Assignee
- Japan As Represented By Director General Of The Agency Of Industrial Science And Technology
- Nippon Zeon Co.
Inventors
- Akira Sekiya (20 patents)
- Shigeru Kurosawa (7 patents)
- Toshiro Yamada (33 patents)
- Kuniaki Goto (16 patents)
US Patent 5302764 · Granted Apr 12, 1994