Assignee
Inventors
- Shoichi Ozaki (1 patents)
- Junko Sobajima (1 patents)
- Hiroko Uesugi (1 patents)
- Unknown
- Masao Tanaka (7 patents)
- Kazuwa Nakao (12 patents)
- Michiteru Yoshida (1 patents)
- Hitoshi Shirakawa (3 patents)
- Fumio Osakada (10 patents)
US Patent 6822078 · Granted Nov 23, 2004