Issued Patents 2023
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11843159 | Split ring resonator and communication device | Keishi Kosaka, Eiji Hankui, Hiroshi Toyao | 2023-12-12 |
| D976883 | Antenna | Mariko Koyama, Keishi Kosaka, Hiroshi Toyao, Takeshi Ebisawa, Osamu Hashiguchi +1 more | 2023-01-31 |
| D976884 | Antenna | Mariko Koyama, Keishi Kosaka, Hiroshi Toyao, Eiji Hankui, Osamu Hashiguchi +1 more | 2023-01-31 |
| 11552399 | Split-ring resonator, board and connector | Keishi Kosaka, Eiji Hankui, Hiroshi Toyao | 2023-01-10 |