Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8391137 | Management system and management method for managing a communication apparatus | — | 2013-03-05 |
| 7668155 | IP telephony system, VoIP terminal, and method and program for reproducing hold sound or audible sound used therein | Mao Masuhiro, Yasuhiro Watanabe | 2010-02-23 |
| 6274519 | Food wrapping cloth | Sataro Shimazaki | 2001-08-14 |