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
CA880272A
Inventor
Nakajima Masakazu
Ishibe Shuhei
Nakamura Yoshimitsu
Matsuo Kotaro
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.)
Arakawa Rinsan Kagaku Kogyo KK
Original Assignee
Arakawa Rinsan Kagaku Kogyo KK
Publication date
Application grantedgrantedCritical
Publication of CA880272ApublicationCriticalpatent/CA880272A/en