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
CA853643A
Inventor
Bando Iwao
Hatada Yasutaka
Usamoto Teruyoshi
Fukue Hachiro
Yoshiki Ken
Ohishi Kanemitsu
Takeuchi Hideki
Ohta Tadahisa
Tanaka Shizuma
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.)
Sumitomo Chemical Co Ltd
Toppan Cosmo Inc
Original Assignee
Sumitomo Chemical Co Ltd
Toppan Shoji Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA853643ApublicationCriticalpatent/CA853643A/en