Assignee
Inventors
- Kazuyuki Sumi (7 patents)
- Hirohisa Wakai (3 patents)
- Takashi Nishimura (202 patents)
- Yuji Ichikawa (16 patents)
- Masafumi Takahashi (65 patents)
- Daisuke Nakano (37 patents)
- Toru Ueda (46 patents)
- Kazuhito Nagura (21 patents)
US Patent 6554490 · Granted Apr 29, 2003