Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11755650 | Information providing system, information processing device, and information providing method | Kazuhiko Yamada, Misato Naito | 2023-09-12 |
| 11172332 | Mobile information terminal, information acquisition device, information acquisition method, and information providing system | Kazuhiko Yamada, Junji Sukeno | 2021-11-09 |
| 10848307 | Radio transmission device, reception device, transmission and reception system, and transmission and reception method | Kazuhiko Yamada, Masao Noguchi | 2020-11-24 |