Assignee
Inventors
- Teruo Oku (81 patents)
- Yoshio Kawai (86 patents)
- Shigeki Satoh (17 patents)
- Hitoshi Yamazaki (14 patents)
- Natsuko Kayakiri (18 patents)
- Yasuharu Urano (6 patents)
- Kousei Yoshihara (9 patents)
- Noriko Yoshida (1 patents)
US Patent 6008230 · Granted Dec 28, 1999