Assignee
Inventors
- Hitoshi Kamamori (21 patents)
- Koji Iwasa (19 patents)
- Takakazu Fukuchi (14 patents)
- Mitsuru Suginoya (22 patents)
- Tsutomu Watanabe (163 patents)
- Toshiaki Ota (16 patents)
- Junichi Yasukawa (8 patents)
US Patent 6203950 · Granted Mar 20, 2001