Assignee
Inventors
- Sunao Mori (13 patents)
- Takashi Enomoto (145 patents)
- Toshifumi Yoshioka (30 patents)
- Yasuyuki Watanabe (125 patents)
- Kazuhiro Aoyama (13 patents)
- Junji Kawasaki (4 patents)
- Kouki Nukanobu (5 patents)
US Patent 6320639 · Granted Nov 20, 2001