Issued Patents 2023
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11843159 | Split ring resonator and communication device | Keishi Kosaka, Yasuhiko Matsunaga, Eiji Hankui | 2023-12-12 |
| 11626664 | Antenna | Keishi Kosaka | 2023-04-11 |
| D976883 | Antenna | Mariko Koyama, Keishi Kosaka, Yasuhiko Matsunaga, Takeshi Ebisawa, Osamu Hashiguchi +1 more | 2023-01-31 |
| D976884 | Antenna | Mariko Koyama, Keishi Kosaka, Yasuhiko Matsunaga, Eiji Hankui, Osamu Hashiguchi +1 more | 2023-01-31 |
| 11552399 | Split-ring resonator, board and connector | Keishi Kosaka, Eiji Hankui, Yasuhiko Matsunaga | 2023-01-10 |
| 11545755 | Conductor, antenna, and communication device | Eiji Hankui, Keishi Kosaka | 2023-01-03 |