Assignee
Inventors
- Tsutomu Igarashi (48 patents)
- Kenji Arimochi (4 patents)
- Teruo Yokoyama (8 patents)
- Eizo Mitani (3 patents)
- Shigeru Kuroda (55 patents)
- Junichiro Nikaido (4 patents)
- Yasunori Tateno (15 patents)
US Patent 6274893 · Granted Aug 14, 2001