Assignee
Inventors
- Denji Mashimo (4 patents)
- Hiroshi Nishikawa (184 patents)
- Takahiro Nishikawa (40 patents)
- Yasuo Sakamoto (11 patents)
- Takayuki Mizuno (69 patents)
- Kazuya Sato (130 patents)
- Makoto Aida (15 patents)
US Patent 6431840 · Granted Aug 13, 2002