Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643655 | System and method for digital data communication | Masahiro Oashi, Tatsuya Shimoji, Yasuyuki Sonoda | 2003-11-04 |
| 6622004 | Data transceiving system and method | Yasuyuki Sonoda | 2003-09-16 |