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.)
NITSUSEN KAGAKU KOGYO KK
Dowa Holdings Co Ltd
Nissan Chemical Corp
Original Assignee
NITSUSEN KAGAKU KOGYO KK
Nissan Chemical Corp
Dowa Mining 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 NITSUSEN KAGAKU KOGYO KK, Nissan Chemical Corp, Dowa Mining Co LtdfiledCriticalNITSUSEN KAGAKU KOGYO KK
Priority to JP8271779ApriorityCriticalpatent/JPS567757A/ja
Publication of JPS567757ApublicationCriticalpatent/JPS567757A/ja