Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9664821 | Optical element and method for manufacturing master for producing optical element | Kazuya Hayashibe, Tooru Nagai | 2017-05-30 |
| 9588259 | Optical element including primary and secondary structures arranged in a plurality of tracks | Kazuya Hayashibe | 2017-03-07 |