Assignee
Inventors
- Yoshiharu Toyama (2 patents)
- Akikazu Kuroda (2 patents)
- Tokuji Kiyama (2 patents)
- Sumio Kida (2 patents)
- Shunji Yoshida (15 patents)
- Takashi Yamamoto (694 patents)
- Tetsuya Atsumi (44 patents)
US Patent 6123767 · Granted Sep 26, 2000