Assignee
Inventors
- Masaaki Hirano (9 patents)
- Eiji Kawaminami (12 patents)
- Akira Toyoshima (9 patents)
- Hiroyuki Moritomo (28 patents)
- Norio Seki (16 patents)
- Ryutaro Wakayama (7 patents)
- Minoru Okada (53 patents)
- Toshiyuki Kusayama (5 patents)
US Patent 7569688 · Granted Aug 4, 2009