Assignee
Inventors
- Takeyoshi Nishio (42 patents)
- Takao Nomura (58 patents)
- Yukio Okishio (1 patents)
- Ichiro Nishi (1 patents)
- Tatsuo Yamamoto (2 patents)
- Junji Mayumi (9 patents)
- Takao Usami (2 patents)
- Takao Yazaki (27 patents)
US Patent 6001455 · Granted Dec 14, 1999