Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10520808 | Manufacturing method of diffractive optical elements | Fusao Ishii, Takahashi Kazuhiko, Abrakawa Yuji, Keiichi Murakami | 2019-12-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10520808 | Manufacturing method of diffractive optical elements | Fusao Ishii, Takahashi Kazuhiko, Abrakawa Yuji, Keiichi Murakami | 2019-12-31 |