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
CA882817A
Inventor
Takahashi Mitsuhiro
Arakawa Kiyoshi
Ouchi Hiroshi
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.)
Ube Exsymo Co Ltd
Original Assignee
Ube Nitto Kasei Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA882817ApublicationCriticalpatent/CA882817A/en