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.)
Hitachi Ltd
Hitachi Information and Control Systems Inc
Original Assignee
Hitachi Ltd
Hitachi Information and Control Systems Inc
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 Hitachi Ltd, Hitachi Information and Control Systems IncfiledCriticalHitachi Ltd
Priority to JP61052500ApriorityCriticalpatent/JPS62210596A/ja
Priority to CA000531358Aprioritypatent/CA1310741C/en
Publication of JPS62210596ApublicationCriticalpatent/JPS62210596A/ja
Publication of JPH0523464B2publicationCriticalpatent/JPH0523464B2/ja