Assignee
Inventors
- Hiroaki Kuwano (22 patents)
- Hiroshi Takase (31 patents)
- Hisashi Sato (58 patents)
- Toshirou Matsushita (1 patents)
- Toshio Imazeki (4 patents)
- Taichi Kukizaki (3 patents)
- Kiyoshi Ueda (18 patents)
- Hideyuki Nikaido (26 patents)
US Patent 6185971 · Granted Feb 13, 2001