Assignee
Inventors
- Chiaki Sumi (10 patents)
- Satohiko Nakano (10 patents)
- Mutsuro Aoyama (11 patents)
- Kazunori Sakamoto (54 patents)
- Hideki Kawabata (33 patents)
- Muneto Inayoshi (27 patents)
- Hajime Shiohara (2 patents)
US Patent 7487687 · Granted Feb 10, 2009