Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11143795 | Optical body, display device, and method for manufacturing optical body | Shunichi Kajiya, Hideki Terashima, Yutaka Muramoto, Masanao Kikuchi | 2021-10-12 |
| 11090886 | Cylindrical base, master and master manufacturing method | Yutaka Muramoto, Masanao Kikuchi, Shunichi Kajiya, Yasuhiro Takahashi | 2021-08-17 |