Assignee
Inventors
- Tsutomu Yoshida (42 patents)
- Kenji Ikishima (1 patents)
- Kiyoyuki Fukui (8 patents)
- Masamitsu Matsumoto (3 patents)
- Yozo Hirose (1 patents)
- Tadashi Sakane (10 patents)
- Toshiharu Oshiba (1 patents)
US Patent 6126730 · Granted Oct 3, 2000