Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6760840 | File editing system and shared file editing system with file content secrecy, file version management, and asynchronous editing | Toshinari Takahashi, Ichiro Tomoda, Masao Murato | 2004-07-06 |
| 6687368 | Tone signal detecting method and tone signal detector | Hiromi Aoyagi | 2004-02-03 |
| 6678660 | Receiving buffer controlling method and voice packet decoder | Hiromi Aoyagi | 2004-01-13 |