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.)
Kanto Chemical Co Inc
Hitachi Ltd
Original Assignee
Kanto Chemical Co Inc
Hitachi 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 Kanto Chemical Co Inc, Hitachi LtdfiledCriticalKanto Chemical Co Inc
Priority to JP14665982ApriorityCriticalpatent/JPS5936634A/ja
Publication of JPS5936634ApublicationCriticalpatent/JPS5936634A/ja
Publication of JPH0314295B2publicationCriticalpatent/JPH0314295B2/ja