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.)
NEC Corp
Original Assignee
Nippon 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 Nippon Electric Co LtdfiledCriticalNippon Electric Co Ltd
Priority to JP752463ApriorityCriticalpatent/JPS5521383B2/ja
Priority to US05/598,958prioritypatent/US4003022A/en
Publication of JPS5173833ApublicationCriticalpatent/JPS5173833A/ja
Publication of JPS5521383B2publicationCriticalpatent/JPS5521383B2/ja