Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Tec Corp
Original Assignee
Tokyo Electric Co Ltd
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
Application filed by Tokyo Electric Co LtdfiledCriticalTokyo Electric Co Ltd
Priority to JP4157578ApriorityCriticalpatent/JPS54133902A/ja
Publication of JPS54133902ApublicationCriticalpatent/JPS54133902A/ja
Publication of JPS6148419B2publicationCriticalpatent/JPS6148419B2/ja
Security support with an imprinted micropattern contained therein which prevents falsification of documents when high-resolution copier machines are used