Assignee
Inventors
- Takushi Nishiya (14 patents)
- Tatsuya Hirai (50 patents)
- Seiichi Mita (71 patents)
- Takashi Nara (69 patents)
- Yoichi Uehara (12 patents)
- Hiroshi Ide (47 patents)
- Kyoko Tsukano (1 patents)
- Yoshiju Watanabe (29 patents)
US Patent 6373407 · Granted Apr 16, 2002