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.)
Tohoku Electric Power Co Inc
Fujitsu Ltd
Original Assignee
Tohoku Electric Power Co Inc
Fujitsu 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 Tohoku Electric Power Co Inc, Fujitsu LtdfiledCriticalTohoku Electric Power Co Inc
Priority to JP17122185ApriorityCriticalpatent/JPS6232697A/ja
Publication of JPS6232697ApublicationCriticalpatent/JPS6232697A/ja
Publication of JPH0570318B2publicationCriticalpatent/JPH0570318B2/ja