Assignee
Inventors
- Youichi Kowatari (11 patents)
- Toichi Hirata (91 patents)
- Hidefumi Takegahara (2 patents)
- Tsukasa Toyooka (26 patents)
- Kouji Ishikawa (146 patents)
- Genroku Sugiyama (94 patents)
- Shigehiro Yoshinaga (7 patents)
US Patent 6101456 · Granted Aug 8, 2000