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
CA862975A
Inventor
Izuka Yoshio
Mashimo Noriyasu
Watanabe Masao
Asami Hiroshi
Kitazawa Akisige
Tanaka Hideyuki
Nagashima Junnosuke
Takai Hideo
Inai Shinro
Takegawa Akio
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
Publication date
Application grantedgrantedCritical
Publication of CA862975ApublicationCriticalpatent/CA862975A/en