Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11513473 | Waveguide, waveguide manufacturing apparatus, waveguide manufacturing method, and video display device using the same | Hiromichi Yamakawa | 2022-11-29 |
| 11493759 | Hologram light guide plate with plurality of layers and head mount display using hologram light guide plate | Tomoto Kawamura, Mitsuru Nagasawa, Hiromichi Yamakawa | 2022-11-08 |
| 11428939 | Light-guiding plate, light-guiding plate manufacturing method, and video display device | Ryuji Ukai | 2022-08-30 |