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
CA671612A
Inventor
Kinoshita Shukuo
Nara Takashi
Samejima Hirotoshi
Fujita Chuzo
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.)
KH Neochem Co Ltd
Original Assignee
Kyowa Hakko Kogyo Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA671612ApublicationCriticalpatent/CA671612A/en