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.)
Idemitsu Kosan Co Ltd
Original Assignee
Idemitsu Kosan 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 Idemitsu Kosan Co LtdfiledCriticalIdemitsu Kosan Co Ltd
Priority to JP60287882ApriorityCriticalpatent/JPS62148596A/ja
Priority to CA000522708Aprioritypatent/CA1277310C/en
Priority to US06/931,431prioritypatent/US4684754A/en
Priority to DE8686116454Tprioritypatent/DE3687738T2/de
Priority to EP86116454Aprioritypatent/EP0224259B1/en
Priority to KR1019860010176Aprioritypatent/KR900000877B1/ko
Publication of JPS62148596ApublicationCriticalpatent/JPS62148596A/ja
Publication of JPH041795B2publicationCriticalpatent/JPH041795B2/ja