Assignee
Inventors
- Shimpei Aburaki (13 patents)
- Tetsuro Yamasaki (19 patents)
- Toshikazu Oki (52 patents)
- Seiji Iimura (11 patents)
- Hajime Kamachi (24 patents)
- Hideo Kamei (13 patents)
- Takayuki Naito (42 patents)
US Patent 5837828 · Granted Nov 17, 1998