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
CA885539A
Inventor
Fujimoto Norihide
Kishida Kanji
Kawaguchi Yoichi
Suzuki Kenji
Shimada Masayoshi
Ikeda Hideo
Kobayashi Takashi
Komoto Kenichi
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.)
Toyobo Co Ltd
Original Assignee
Toyobo Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA885539ApublicationCriticalpatent/CA885539A/en