Title:
【発明の名称】スクアリリウム系化合物及びそれを用いた光情報記録媒体
Document Type and Number:
Japanese Patent JP2670616
Kind Code:
B2
Abstract:
Squarylium compounds having the following formula (I), (I) and an optical information recording medium comprising a substrate, and a recording layer formed on the substrate, comprising a squarylium compound having formula (II) are disclosed: (II)
Inventors:
Tsutomu Sato
Ikuo Shimizu
Yuki Ito
Ikuo Shimizu
Yuki Ito
Application Number:
JP10694488A
Publication Date:
October 29, 1997
Filing Date:
April 28, 1988
Export Citation:
Assignee:
株式会社リコー
協和醗酵工業株式会社
協和醗酵工業株式会社
International Classes:
B41M5/26; C07D209/12; C07D491/048; C09B23/01; C09B57/00; G11B7/2405; G11B7/24073; G11B7/24076; G11B7/24079; G11B7/24085; G11B7/244; (IPC1-7): C09B57/00; B41M5/26; G11B7/24
Attorney, Agent or Firm:
Toshiaki Ikeura (1 outside)