Assignee
Inventors
- Kazuhiro Aihara (12 patents)
- Toshiro Sasaki (15 patents)
- Yumiko Toyooka (3 patents)
- Yuko Kano (13 patents)
- Kunio Atsumi (32 patents)
- Katsuyoshi Iwamatsu (29 patents)
- Takashi Ida (11 patents)
US Patent 6180622 · Granted Jan 30, 2001