Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12432322 | Projection type video display device | Naoya OKA, Kenichi Iwahara | 2025-09-30 |
| 12058478 | Projection type video display device | Naoya OKA, Kenichi Iwahara | 2024-08-06 |
| 11305928 | Packaging bag | Misao Nishigaki | 2022-04-19 |
| 11292649 | Packaging bag | Misao Nishigaki | 2022-04-05 |
| 9900569 | Projection-type image display device | Shinji Onodera, Satomi Morishita, Naoya OKA, Masaaki Iwanaga | 2018-02-20 |
| 6280890 | Color filter and color liquid crystal display device | Masashi Sawamura, Kenichi Fujita, Takeo Sugiura, Takao Taguchi | 2001-08-28 |