording layer contains a metallic chelate compound of an azo compound and a metal represented by the formula. The optical recording medium is recorded and reproduced with a laser light of a center wavelength of 600-700nm. In the formula, A1 indicates a residue forming a heterocycle, along with a carbon atom and a nitrogen atom bonded therewith, selected from a group of thiazole, isoxazole, oxazole, pyrazole and imidazole. B1 indicates a residue forming an aromatic along with two carbon atoms bonded therewith. X is -OY, -COOY and Y is a hydrogen atom or cation.
More Like This:
Inventors:
Yuka Okamoto
Hiroshi Kurose
Takako Tsukahara
Shuichi Maeda
Hiroshi Kurose
Takako Tsukahara
Shuichi Maeda
Application Number:
JP9385196A
Publication Date:
April 27, 2005
Filing Date:
April 16, 1996
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
B41M5/26; C07D231/38; C07D233/68; C07D233/90; C07D261/14; C07D263/28; C07D285/08; C07D285/12; C07D285/135; C09B45/14; G11B7/244; G11B7/249; (IPC1-7): B41M5/26; C07D231/38; C07D233/68; C07D233/90; C07D261/14; C07D263/28; C07D285/08; C07D285/135; C09B45/14; G11B7/24
Domestic Patent References:
| JP9245374A | ||||
| JP5279580A | ||||
| JP4361088A | ||||
| JP9175031A | ||||
| JP10001615A |
Foreign References:
| WO1991018057A1 |
Attorney, Agent or Firm:
Hasegawa Soji