TRANSIENT OPTICAL STATE CHANGE MATERIALS USEFUL IN COPY-PROTECTED COMPACT DISCS
摘要
Phenothiazole compounds being substituted in at least the 3 and 7 positions with electron donating and electron withdrawing moeties. These include those shown in figure 1. These are useful in providing copy-protection for optical data storage media.
申请公布号
CA2503684(A1)
申请公布日期
2004.04.08
申请号
CA20032503684
申请日期
2003.09.26
申请人
VERIFICATION TECHNOLOGIES, INC.
发明人
SELINFREUND, RICHARD H.;GERGER, SCOTT;VIG, RAKESH;LI, JUNZHONG
