Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9143357 | Chat apparatus transmitting/receiving information indicating switching of chat | Hidehiko Fujiwara | 2015-09-22 |
| 7839893 | Voice data transmitting and receiving system | Yoshikazu Kobayashi | 2010-11-23 |