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
DKK TOA Corp
Original Assignee
Idemitsu Kosan Co Ltd
DKK Corp
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 Ltd, DKK CorpfiledCriticalIdemitsu Kosan Co Ltd
Priority to JP15081986ApriorityCriticalpatent/JPS636403A/ja
Publication of JPS636403ApublicationCriticalpatent/JPS636403A/ja
Publication of JPH0444224B2publicationCriticalpatent/JPH0444224B2/ja