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
Priority claimed from PCT/JP1987/000032external-prioritypatent/WO1987004439A1/en
Priority claimed from JP62011255Aexternal-prioritypatent/JPS63181234A/en
Application filedfiledCritical
Publication of KR880700808ApublicationCriticalpatent/KR880700808A/en