Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP5020838Aexternal-prioritypatent/JPH06210946A/ja
Priority claimed from JP6164809Aexternal-prioritypatent/JPH082106A/ja
Application filed by Nippon Chemicals Pharmaceutical Co LtdfiledCriticalNippon Chemicals Pharmaceutical Co Ltd
Application grantedgrantedCritical
Publication of TW294715BpublicationCriticalpatent/TW294715B/zh
Latent image-use printing ink composition, printed matter containing latent image recorded by the ink composition, reading method by latent image information and latent image information reading device