Assignee
Inventors
- Takuro Ishibashi (3 patents)
- Emi Higashiizumi (2 patents)
- Ryuji Sotoaka (8 patents)
- Fukusaburo Ishihara (4 patents)
- Minoru Kakuda (15 patents)
- Masumi Ogasawara (1 patents)
- Kouzo Ishibashi (2 patents)
US Patent 6843981 · Granted Jan 18, 2005