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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co LtdfiledCriticalFuji Electric Co Ltd
Priority to JP7960576ApriorityCriticalpatent/JPS535577A/en
Publication of JPS535577ApublicationCriticalpatent/JPS535577A/en
Publication of JPS5725076B2publicationCriticalpatent/JPS5725076B2/ja