Issued Patents 2023
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11592156 | Diffuser plate, designing method of diffuser plate, manufacturing method of diffuser plate, display device, projection device, and lighting device | Naoki Hanashima, Akio Takada, Kazuyuki Shibuya | 2023-02-28 |
| 11579350 | Wire grid polarization plate having dielectric layer with concave portions | Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Akio Takada | 2023-02-14 |
| 11543702 | Polarizer and optical apparatus | Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Akio Takada | 2023-01-03 |