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
CA835981A
Inventor
Naito Takayuki
Nakagawa Susumu
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.)
BRISTOL-BANYU RESEARCH INSTITUTE
Original Assignee
BRISTOL-BANYU RESEARCH INSTITUTE
Publication date
Application grantedgrantedCritical
Publication of CA835981ApublicationCriticalpatent/CA835981A/en