Assignee
Inventors
- Seiji Hirakawa (11 patents)
- Shoji Yamada (78 patents)
- Akira Takamori (27 patents)
- Mitsuhiro Shirota (17 patents)
- Toshiaki Yoshikawa (47 patents)
- Takashi Ikeda (316 patents)
- Hiroki Okazawa (10 patents)
US Patent 7517185 · Granted Apr 14, 2009