Assignee
Inventors
- Ko Ishii (12 patents)
- Shinichi Takahashi (101 patents)
- Mitsutoshi Sugano (9 patents)
- Hirokatsu Nagatake (5 patents)
- Aki Yoshioka (4 patents)
- Makoto Kawamura (108 patents)
- Akira Miura (120 patents)
- Masayuki Koyama (28 patents)
US Patent 6429981 · Granted Aug 6, 2002