Issued Patents 2011
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8000316 | IP telephone apparatus, ENUM server, terminal apparatus and IP telephone system | Kazuto Kobayashi | 2011-08-16 |
| 7957366 | IP telephone system, IP telephone apparatus and calling method | Yasuhito Kaizawa, Kazuto Kobayashi | 2011-06-07 |
| 7957367 | IP telephone apparatus, ENUM server, and calling method via the internet | Kazuto Kobayashi | 2011-06-07 |
| 7944912 | IP telephone system and calling method | Kazuto Kobayashi | 2011-05-17 |
| 7885252 | IP telephone apparatus | Kazuto Kobayashi | 2011-02-08 |