Assignee
Inventors
- Keiichiro Yuasa (3 patents)
- Koichiro Matsuzaki (2 patents)
- Kenta Hara (15 patents)
- Takeyuki Nagashima (20 patents)
- Hiroki Koyano (11 patents)
- Keiichi Takashima (15 patents)
- Hitoshi Osaka (14 patents)
US Patent 5878198 · Granted Mar 2, 1999