Assignee
Inventors
- Tomoichi Ebata (21 patents)
- Shigeru Miyake (34 patents)
- Masatoshi Takihiro (12 patents)
- Osamu Takada (31 patents)
- Minoru Koizumi (48 patents)
- Yoshiyuki Kurosaki (2 patents)
- Toshiaki Hirata (37 patents)
- Koji Tsukada (20 patents)
US Patent 6708209 · Granted Mar 16, 2004