Assignee
Inventors
- Masaaki Yoshikai (3 patents)
- Koichi Takahashi (226 patents)
- Masato Koyama (95 patents)
- Yuichiro Harada (3 patents)
- Yoshihiro Sakai (66 patents)
- Akemi Nakajima (1 patents)
- Toshihiro Dodo (14 patents)
US Patent 5911899 · Granted Jun 15, 1999