Assignee
Inventors
- Eiji Sato (121 patents)
- Masakatsu Hayashi (25 patents)
- Takeo Takagi (12 patents)
- Toshiyuki Aoki (29 patents)
- Yoshiyuki Takamura (21 patents)
- Tsutomu Hasegawa (24 patents)
- Shigeki Kunii (1 patents)
US Patent 6305548 · Granted Oct 23, 2001