Assignee
- Japan As Represented By Director General Of The Agency Of Industrial Science And Technology
- Nippon Zeon Co.
Inventors
- Akira Sekiya (20 patents)
- Toshirou Yamada (4 patents)
- Takashi Uruma (3 patents)
- Tatsuya Sugimoto (63 patents)
US Patent 6403846 · Granted Jun 11, 2002