Assignee
Inventors
- Yoji Maruyama (18 patents)
- Makoto Aihara (18 patents)
- Teruyoshi Higashiya (18 patents)
- Mikio Tokuyama (76 patents)
- Sadanori Nagaike (14 patents)
- Tetsuji Higashijima (5 patents)
- Kazuo Nate (21 patents)
- Hideki Sonobe (13 patents)
US Patent 6118635 · Granted Sep 12, 2000