Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12345902 | Optical device and method of producing optical device | Masashi Kawashita, Yoshiko Ishimaru, Azusa Yamagishi | 2025-07-01 |
| 12222530 | Wavelength selective filter, display, optical device, and method of producing wavelength selective filter | Masashi Kawashita | 2025-02-11 |
| 12124062 | Wavelength selection filter, method of manufacturing wavelength selection filter, and display device | Masashi Kawashita, Yuki Yasu, Yoshiko Ishimaru | 2024-10-22 |
| 11867933 | Display having sub-wavelength polygonal periodic elements | Hidemitsu Hakii, Masashi Kawashita, Tomoya Uchida | 2024-01-09 |