Assignee
Inventors
- Eiji Hattori (19 patents)
- Masayoshi Matsumura (13 patents)
- Kazuhito Shimizu (2 patents)
- Toshiharu Osaka (1 patents)
- Tooru Ichikawa (25 patents)
- Masahiro Ito (290 patents)
- Yoji Tanaka (17 patents)
US Patent 7694841 · Granted Apr 13, 2010