Issued Patents 2017
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9772477 | Projection zoom lens and projection type display device | — | 2017-09-26 |
| 9739985 | Projection lens and projection display apparatus | Tomoyuki Baba, Yukiko Nagatoshi, Masanao Kawana, Akiko Nagahara | 2017-08-22 |
| 9557538 | Projection zoom lens and projection type display device | Yukiko Nagatoshi, Masanao Kawana | 2017-01-31 |
| 9541743 | Projection zoom lens and projection type display device | Yukiko Nagatoshi, Masanao Kawana | 2017-01-10 |