Assignee
Inventors
- Itsuo Sasaki (11 patents)
- Yasoji Suzuki (43 patents)
- Hirofumi Kato (36 patents)
- Isao Arita (6 patents)
- Toshio Yanagisawa (4 patents)
- Kazuyoshi Yamamoto (42 patents)
- Hiroyoshi Murata (12 patents)
- Hiroyuki Hamagawa (2 patents)
US Patent 6020869 · Granted Feb 1, 2000