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
CA799998A
Inventor
Shuto Yasusuke
Uchiyama Mitsuru
Sugawara Hirozo
Takeshita Yashuhiro
Higashimori Shiro
Ogawa Mitsuhiro
Nishimura Toshihide
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
Original Assignee
Idemitsu Kosan Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA799998ApublicationCriticalpatent/CA799998A/en