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.)
Tokuyama Corp
Original Assignee
Tokuyama 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 Tokuyama CorpfiledCriticalTokuyama Corp
Priority to JP15702480ApriorityCriticalpatent/JPS5780443A/ja
Publication of JPS5780443ApublicationCriticalpatent/JPS5780443A/ja
Publication of JPS6239615B2publicationCriticalpatent/JPS6239615B2/ja