Assignee
Inventors
- Noriko Yamada (18 patents)
- Toru Takahashi (508 patents)
- Tadashi Sakon (11 patents)
- Yoichi Matsuzaki (7 patents)
- Atsushi Nogami (50 patents)
- Shingo Katayama (11 patents)
- Ikuko Shiina (2 patents)
US Patent 6589644 · Granted Jul 8, 2003