Assignee
Inventors
- Toshio Kurihara (9 patents)
- Toshiyuki Nishio (5 patents)
- Hisao Yamamoto (38 patents)
- Minoru Kamimura (7 patents)
- Shinichi Teshima (17 patents)
- Tsuneo Hanyu (3 patents)
- Shigenori Emi (18 patents)
US Patent 6162614 · Granted Dec 19, 2000