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
CA910344A
Inventor
Yoshino Takachika
Sobukawa Masukuni
Nagase Isao
Ishikura Jun
Sasaki Yutaka
Saito Shigeru
Niikura Masao
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.)
Nitto Chemical Industry Co Ltd
Original Assignee
Nitto Chemical Industry Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA910344ApublicationCriticalpatent/CA910344A/en