Assignee
Inventors
- Takaomi Toi (13 patents)
- Tetsuya Morinaga (21 patents)
- Masahiro Bando (15 patents)
- Tetsuo Hatakenaka (6 patents)
- Kazuo Kasahara (6 patents)
- Koki Sasaki (11 patents)
- Takayuki Hirotsuji (4 patents)
US Patent 6552642 · Granted Apr 22, 2003