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.)
Tosoh Corp
Original Assignee
Toyo Soda Manufacturing 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 Toyo Soda Manufacturing Co LtdfiledCriticalToyo Soda Manufacturing Co Ltd
Priority to JP55155762ApriorityCriticalpatent/JPS5780430A/ja
Priority to CA000389284Aprioritypatent/CA1214433A/en
Publication of JPS5780430ApublicationCriticalpatent/JPS5780430A/ja
Priority to US06/792,629prioritypatent/US4693796A/en
Publication of JPS627217B2publicationCriticalpatent/JPS627217B2/ja