| 发明名称 |
SQUARYLIUM COMPOUNDS AND OPTICAL INFORMATION RECORDING MEDIUM USING THE SAME |
| 摘要 |
Squarylium compounds having the following formula (I), <IMAGE> (I) <IMAGE> 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: <IMAGE> (II) <IMAGE>
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| 申请公布号 |
US5085909(A) |
申请公布日期 |
1992.02.04 |
| 申请号 |
US19900495715 |
申请日期 |
1990.03.16 |
| 申请人 |
RICOH COMPANY, LTD.;KYOWA HAKKO KOGYO CO., LTD. |
发明人 |
SATOH, TSUTOMU;SHIMIZU, IKUO;ITO, YUKIYOSHI |
| 分类号 |
B41M5/26;C07D209/12;C07D491/048;C09B23/01;C09B57/00;G11B7/24;G11B7/244 |
主分类号 |
B41M5/26 |
| 代理机构 |
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