Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8045541 | IP telephone system, IP telephone apparatus and method for identifying destination user | Kiyoshi Toyoda | 2011-10-25 |
| 7756112 | IP telephone system, IP telephone apparatus and method for recording message | Kiyoshi Toyoda | 2010-07-13 |
| 7715367 | IP telephone system, IP telephone apparatus and communications method | Kazuto Kobayashi, Akira Miyajima, Kentaro Tada, Kiyoshi Toyoda | 2010-05-11 |
| 7675907 | IP telephone system, IP telephone apparatus and method for identifying destination user | Kiyoshi Toyoda | 2010-03-09 |
| 7440444 | IP telephone system, IP telephone apparatus and method for identifying destination user | Kiyoshi Toyoda | 2008-10-21 |