Assignee
Inventors
- Keiichi Soda (4 patents)
- Tatsuki Ichihashi (7 patents)
- Yukio Ushisako (2 patents)
- Kazuyuki Kashima (7 patents)
- Tetsuya Yokotani (9 patents)
- Koichi Hiramatsu (11 patents)
- Makoto Shibahara (7 patents)
US Patent 5793767 · Granted Aug 11, 1998