Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8025409 | Optical apparatus and projection display system | Nao Kawamura, Nobuhiko Nishiki, Masayuki Shimizu, Takuya Hasegawa | 2011-09-27 |
| 6144492 | Optical block and display unit | Atsushi Iwamura, Takaaki Iwaki, Toru Kawai | 2000-11-07 |
| 6095654 | Projection type display apparatus | Masato Hatanaka, Yusaku Tagawa | 2000-08-01 |