Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6486830 | Directional antenna apparatus | Ryuji Kohno, Hiroki Mochizuki | 2002-11-26 |
| 6473055 | Directional antenna apparatus and mobile communication system using the same | Ryuji Kohno | 2002-10-29 |