Assignee
Inventors
- Katsura Adachi (7 patents)
- Makoto Usui (89 patents)
- Kota Nishii (13 patents)
- Takashi Muraya (2 patents)
- Toshihiro Kobayashi (86 patents)
- Kazuyuki Tamura (12 patents)
- Junichi Sato (256 patents)
US Patent 5909819 · Granted Jun 8, 1999