Assignee
Inventors
- Mineyuki Yokoyama (14 patents)
- Hiroyuki Tsukada (1 patents)
- Tetsuya Sakai (79 patents)
- Shoko Yamaguchi (9 patents)
- Yumiko Suzuki (3 patents)
- Yasukazu Nakayama (5 patents)
- Hiroaki Yasuhara (2 patents)
- Unknown
US Patent 6419962 · Granted Jul 16, 2002