Title:
含金属アゾ化合物および該化合物を使用する光記録媒体
Document Type and Number:
Japanese Patent JP4540803
Kind Code:
B2
Abstract:
An object of the present invention is to provide an optical recording medium that is excellent in recording and reading-out characteristics in the case of using a shortwave semiconductor laser and is good in light resistance and durability. A metal-containing azo compound comprising an azo compound represented by the following general formula [I] and at least one metal salt: General formula [I] wherein X is a hydroxyl group, a carboxyl group, a sufonamide group, a carbonylamide group or an amino group, R1 and R2 are independently a hydrogen atom, a substituted or unsubstituted and linear or branched alkyl group, a substituted or unsubstituted and unsaturated hydrocarbon, a substituted or unsubstituted aromatic ring, or an alkoxy group, each of R3, R4, R5, R6, R7 and R8 is a hydrogen atom, a linear or branched alkyl group which may have one or more substituents, a linear or branched and unsaturated hydrocarbon which may have one or more substituents, a substituted or unsubstituted aromatic ring, an alkoxy group, a halogen atom or a cyano group, and a combination of R1 and R2 or a combination of R6 and R7 may form a ring through a connecting group.
Inventors:
Yoshiyuki Nagataki
Yuichi Sakurai
Koji Takasawa
Yoshiharu Iinuma
Masatoshi Taniguchi
Atsuko Ueda
Yuichi Sakurai
Koji Takasawa
Yoshiharu Iinuma
Masatoshi Taniguchi
Atsuko Ueda
Application Number:
JP2000167711A
Publication Date:
September 08, 2010
Filing Date:
June 05, 2000
Export Citation:
Assignee:
Hitachi Maxell Co., Ltd.
Yamada Chemical Co., Ltd.
Yamada Chemical Co., Ltd.
International Classes:
B41M5/26; C09B27/00; C07D239/42; C07D239/94; C09B45/34; G11B7/24035; G11B7/24079; G11B7/24085; G11B7/244; G11B7/249; G11B7/2495; G11B7/007
Domestic Patent References:
| JP10157300A | ||||
| JP9058123A |
Foreign References:
| WO1999003686A1 |
Attorney, Agent or Firm:
Kenjiro Take