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.)
Dai Nippon Printing Co Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Dai Nippon Printing Co Ltd
Nippon Telegraph and Telephone Corp
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 Dai Nippon Printing Co Ltd, Nippon Telegraph and Telephone CorpfiledCriticalDai Nippon Printing Co Ltd
Priority to JP62294696ApriorityCriticalpatent/JPS63140390A/ja
Publication of JPS63140390ApublicationCriticalpatent/JPS63140390A/ja
Publication of JPH0312354B2publicationCriticalpatent/JPH0312354B2/ja