Assignee
Inventors
- Kazuhiro Ichikawa (55 patents)
- Yoshihiro Nakashima (54 patents)
- Hidenori Kin (24 patents)
- Tomoe Aruga (44 patents)
- Yoichi Yamada (154 patents)
- Yukio Takayama (20 patents)
- Tahei Ishiwatari (26 patents)
US Patent 6192209 · Granted Feb 20, 2001