Assignee
Inventors
- Katsutoshi Muramatsu (15 patents)
- Toshiaki Kaneko (13 patents)
- Kouichi Kiyohara (1 patents)
- Kenji Ito (229 patents)
- Yoshimi Nishihara (1 patents)
- Hiroyuki Inoue (235 patents)
- Makoto Ishihara (27 patents)
US Patent 5823510 · Granted Oct 20, 1998