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.)
Expired
Application number
CA854244A
Inventor
Tokumitsu Ichiro
Watanabe Kiyoshi
Sue Harufusa
Hamanaka Mitito
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.)
Idemitsu Kosan Co Ltd
Idemitsu Petrochemical Co Ltd
Original Assignee
Idemitsu Kosan Co Ltd
Idemitsu Petrochemical Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA854244ApublicationCriticalpatent/CA854244A/en