Assignee
Inventors
- Hidetaka Nakao (10 patents)
- Eisaku Hayashi (19 patents)
- Kunio Oishi (15 patents)
- Isao Hayakawa (1 patents)
- Yoshiaki Miyake (9 patents)
- Yoshikuni Tateyama (22 patents)
- Takeshi Ashihara (1 patents)
US Patent 8078306 · Granted Dec 13, 2011