Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8836297 | Switching device and method of controlling switching device | — | 2014-09-16 |
| 4989204 | High throughput communication method and system for a digital mobile station when crossing a zone boundary during a session | Toshimitsu Shimizu | 1991-01-29 |