Assignee
Inventors
- Yoshirou Nakata (13 patents)
- Toshio Yamada (165 patents)
- Atsushi Fujiwara (58 patents)
- Isao Miyanaga (24 patents)
- Shin Hashimoto (86 patents)
- Yukiharu Uraoka (10 patents)
- Yasushi Okuda (16 patents)
- Kenzou Hatada (4 patents)
US Patent 6323663 · Granted Nov 27, 2001