Assignee
Inventors
- Yutaka Oonishi (4 patents)
- Tsutomu Nozawa (6 patents)
- Takami Ooe (2 patents)
- Keisuke Mano (4 patents)
- Naoaki Misu (5 patents)
- Yohei Kurata (6 patents)
- Shinobu Ito (19 patents)
- Eiji Ogata (23 patents)
US Patent 6046181 · Granted Apr 4, 2000