Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6608830 | Router | Hisashi Hirano, Ryota Hirose | 2003-08-19 |
| 5805684 | Communication terminal device | Ryota Hirose, Kazurou Tanaka | 1998-09-08 |
| 5166979 | Data transmitting equipment | Akira Takayama | 1992-11-24 |