Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9098235 | Voice communication arrangement for minimizing communication delay caused by audio signal processing in OS | Shinji Usuba | 2015-08-04 |
| 8867527 | Speech processing peripheral device and IP telephone system | Hiromi Aoyagi, Shinji Usuba, Hiroshi Hashizume | 2014-10-21 |
| 8472433 | Voice communications system | Shinji Usuba, Hiromi Aoyagi | 2013-06-25 |
| 7983908 | Noise-canceling device for voice communication terminal using configurable multiple digital filters | Kenichi Kurihara | 2011-07-19 |
| 7733849 | Voice communications system | Shinji Usuba, Hiromi Aoyagi | 2010-06-08 |
| 7706354 | Telephone switching system accommodating a plurality of line packages | Shinji Usuba | 2010-04-27 |
| 7672296 | Real-time communications system of high communications quality and media terminal apparatus | Hiromi Aoyagi, Yumiko Araki, Shinji Usuba | 2010-03-02 |
| 7443837 | Telephone communication system | Hiromi Aoyagi, Shinji Usuba | 2008-10-28 |