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.)
Okazaki Minerals and Refining Co Ltd
Original Assignee
Okazaki Minerals and Refining 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 Okazaki Minerals and Refining Co LtdfiledCriticalOkazaki Minerals and Refining Co Ltd
Priority to JP10931586ApriorityCriticalpatent/JPS62263844A/ja
Publication of JPS62263844ApublicationCriticalpatent/JPS62263844A/ja
Publication of JPH0558820B2publicationCriticalpatent/JPH0558820B2/ja