Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8077858 | Echo canceler and echo canceling method | — | 2011-12-13 |
| 8073132 | Echo canceler and echo canceling program | — | 2011-12-06 |
| 7961855 | Voice communications apparatus | Hiromi Aoyagi, Kazuyoshi Akie | 2011-06-14 |