Issued Patents 2016
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9513407 | Photochromic composition and optical article using photochromic composition | Toshimitsu Hiraren, Yasutomo Shimizu | 2016-12-06 |
| 9377664 | Photocromic composition | Toshimitsu Hiraren, Yasutomo Shimizu | 2016-06-28 |
| 9316765 | Photochromic composition | Toshimitsu Hiraren, Yasutomo Shimizu, Kazuhiro Teranishi | 2016-04-19 |
| 9234984 | Photochromic composition | Toshimitsu Hiraren, Yasutomo Shimizu | 2016-01-12 |