Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6809631 | Data transmitting and receiving method and portable communication terminal apparatus | Miwako Doi, Jota Suzuki, Noriyasu Kato | 2004-10-26 |
| 6744369 | Gate entry system using short range radio communications with user terminal devices | — | 2004-06-01 |