Assignee
Inventors
- Akihiko Sakai (42 patents)
- Shigeo Hata (19 patents)
- Yasuyuki Aiko (16 patents)
- Katsuhide Koga (31 patents)
- Takashi Nagaya (22 patents)
- Takashi Birumachi (12 patents)
- Shingo Kitamura (31 patents)
US Patent 7415226 · Granted Aug 19, 2008