Assignee
Inventors
- Yoshitaka Okamura (15 patents)
- Yoichi Tosaka (47 patents)
- Kenichirou Hashimoto (7 patents)
- Hirofumi Hirano (59 patents)
- Kosuke Yamamoto (104 patents)
- Hiroshi Nakai (126 patents)
- Yoshinori Watanabe (233 patents)
US Patent 5777634 · Granted Jul 7, 1998