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
CA888693A
Inventor
Takase Sinji
Nambu Masao
Shioiri Tomonori
Watanabe Harumichi
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.)
Eneos Corp
Original Assignee
Nippon Oil Corp
Publication date
Application grantedgrantedCritical
Publication of CA888693ApublicationCriticalpatent/CA888693A/en