Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8040838 | Communication system, multicast switching device, and communication method | Hiroshi Kawakami | 2011-10-18 |
| 8026453 | Switch | Kenji Yasufuku | 2011-09-27 |
| 7973256 | Spring-biased switch for an electronic device | Kenji Yasufuku, Yasuchika Kudo | 2011-07-05 |