Squarylium compounds and optical information recording medium using the same
申请人:KYOWA HAKKO KOGYO CO., LTD.
公开号:EP0408014A1
公开(公告)日:1991-01-16
Squarylium compounds having the following formula (I),
and an optical information recording medium comprising a substrate and a recording layer formed on the substrate, comprising a squarylium compound having formula (I) are disclosed.