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
CA784767A
Inventor
Kikuchi Yoshiaki
Simoyama Syuzo
Oyama Hazime
Fuzimoto Norikazu
Ogawa Takatoshi
Kitsukawa Tomohiko
Suzuki Tetsuya
Ishikawa Hachiro
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.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
Publication date
Application grantedgrantedCritical
Publication of CA784767ApublicationCriticalpatent/CA784767A/en