Assignee
Inventors
- Akikazu Nakano (24 patents)
- Takashi Sumitomo (21 patents)
- Keisuke Funaki (41 patents)
- Toshikazu Ijitsu (12 patents)
- Michihiro Sawada (14 patents)
- Masahiko Kuramoto (44 patents)
- Masakazu Suzuki (156 patents)
US Patent 6051655 · Granted Apr 18, 2000