Assignee
Inventors
- Katsuhide Manabe (38 patents)
- Akira Mabuchi (26 patents)
- Hisaki Kato (39 patents)
- Michinari Sassa (22 patents)
- Norikatsu Koide (47 patents)
- Shiro Yamazaki (72 patents)
- Masafumi Hashimoto (33 patents)
- Isamu Akasaki (66 patents)
US Patent 6830992 · Granted Dec 14, 2004