Assignee
Inventors
- Goro Kitsukawa (70 patents)
- Takao Watanabe (198 patents)
- Ryoichi Hori (85 patents)
- Noriyuki Honma (8 patents)
- Kunihiko Yamaguchi (21 patents)
- Kiyoo Ito (5 patents)
- Masahiro Iwamura (90 patents)
- Ikuro Masuda (48 patents)
US Patent 5644548 · Granted Jul 1, 1997