Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8057270 | Contact device | Hiroyuki Nakagawa, Hitoshi Sadakuni, Daisuke Fujita, Tatsuya Hayashi | 2011-11-15 |
| 7999202 | Contact | Daisuke Fujita, Hitoshi Sadakuni, Hiroyuki Nakagawa | 2011-08-16 |