Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6965654 | Frequency offset quantity detecting apparatus | — | 2005-11-15 |
| 6845244 | Directivity control type communication apparatus and adaptive array antenna apparatus | Katsuhiko Hiramatsu | 2005-01-18 |
| 6754467 | Method of directive transmission and directivity-controlled communication device | Katsuhiko Hiramatsu | 2004-06-22 |
| 6556845 | Base station device and transmission method | Katsuhiko Hiramatsu | 2003-04-29 |
| 6501943 | Adaptive directivity transmission device and method | Katsuhiko Hiramatsu, Keiji Takausaki, Hideki Yukitomo | 2002-12-31 |
| 6498804 | Method of directional reception using array antenna, and adaptive array antenna unit | Sadaki Futagi, Katsuhiko Hiramatsu, Hideki Yukitomo | 2002-12-24 |